1. To lock an account, you can use the usermod command with the ____ option.
Answer
Correct Answer:
-L
Note: This Question is unanswered, help us to find answer for this one
2. To define an additional field in datasheet view, tap or click the ____ column heading.
Answer
Correct Answer:
Click to Add
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3. To create or edit a user cron table, you can use the ____ option to the crontab command.
Answer
Correct Answer:
e
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4. Every computer contains a(n) ____ to send and receive data from other computers over a network.
Answer
Correct Answer:
NIC
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5. ____________ is a script or a tool that obtains privileges of a root?
Answer
Correct Answer:
Superuser
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6. ____ components define the file system on unix/linux.
Answer
Correct Answer:
Four
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7. When using the chmod command, the mode rwx can be represented by the number ____.
Answer
Correct Answer:
7
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8. Unix and linux are operating systems designed to run on ________.
Answer
Correct Answer:
Servers.
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9. To send a print job to a printer, you must first use the ____ command and specify what to print.
Answer
Correct Answer:
Lp
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10. The _______ command will print a list of the commands that you've previously executed.
Answer
Correct Answer:
History
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11. You can redirect a file to the standard input of a command using the ____ metacharacter.
Answer
Correct Answer:
<
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12. To search all man pages? name sections for the keyword less, you would type ______________ less.
Answer
Correct Answer:
Whatis
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13. The bind documentation consist of ____ chapters.
Answer
Correct Answer:
Eight
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14. The ______________ command can be used to see network interfaces.
Answer
Correct Answer:
Ifconfig
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15. The ____ metacharacter indicates background command execution.
Answer
Correct Answer:
&
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16. The ____ is the prompt symbol traditionally associated with ordinary users.
Answer
Correct Answer:
Dollar sign ($)
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17. Stephen bourne at at&t bell labs developed the ____ shell as the first unix command processor.
Answer
Correct Answer:
Bourne
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18. After performing a search, you can use the ____ key to return to a previously found match:
Answer
Correct Answer:
N
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19. When you start vim, you are in ____ mode automatically.
Answer
Correct Answer:
Command
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20. The ____ command prints a listing of environment and configuration variables.
Answer
Correct Answer:
Printenv
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21. You want to extract the contents from an rpm package. Which command do you use?You want to extract the contents from an rpm package. Which command do you use?
Answer
Correct Answer:
Rpm2cpio
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22. What is the difference between the apt remove and apt autoremove commands?What is the difference between the apt remove and apt autoremove commands?
Answer
Correct Answer:
Both uninstall software. The apt autoremove command also uninstalls the dependencies.Both uninstall software. The apt autoremove command also uninstalls the dependencies.
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23. The object that systemd uses to manage services is called a _ file.
Answer
Correct Answer:
Unit
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24. Which statement about default ACLs is true?
Answer
Correct Answer:
They provide inheritance for user and group permissions.
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25. What is the first step to integrate extended globs into your command-line workflow?
Answer
Correct Answer:
Make extended globs persistent by adding shopt -s extglob to a shell startup file.
Note: This Question is unanswered, help us to find answer for this one
26. Which of these features is missing from the Bash Language?
Answer
Correct Answer:
Object orientation
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27. Typing systemctl enable crond does what to the crond service?
Answer
Correct Answer:
Ensures that the crond service starts automatically on bootup.
Note: This Question is unanswered, help us to find answer for this one
28. Using alternation in a POSIX-extended regular expression, which numbers would this pattern match? ^(([0-9][0-9]?)|(2[0-9][0-9]))$
Answer
Correct Answer:
0-99 and 200-299
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29. What would be in out.txt?
Answer
Correct Answer:
The content of in.txt.
Note: This Question is unanswered, help us to find answer for this one
30. What is the difference between reading the list of disk partitions from /proc/partitions and getting it using fdisk -l?
Answer
Correct Answer:
/proc/partitions is the kernel's list of partitions held in ram. fdisk -l reads the partition table from the drive itself.
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31. With GNU tools such as a GNU grep, awk, and sed, what is the difference between basic regular expressions (BREs) and extended regular expressions (EREs)?
Answer
Correct Answer:
Only the syntax differs.
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32. When installing a downloaded package on the RedHat-based distribution manual using RPM, what may you have to do first?
Answer
Correct Answer:
Download all dependencies and install them before installing the desired package.
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33. What do you need to do before you can perform SSH passwordless logins?
Answer
Correct Answer:
Generate RSA or DSA key pairs using ssh-keygen.
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34. What is the purpose of a Mail Transport Agent (MTA)?
Answer
Correct Answer:
It transports mail from one mail server to another.
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35. Journald differs from traditional logging services such as rsyslogd and syslogd because its logs are _ by default.
Answer
Correct Answer:
Persistent
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36. What is the difference between using = and == in a BASH double square bracket if conditional? n (==) checks equality.
Answer
Correct Answer:
There is no difference.
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37. To permanently add NAT to the default zone using firewalld, you would use which command string?
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38. To run CGI scripts with Apache, you need to _.
Answer
Correct Answer:
Make the script executable and set the httpd_enable_cgi SELinux boolean
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39. Using backreferences in a POSIX regular expression, which word would this pattern match? (ss).*\1
Answer
Correct Answer:
Possess
Note: This Question is unanswered, help us to find answer for this one
40. What is the difference between these two lines of code? echo "data" | tee -a file.txt echo "data" >> file.txt
Answer
Correct Answer:
The first line will append the word data to file.txt and output it on the screen. The second line will append the word data only to file.txt.
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41. What is the difference the == and =~ comparison operators when used in BASH double square bracket if conditionals?
Answer
Correct Answer:
The == operator performs a string comparison; =~ performs a regex comparison.
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42. What tool Should you use to replace a physical volum in LVM?
Answer
Correct Answer:
Pvmove
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43. What is the command to create an associative array in Bash?
Answer
Correct Answer:
Declare -A
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44. What is the difference between the whoami and logname commands?
Answer
Correct Answer:
Whoami tells who are you currently, and logname tells who you were when you logged in initially.
Note: This Question is unanswered, help us to find answer for this one
45. Most commands that support SELinux use which option to display SELinux security context?
Answer
Correct Answer:
-Z
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46. What will not happen if you run the make command without parameters?
Answer
Correct Answer:
It will clean up all previously generated binaries and perform a new build.
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47. Which choice is a Network Manager tool used to configure network connections from the GUI?
Answer
Correct Answer:
Nm-connection-editor
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48. An rsyslogd filter determines which items in a log file to act on. What is it made up of?
Answer
Correct Answer:
A filter and an action
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49. Which option would you choose to force grep to use a basic regular expression (BRE)?
Answer
Correct Answer:
Grep -G
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50. What issue might a user have when they mount a filesystem by partition path such as /dev/sdal in the /etc/fstab file?
Answer
Correct Answer:
The device order may change on boot, resulting in a system that will not boot properly.
Note: This Question is unanswered, help us to find answer for this one
51. Using a systemd-based distribution, you want to restrict the cron service from running either automatically or manually. Which command would you run?
Answer
Correct Answer:
Systemctl mask crond
Note: This Question is unanswered, help us to find answer for this one
52. What will this command print? echo "Thu Jun 4 15:45:45 PDT 2020" | cut -f3 -d" "
Answer
Correct Answer:
4
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53. As root, you set execute permissions for user, group, and other on a directory. Now users can do what?
Answer
Correct Answer:
They can traverse it.
Note: This Question is unanswered, help us to find answer for this one
54. How does TCP Wrappers differ from a firewall?
Answer
Correct Answer:
TCP Wrappers works at the application layer, so it can make access decisions on encrypted data.
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55. When would this system cron job run its task? 0 22 * * 1-5
Answer
Correct Answer:
At 10:00 PM Monday to Friday
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56. To elevate privileges using the sudo command, a user must _.
Answer
Correct Answer:
Enter their own password
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57. What would happen if you have a script file named script that takes a long time to complete, and you type nohup ./script & in the command line?
Answer
Correct Answer:
The script will run in the background until you end the session.
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58. With most GNU commands, if an option is a word, what will it be preceded by?
Answer
Correct Answer:
Two dashes
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59. You can set Linux group passwords using which command?
Answer
Correct Answer:
Gpasswd
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60. What would you type to list all systemd service unit files, whether they are enabled or not?
Answer
Correct Answer:
Systemctl list-unit-files -at service
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61. To change the priority of multiple swap partitions, which file would you edit?
Answer
Correct Answer:
/etc/fstab
Note: This Question is unanswered, help us to find answer for this one
62. What does this command string do? find / -size -10K -exec ls -l {} \;
Answer
Correct Answer:
It finds all files in the file system smaller than 10k and long lists them using the ls command.
Note: This Question is unanswered, help us to find answer for this one
63. Which kernel module do you need to load to use interface bonding?
Answer
Correct Answer:
Bonding.
Note: This Question is unanswered, help us to find answer for this one
64. What would this sed command do? sed -E 's/[a-Z]{4}/(&)/' textfile.txt
Answer
Correct Answer:
It would replace the first four letters with an ampersand (&).
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65. Extending an LVM volume group does what to the formatted filesystem?
Answer
Correct Answer:
It does nothing.
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66. Why might would you use the usermod command ?
Answer
Correct Answer:
To change global user account settings
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67. What is the job of the NetworkManager daemon?
Answer
Correct Answer:
It is a command-line tool that manages network connections.
Note: This Question is unanswered, help us to find answer for this one
68. To search from the current cursor position up to the beginning of the file using VIM, type _ and then the search criteria.
Answer
Correct Answer:
?
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69. To configure the Kerberos client, which command should you use to import the keytab file?
Answer
Correct Answer:
Ktutil
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70. When configuring a Samba share, how would the engineering group be specified in the smb.conf?
Answer
Correct Answer:
It would be preceded by an @ symbol, such as @engineering.
Note: This Question is unanswered, help us to find answer for this one
71. In an extended regular expression, you would use (pattern){3} to match three instances of the pattern. How would you match the same thing with an extended glob?
Answer
Correct Answer:
Occurrence quantifiers are not supported in Bash's version of extended globs, so this is not possible.
Note: This Question is unanswered, help us to find answer for this one
72. What is the /etc/hosts file used for?
Answer
Correct Answer:
Configuring DNS name servers
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73. You send an email to a remote client using the following syntax. What will be in the body of the email?
Answer
Correct Answer:
The current date and time
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74. What NFS option allows the root user to access NFS shares as the root user?
Answer
Correct Answer:
No_root_squash
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75. What is not inherited by child process?
Answer
Correct Answer:
Shell aliases
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76. To remove all ACLs from a directory , use setfacl with which options?
Answer
Correct Answer:
-b
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77. What is one major difference between brace expansion and globs?
Answer
Correct Answer:
Brace expansion creates a list; globs match the list of pathnames.
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78. What is a major advantage of using Logical Volume Management (LVM)?
Answer
Correct Answer:
Volumes can be resized even if the free space is not contiguous.
Note: This Question is unanswered, help us to find answer for this one
79. When a user deletes a file using the rm command, Linux will _.
Answer
Correct Answer:
Ask for confirmation if configured to do so
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80. Why is the passwd command able to modify the /etc/passwd file?
Answer
Correct Answer:
It has the SUID permission mode and is owned by root.
Note: This Question is unanswered, help us to find answer for this one
81. In the Bash shell, what is the difference between piping into | and piping into |&?
Answer
Correct Answer:
Piping into | pipes stdout. Piping into |& pipes stdout and stderr.
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82. Why doesn't passwd -l keep a user from logging in via other methods?
Answer
Correct Answer:
It locks only the password, not the account, so users can still authenticate with keys or other methods.
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83. You are managing an Apache web server on a system using SELinux. By default it cannot read personal webpages in users' home directories. What SELinux boolean would you set to allow this?
Answer
Correct Answer:
Httpd_enable_homedirs
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84. Ifconfig has been deprecated. What command is now recommended for changing IP addresses in the live config?
Answer
Correct Answer:
Ip
Note: This Question is unanswered, help us to find answer for this one
85. When would this system cron job run its task? 0 1 \* \* \*
Answer
Correct Answer:
Every day at 1:00 AM
Note: This Question is unanswered, help us to find answer for this one
86. What command would you use to resize an LVM volume group to include an additional physical volume?
Answer
Correct Answer:
Vgextend
Note: This Question is unanswered, help us to find answer for this one
87. In a systemd-based OS, you can change the system hostname by editing /etc/hostname manually and then doing what?
Answer
Correct Answer:
Nothing, the system notices automatically.
Note: This Question is unanswered, help us to find answer for this one
88. When archiving files, which command will preserve all file attributes including ACLs and SELinux security context?
Answer
Correct Answer:
Tar
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89. What character class is equal to this set? [0-9]
Answer
Correct Answer:
[[:digit:]]
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90. Packages can be downloaded but not installed with yum or dnf by specifying which option?
Answer
Correct Answer:
--downloadonly
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91. Assume the variable myNumber holds a string consisting of 10 digits. What will this command output? echo \$myNumber | sed -e 's/^[[:digit:]][[:digit:]][[:digit:]]/(&)/g'
Answer
Correct Answer:
It will output the same 10-digit number, but the first 3 digits will be inside parentheses.
Note: This Question is unanswered, help us to find answer for this one
92. What does the /etc/nsswitch.conf file manage?
Answer
Correct Answer:
Sources for name service information
Note: This Question is unanswered, help us to find answer for this one
93. What is the key difference between a redirect (>) and piping to the tee command?
Answer
Correct Answer:
The tee command sends output to STDOUT and a file, whereas a redirect sends output only to a file.
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94. A backup drive was created using dd to make a bit-for-bit copy. When the drive is inserted into an iSCSI target before it is booted up, the data appears to be missing. What happened?
Answer
Correct Answer:
When the backup drive was duplicates, the label was as well. When booted, the system mounted the old duplicates drive by its identical label.
Note: This Question is unanswered, help us to find answer for this one
95. What command is used to determine the amount of disk usage for a directory?
Answer
Correct Answer:
Du
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96. The ssh-copy-id command copies _ to the remote host.
Answer
Correct Answer:
The ssh public key
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97. Which command in Bash executes the last line in the shell history that starts with ls?
Answer
Correct Answer:
!ls
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98. What would this command output? ps -e --format uid,pid,ppid,%cpu,cmd
Answer
Correct Answer:
The user ID, process ID, parent process ID, CPU usage, and command name of a process
Note: This Question is unanswered, help us to find answer for this one
99. You want to resolve a long list of DNS names using dig. What should you do?
Answer
Correct Answer:
Create a text file including all names and use the -f option of dig.
Note: This Question is unanswered, help us to find answer for this one
100. How would you describe PCP (Performance Co-Pilot)?
Answer
Correct Answer:
It is a set of tools, services, and libraries for gathering and analyzing performance measures.
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101. Which command will tell you how long a system has been running?
Answer
Correct Answer:
Uptime
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102. Which command allows you to do packet analysis from the command line?
Answer
Correct Answer:
Tcpdump
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103. What would this locate command show? locate --regexp '^/usr.*pixmaps.*jpg$'
Answer
Correct Answer:
All file paths that start with
Note: This Question is unanswered, help us to find answer for this one
104. What does this command string do? find / -size +10M -exec ls -l {} ;
Answer
Correct Answer:
It finds all files larger than 10 MB and long lists them using the ls command.
Note: This Question is unanswered, help us to find answer for this one
105. When using iproute2, how do you show routing information for an IPv6 network?
Answer
Correct Answer:
Ip -6 route show
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106. Linux file access control lists (ACLs) are _.
Answer
Correct Answer:
Discretionary access control system permissions layered over standard Linux permissions
Note: This Question is unanswered, help us to find answer for this one
107. To mount a drive by its ID, what command would you use first to retrieve it?
Answer
Correct Answer:
Blkid
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108. A sorting ____ is a field position within each line.
Answer
Correct Answer:
Key
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109. Linux is an example of a(n) ______.
Answer
Correct Answer:
Operating system
Note: This Question is unanswered, help us to find answer for this one
110. ____ gives the owner read, write, and execute permissions.
Answer
Correct Answer:
Chmod 755
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111. The core component of the gui in linux is referred to as ____.
Answer
Correct Answer:
X Windows
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112. The location of users' default shells is stored in the ______ file.
Answer
Correct Answer:
/etc/passwd
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113. The main characteristic of ____ is that its source code is published with the software.
Answer
Correct Answer:
Open source software
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114. The ____ is where directories and files are stored on a disk drive.
Answer
Correct Answer:
Data block
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115. ____ is a freely available version of x windows used in many linux distributions.
Answer
Correct Answer:
XFree86
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116. When you append a(n) ____ to a command, the command is run in a background process.
Answer
Correct Answer:
&
Note: This Question is unanswered, help us to find answer for this one
117. To move from the /home/joe/test/data to the /home/joe directory, use the ____ command.
Answer
Correct Answer:
Cd ../..
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118. The unix/linux shell acts as a(n) ____ when reading script files.
Answer
Correct Answer:
Interpreter
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119. The ____ function within the awk command is used to format output.
Answer
Correct Answer:
Printf
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120. By default, pr formats the specified files into single-column pages of ____ lines.
Answer
Correct Answer:
66
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121. By default, all print jobs have a priority of ____.
Answer
Correct Answer:
50
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122. The line in the script for setting the bash shell is: ____.
Answer
Correct Answer:
#!/bin/bash
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123. The root of a file system is denoted by the ____.
Answer
Correct Answer:
Forward slash
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124. You can type more than one command on the command line by separating commands with a ____.
Answer
Correct Answer:
Semicolon (;)
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125. In linux most system configuration files are stored in the ____ directory.
Answer
Correct Answer:
/etc
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126. To view a list of files and their type, use the ____ switch to the ls command.
Answer
Correct Answer:
-F
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127. To display the contents of a file called data, use the command ____.
Answer
Correct Answer:
Cat data
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128. The section of an inode that stores permissions is called the ____ of the file.
Answer
Correct Answer:
Mode
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129. The fastest method to search for files in the linux directory tree is to use the ____ command.
Answer
Correct Answer:
Locate
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130. Solaris, hp-ux and aix are all ____ of unix.
Answer
Correct Answer:
Flavors
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131. The _____ command displays information about the linux kernel:
Answer
Correct Answer:
Uname
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132. The ____ filesystem contains most of the operating system files.
Answer
Correct Answer:
Root
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133. The ____ command displays the arp table and is used to modify it.
Answer
Correct Answer:
Arp
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134. The ____ command can be used to provide a long listing for each file in a certain directory.
Answer
Correct Answer:
Ls -l
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135. You can type the _____ command, with no arguments, to learn your current username and nothing more?
Answer
Correct Answer:
Whoami
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136. You can execute ____ main types of linux commands.
Answer
Correct Answer:
Three
Note: This Question is unanswered, help us to find answer for this one
137. The ____ directory contains the kernel (operating system) images.
Answer
Correct Answer:
/boot
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138. You can create user accounts on the linux system by using the ____ command.
Answer
Correct Answer:
Useradd
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139. The early standard linux file system was ____.
Answer
Correct Answer:
Ext2
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140. Most files on a linux system that contain configuration information are ____ files.
Answer
Correct Answer:
Text
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141. Logic structures are also called ____ structures.
Answer
Correct Answer:
Control
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142. Linux provides the foundation for the ____ operating system.
Answer
Correct Answer:
Android
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143. Kali is explaining her request. she is working on the ___________ of her message.
Answer
Correct Answer:
Body
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144. In linux, the three levels of file access are ____, ____, and ____.
Answer
Correct Answer:
Owner; group; others
Note: This Question is unanswered, help us to find answer for this one
145. In linux, the native file system is the ____, which is installed by default.
Answer
Correct Answer:
Ext fs
Note: This Question is unanswered, help us to find answer for this one
146. If a source file contains ____ errors, it cannot be converted into an executable file.
Answer
Correct Answer:
Syntax
Note: This Question is unanswered, help us to find answer for this one
147. Everything in linux is a ____________.
Answer
Correct Answer:
File
Note: This Question is unanswered, help us to find answer for this one
148. Errors on a filesystem are often referred to as filesystem ____ and are common on most filesystems.
Answer
Correct Answer:
Corruption
Note: This Question is unanswered, help us to find answer for this one
149. Each hardware device must have its own ____ so that the operating system can detect it.
Answer
Correct Answer:
Driver
Note: This Question is unanswered, help us to find answer for this one
150. A program’s high-level language statements are stored in a file called the ____ file.
Answer
Correct Answer:
Source
Note: This Question is unanswered, help us to find answer for this one
151. A ____ is used to refer to the user’s home directory.
Answer
Correct Answer:
Tilde (~)
Note: This Question is unanswered, help us to find answer for this one
152. A ____ is commonly packaged with a new computer system.
Answer
Correct Answer:
Rescue disk
Note: This Question is unanswered, help us to find answer for this one
153. What command can be used to forward the port 8000 on the local machine to the port 80 on a remote machine with IP 192.168.0.10?
Note: This Question is unanswered, help us to find answer for this one
154. Which of the following commands can you use to transfer files securely to and from remote systems?
Answer
Correct Answer:
scp
Note: This Question is unanswered, help us to find answer for this one
155. Which of the following files is executed by bash when it is launched as a non-login shell?
Answer
Correct Answer:
.bashrc
Note: This Question is unanswered, help us to find answer for this one
156. What is Postfix?
Answer
Correct Answer:
A mail transfer agent
Note: This Question is unanswered, help us to find answer for this one
157. Which of the following commands does not give useful system information?
Answer
Correct Answer:
cat /proc/network
Note: This Question is unanswered, help us to find answer for this one
158. Which of the following is not a version control system used under Linux?
Answer
Correct Answer:
TFS
Note: This Question is unanswered, help us to find answer for this one
159. Which of the following files is used to configure filesystems shared via NFS?
Answer
Correct Answer:
/etc/exports
Note: This Question is unanswered, help us to find answer for this one
160. What is LSB?
Answer
Correct Answer:
An ensemble of standards
Note: This Question is unanswered, help us to find answer for this one
161. Which of the following desktop environments and window managers does not use GTK+?
Answer
Correct Answer:
KDE
Note: This Question is unanswered, help us to find answer for this one
162. Which of the following utilities can you use to capture and analyze packets on an Ethernet network?
Answer
Correct Answer:
wireshark
Note: This Question is unanswered, help us to find answer for this one
163. Which of the following is prohibited by the GPL under which Linux and most Linux-based software are licensed?
Answer
Correct Answer:
Static linking with closed-source proprietary software
Note: This Question is unanswered, help us to find answer for this one
164. Which of the following is not a component of a Linux mail server or gateway?
Answer
Correct Answer:
mutt
Note: This Question is unanswered, help us to find answer for this one
165. What is the function of the curl command?
Answer
Correct Answer:
To transfer data using URL Syntax
Note: This Question is unanswered, help us to find answer for this one
166. What does the command "df -h" do?
Answer
Correct Answer:
Displays filesystems usage in a human-readable way
Note: This Question is unanswered, help us to find answer for this one
167. What option should you use with LILO or GRUB to boot a Linux system in the maintenance mode, runlevel 1?
Answer
Correct Answer:
single
Note: This Question is unanswered, help us to find answer for this one
168. Which of the following commands allows you to watch the file /var/log/messages as it is written?
Answer
Correct Answer:
tail -f /var/log/messages
Note: This Question is unanswered, help us to find answer for this one
169. Which of the following commands allows you to run a graphical application on the machine "remotemachine" while allowing you to control it from your system?
Answer
Correct Answer:
ssh -X remotemachine
Note: This Question is unanswered, help us to find answer for this one
170. What is the default port used by ssh?
Answer
Correct Answer:
22
Note: This Question is unanswered, help us to find answer for this one
171. Which of the following commands is used to resume a process suspended with the Ctrl-Z shortcut?
Answer
Correct Answer:
fg
Note: This Question is unanswered, help us to find answer for this one
172. Which of the following command lines can be used as root to configure the first Ethernet card with the IP 192.168.0.1, and the default gateway as 192.168.0.10?
Note: This Question is unanswered, help us to find answer for this one
173. Where are the configuration files for a scanning device located?
Answer
Correct Answer:
/etc/sane.d/
Note: This Question is unanswered, help us to find answer for this one
174. Which of the following can not be done with the help of ssh?
Answer
Correct Answer:
None of the above
Note: This Question is unanswered, help us to find answer for this one
175. On a Linux system without the Shadow Suite installed, user passwords are stored in _______.
Answer
Correct Answer:
/etc/passwd
Note: This Question is unanswered, help us to find answer for this one
176. Which of the following options of ln will allow you to create a symbolic link?
Answer
Correct Answer:
-s
Note: This Question is unanswered, help us to find answer for this one
177. How do you update the last accessed time of a file?
Answer
Correct Answer:
touch file
Note: This Question is unanswered, help us to find answer for this one
178. What does the command "du -hcs *" do?
Answer
Correct Answer:
Displays the used space of every directory and file in the current path with a grand total
Note: This Question is unanswered, help us to find answer for this one
179. What does the command "tar zxf latest.tgz" do?
Answer
Correct Answer:
Decompresses and unpacks the latest.tgz archive
Note: This Question is unanswered, help us to find answer for this one
180. You want to show every line (with the file name and the line number) in the log files of a Ubuntu system that does NOT contain the string "info" (case insensitive). What is the proper command?
Note: This Question is unanswered, help us to find answer for this one
181. Which of the following file extensions is not used by a Linux distribution package management system?
Answer
Correct Answer:
.pkg
Note: This Question is unanswered, help us to find answer for this one
182. What is the de facto antivirus software for an e-mail server under Linux?
Answer
Correct Answer:
ClamAV
Note: This Question is unanswered, help us to find answer for this one
183. CUPS is a _______.
Answer
Correct Answer:
Printing management system
Note: This Question is unanswered, help us to find answer for this one
184. Which of the following utilities is used to change the priority of a process in the kernel's scheduler?
Answer
Correct Answer:
nice
Note: This Question is unanswered, help us to find answer for this one
185. Which of the following addresses can be used to access the CUPS printer management system on the local machine?
Answer
Correct Answer:
http://localhost:631
Note: This Question is unanswered, help us to find answer for this one
186. Which of the following protocols is not encrypted?
Answer
Correct Answer:
tcp
Note: This Question is unanswered, help us to find answer for this one
187. Which of the following virtualization solutions doesn't work on Linux x86?
Answer
Correct Answer:
Mac-on-Linux
Note: This Question is unanswered, help us to find answer for this one
188. What effect does a set sticky bit have on a file in a Linux system?
Answer
Correct Answer:
None
Note: This Question is unanswered, help us to find answer for this one
189. Which of the following is the most appropriate and fastest utility to use when regularly copying a slightly modified version of a big file, for example a video montage, to a backup server?
Answer
Correct Answer:
rsync
Note: This Question is unanswered, help us to find answer for this one
190. Which of the following utilities can you use for CCTV under Linux?
Answer
Correct Answer:
ZoneMinder
Note: This Question is unanswered, help us to find answer for this one
191. What are the standard commands to install a program from source?
Answer
Correct Answer:
./configure && make && make install
Note: This Question is unanswered, help us to find answer for this one
192. Which of the following will be of no use for running a Windows program on a Linux system?
Answer
Correct Answer:
PearPC
Note: This Question is unanswered, help us to find answer for this one
193. Which of the following commands will help you diagnose a software RAID system under Linux?
Answer
Correct Answer:
/sbin/mdadm --detail /dev/md0
Note: This Question is unanswered, help us to find answer for this one
194. Which of the following utilities displays the RAM usage?
Answer
Correct Answer:
free
Note: This Question is unanswered, help us to find answer for this one
195. What is LAMP?
Answer
Correct Answer:
An acronym used to identify a commonly used free software solution stack
Note: This Question is unanswered, help us to find answer for this one
196. With a umask set to 027, what is the initial mode for a newly created file?
Answer
Correct Answer:
640
Note: This Question is unanswered, help us to find answer for this one
197. On a Debian GNU/Linux system, which of the following is a standard path to GRUB's configuration file?
Answer
Correct Answer:
/boot/grub/grub.cfg
Note: This Question is unanswered, help us to find answer for this one
198. Which of the following programs allows, under conditions, users to execute commands as root?
Answer
Correct Answer:
sudo
Note: This Question is unanswered, help us to find answer for this one
199. Which of the following is not a Unix/Linux shell?
Answer
Correct Answer:
efi-shell
Note: This Question is unanswered, help us to find answer for this one
200. What is the name of the driver specification used to print to PostScript printers?
Answer
Correct Answer:
PPD
Note: This Question is unanswered, help us to find answer for this one
201. Which of the following licenses is not GPL-compatible?
Answer
Correct Answer:
Netscape Public License
Note: This Question is unanswered, help us to find answer for this one
202. Which of the following software packages can you use to manage an Uninterruptible Power Supply (UPS) under Linux?
Answer
Correct Answer:
nut
Note: This Question is unanswered, help us to find answer for this one
203. Which of the following options of the rm command will remove files and directories recursively without asking for confirmation?
Answer
Correct Answer:
-rf
Note: This Question is unanswered, help us to find answer for this one
204. Which command redirects all outputs from cmd to out.log with a bash terminal?
Answer
Correct Answer:
cmd out.log 2
Note: This Question is unanswered, help us to find answer for this one
205. How do you set an environment variable FOO with bash?
Answer
Correct Answer:
export FOO="bar"
Note: This Question is unanswered, help us to find answer for this one
206. Which of the following is not a usual filename to be found in a user configuration directory for OpenSSH?
Answer
Correct Answer:
id_rsa.public
Note: This Question is unanswered, help us to find answer for this one
207. What is Edubuntu?
Answer
Correct Answer:
A distribution aimed at users aged 6 to 18
Note: This Question is unanswered, help us to find answer for this one
208. Which of the following commands can be used in a script to check and repair the disk partition /dev/sda2 using the ext3 filesystem?
Answer
Correct Answer:
fsck -f -p -y /dev/sda2
Note: This Question is unanswered, help us to find answer for this one
209. Which command line utility allows you to control and monitor the health of hard disks?
Answer
Correct Answer:
smartctl
Note: This Question is unanswered, help us to find answer for this one
210. What is a daemon?
Answer
Correct Answer:
A process that runs in the background
Note: This Question is unanswered, help us to find answer for this one
211. Which of the following commands does not display active processes?
Answer
Correct Answer:
which
Note: This Question is unanswered, help us to find answer for this one
212. Which of the following commands disables a site or virtual host in Apache under Debian/Ubuntu?
Answer
Correct Answer:
a2dissite
Note: This Question is unanswered, help us to find answer for this one
213. As of Linux 2.6, what is the default sound system?
Answer
Correct Answer:
ALSA
Note: This Question is unanswered, help us to find answer for this one
214. Which of the following rpm packages cannot be installed on an amd64 machine with the appropriate system?
Note: This Question is unanswered, help us to find answer for this one
215. Which of the following distributions can not be backed by a support contract from its vendor?
Answer
Correct Answer:
Fedora
Note: This Question is unanswered, help us to find answer for this one
216. Which of the following crontab lines sets up the execution of schdcmd every 1st and 15th of the month at 7:55 and 18:55?
Answer
Correct Answer:
55 7,18 1,15 * * schdcmd
Note: This Question is unanswered, help us to find answer for this one
217. Within the grub interface, which of the following commands do you issue to install the GRUB boot-loader to the Master Boot Record of the first IDE disk?
Answer
Correct Answer:
setup (hd0)
Note: This Question is unanswered, help us to find answer for this one
218. Which of the following file systems can not be used for /?
Answer
Correct Answer:
ntfs
Note: This Question is unanswered, help us to find answer for this one
219. Under Linux, the user directories are usually stored in_______.
Answer
Correct Answer:
/home/
Note: This Question is unanswered, help us to find answer for this one
220. Which of the following commands reconfigures Xorg on a Debian machine?
Answer
Correct Answer:
dpkg-reconfigure xserver-xorg
Note: This Question is unanswered, help us to find answer for this one
221. Which of the following commands allows you to specify the default file mode creation mask?
Answer
Correct Answer:
umask
Note: This Question is unanswered, help us to find answer for this one
222. Which of the following commands is not network-related?
Answer
Correct Answer:
dpkg
Note: This Question is unanswered, help us to find answer for this one
223. Which of the following utilities will not help you convert a video from one format to another under Linux?
Answer
Correct Answer:
avconvert
Note: This Question is unanswered, help us to find answer for this one
224. Which of the following realtime systems uses Linux?
Answer
Correct Answer:
Wind River Real-Time Core
Note: This Question is unanswered, help us to find answer for this one
225. Which of the following commands is used in conjunction with slocate?
Answer
Correct Answer:
updatedb
Note: This Question is unanswered, help us to find answer for this one
226. What is the interface used to allow user applications to use the video hardware without going through the X server called?
Answer
Correct Answer:
Direct Rendering Infrastructure
Note: This Question is unanswered, help us to find answer for this one
227. What is the command used to upgrade all installed packages on a machine running Ubuntu?
Note: This Question is unanswered, help us to find answer for this one
239. Correct form of Reverse DNS Lookups ?
Answer
Correct Answer:
nslookup 134.170.185.46
Note: This Question is unanswered, help us to find answer for this one
240. Which of these media players does not run on Linux ?
Answer
Correct Answer:
Winamp
Note: This Question is unanswered, help us to find answer for this one
241. Command for Change file owner and group ?
Answer
Correct Answer:
chown
Note: This Question is unanswered, help us to find answer for this one
242. What is the correct value for (rwxrwxrwx) No restrictions on permissions. Anybody may do anything.
Answer
Correct Answer:
777
Note: This Question is unanswered, help us to find answer for this one
243. Can you make hard links to directories just as you can to ordinary files?
Answer
Correct Answer:
Sometimes, depending on file system restrictions.
Note: This Question is unanswered, help us to find answer for this one
244. Which file would be returned by ls File[A5] ?
Answer
Correct Answer:
FileA
Note: This Question is unanswered, help us to find answer for this one
245. What will you get if you try to read from the pseudo-device /dev/zero?
Answer
Correct Answer:
An infinite string of nulls ('\0', ASCII 0x00).
Note: This Question is unanswered, help us to find answer for this one
246. In BASH scripts the symbols "<<" indicate...
Answer
Correct Answer:
a "here" document
Note: This Question is unanswered, help us to find answer for this one
247. To block/allow regular users to send write messages to your session, you use:
Answer
Correct Answer:
mesg
Note: This Question is unanswered, help us to find answer for this one
248. newgrp will:
Answer
Correct Answer:
change user's group ID (GID)
Note: This Question is unanswered, help us to find answer for this one
249. In chgrp command, the letter you use to add a sticky bit (e.g., to prevent removal of files by non-owner from a directory) is:
Answer
Correct Answer:
t
Note: This Question is unanswered, help us to find answer for this one
250. The last privileged port (any port that can't be opened by anyone else but the root user) is:
Answer
Correct Answer:
1023
Note: This Question is unanswered, help us to find answer for this one
251. Will tar extract information about file permissions?
Answer
Correct Answer:
Yes, if "-p" specified or is root.
Note: This Question is unanswered, help us to find answer for this one
252. Can `ip` in iproute2 take multiple commands in a row?
Answer
Correct Answer:
Yes, using `ip -batch`
Note: This Question is unanswered, help us to find answer for this one
253. What file will show you how the kernel was started?
Answer
Correct Answer:
/proc/cmdline
Note: This Question is unanswered, help us to find answer for this one
254. Apart from SIGKILL, which other signal cannot be caught nor ignored?
Answer
Correct Answer:
SIGSTOP
Note: This Question is unanswered, help us to find answer for this one
255. What is the default delimiter for the command "cut"?
Answer
Correct Answer:
Note: This Question is unanswered, help us to find answer for this one
256. A user has a file called OriginalFile, and then creates a hard link to it by executing the following command (brackets not part of command): [ cp -l OriginalFile CopyOfFile ] Which of the following are true?
Answer
Correct Answer:
Editing CopyOfFile will affect OriginalFile
Note: This Question is unanswered, help us to find answer for this one
257. What is the result of echo '$MyVar' ?
Answer
Correct Answer:
$MyVar
Note: This Question is unanswered, help us to find answer for this one
258. modprobe -d:
Answer
Correct Answer:
specifies the directory where modules can be found.
Note: This Question is unanswered, help us to find answer for this one
259. The equivalent to whatis command is:
Answer
Correct Answer:
man -f
Note: This Question is unanswered, help us to find answer for this one
260. What are the six fields of /etc/fstab?
Answer
Correct Answer:
Device, mount point, file system type, mount options, dump frequency, fsck pass number.
Note: This Question is unanswered, help us to find answer for this one
261. in terms of system calls, when bash process executes cat </tmp/input command it does the following:
Answer
Correct Answer:
issues a system call to create a new copy of itself, in that copy it issues a system call to close the lowest file descriptor, then issues a system call to open /tmp/input and finally issues the exec system call to execute the cat program
Note: This Question is unanswered, help us to find answer for this one
262. mklost+found:
Answer
Correct Answer:
creates a lost+found directory in the current working directory
Note: This Question is unanswered, help us to find answer for this one
263. The ____ command will display LVM volume groups.
Answer
Correct Answer:
vgdisplay
Note: This Question is unanswered, help us to find answer for this one
264. The cksum command will read from standard input if:
Answer
Correct Answer:
'-' is used
Note: This Question is unanswered, help us to find answer for this one
265. What does the command "set $(date)" do?
Answer
Correct Answer:
It parses the system date into command line parameters $1 - $6
Note: This Question is unanswered, help us to find answer for this one
266. Which command will tell you how long a system has been up and running since it was last booted?
Answer
Correct Answer:
All answers are correct.
Note: This Question is unanswered, help us to find answer for this one
267. Which one of these lines will check if the directory 'foo' exists and create it if it doesn't?
Answer
Correct Answer:
All of them.
Note: This Question is unanswered, help us to find answer for this one
268. what the "netstat -lx" command do?
Answer
Correct Answer:
Listing all Listening Ports
Note: This Question is unanswered, help us to find answer for this one
269. In a file delimited by commas, what command will print the 3rd column of data:
Answer
Correct Answer:
awk -F, '{print $3}'
Note: This Question is unanswered, help us to find answer for this one
270. In POSIX-compatible shell, what will you see if you enter "echo foo*" when there are no files beginning with "foo" in the current directory?
Answer
Correct Answer:
foo*
Note: This Question is unanswered, help us to find answer for this one
271. What is the maximum size of an ext3 file system?
Note: This Question is unanswered, help us to find answer for this one
272. To create hard-links instead of copies with the cp command, you use:
Answer
Correct Answer:
-l
Note: This Question is unanswered, help us to find answer for this one
273. Which command is used for initializing physical volume(hard disk, or partition) for LVM usage?
Answer
Correct Answer:
pvcreate
Note: This Question is unanswered, help us to find answer for this one
274. /bin/true is a command whose exit status is always:
Answer
Correct Answer:
0
Note: This Question is unanswered, help us to find answer for this one
275. To format a device as an ext3 (journaled) Linux extended filesystem, you use the commands:
Answer
Correct Answer:
all are correct
Note: This Question is unanswered, help us to find answer for this one
276. As a non-privileged user, if you use 'nice', it will:
Answer
Correct Answer:
execute a command with lower priority
Note: This Question is unanswered, help us to find answer for this one
277. If no filesystems are specified on the command line, and the _____ option is not specified, then the command "fsck" will default to checking filesystems in "/etc/fstab" serial order.
Answer
Correct Answer:
-A
Note: This Question is unanswered, help us to find answer for this one
278. How are typical native code debuggers implemented?
Answer
Correct Answer:
By a special system call that allows one process to control and trace execution of another.
Note: This Question is unanswered, help us to find answer for this one
279. what the "netstat -ac 5 | grep tcp" command do?
Answer
Correct Answer:
Displaying Promiscuous mode with -ac switch, netstat print the selected information or refresh screen every five second. Default screen refresh in every second.
Note: This Question is unanswered, help us to find answer for this one
280. Man pages are written using what markup language?
Answer
Correct Answer:
TROFF
Note: This Question is unanswered, help us to find answer for this one
281. What is the file /etc/nsswitch.conf?
Answer
Correct Answer:
facility that provides a variety of sources for common configuration databases and name resolution mechanisms
Note: This Question is unanswered, help us to find answer for this one
282. What is cgroups ?
Answer
Correct Answer:
Linux kernel feature to control resource usage
Note: This Question is unanswered, help us to find answer for this one
283. Which of the following commands shows routing table information?
Answer
Correct Answer:
ip route show
Note: This Question is unanswered, help us to find answer for this one
284. What is the purpose of the "tset" command?
Answer
Correct Answer:
To identify and initialize a terminal.
Note: This Question is unanswered, help us to find answer for this one
285. The ________ command can be used to "kill" the 'X server'.
Answer
Correct Answer:
Ctrl + Alt + Bksp
Note: This Question is unanswered, help us to find answer for this one
286. You need which of the following access modes in order to cd to a system directory?
Answer
Correct Answer:
x
Note: This Question is unanswered, help us to find answer for this one
287. What does the Linux "yes" command do?
Answer
Correct Answer:
It outputs an infinite series of 'y's (or the word of your choice).
Note: This Question is unanswered, help us to find answer for this one
288. What is the expected output of the following command: unset x; test -z $x && echo 1
Answer
Correct Answer:
1
Note: This Question is unanswered, help us to find answer for this one
289. How find the current system runlevel?
Answer
Correct Answer:
runlevel
Note: This Question is unanswered, help us to find answer for this one
290. nfsstat will...
Answer
Correct Answer:
type statistics on NFS and remote procedure call (RPC) activity for both client and server systems
Note: This Question is unanswered, help us to find answer for this one
291. To do unlimited precision arithmetic calculations from the shell, you use:
Answer
Correct Answer:
bc
Note: This Question is unanswered, help us to find answer for this one
292. newaliases will:
Answer
Correct Answer:
rebuild the mail aliases database that reside in /etc/aliases
Note: This Question is unanswered, help us to find answer for this one
293. 'mv -u' will:
Answer
Correct Answer:
not remove a file or link if its modification date is the same as or newer than that of its replacement
Note: This Question is unanswered, help us to find answer for this one
294. Running "man --locale=LLL" instructs man to override the value of which of these functions?
Answer
Correct Answer:
setlocale()
Note: This Question is unanswered, help us to find answer for this one
295. Which of the following is a way to update mlocate's index?
Answer
Correct Answer:
updatedb
Note: This Question is unanswered, help us to find answer for this one
296. The acronym WINE stands for:
Answer
Correct Answer:
Wine is not an Emulator
Note: This Question is unanswered, help us to find answer for this one
297. what the "netstat -l" command do?
Answer
Correct Answer:
listing all active listening ports connections
Note: This Question is unanswered, help us to find answer for this one
298. In the command 'mv source target', if source is a directory and target is an existing directory, the result will be to:
Answer
Correct Answer:
move 'source' directory to be a subdirectory of 'target' directory
Note: This Question is unanswered, help us to find answer for this one
299. To format a device as a Linux second extended filesystem (ext2), you use the command:
Answer
Correct Answer:
Both mke2fs and mkfs.ext2
Note: This Question is unanswered, help us to find answer for this one
300. What does permission 641 (octal) mean?
Answer
Correct Answer:
Owner can read and write; group can read; other can execute
Note: This Question is unanswered, help us to find answer for this one
301. 'mktemp -d' will:
Answer
Correct Answer:
create a unique temporary directory (e.g., for script's commands usage)
Note: This Question is unanswered, help us to find answer for this one
302. In a BASH script this command line parameter contains the scripts own name:
Answer
Correct Answer:
$0
Note: This Question is unanswered, help us to find answer for this one
303. The backslash on the command line indicates
Answer
Correct Answer:
a one-character escape
Note: This Question is unanswered, help us to find answer for this one
304. what the "netstat -a" command do?
Answer
Correct Answer:
Listing all ports (both TCP and UDP)
Note: This Question is unanswered, help us to find answer for this one
305. What will "cat /proc/mdstat" tell you?
Answer
Correct Answer:
The state of your RAID file system (if any).
Note: This Question is unanswered, help us to find answer for this one
306. What happens if you try to write to /dev/null and /dev/zero?
Answer
Correct Answer:
Nothing.
Note: This Question is unanswered, help us to find answer for this one
307. In bash you can use these quote marks for command substitution.
Answer
Correct Answer:
backquotes ` `
Note: This Question is unanswered, help us to find answer for this one
308. The user smith issued the egrep "^[[:upper:]]" words.txt command. What does this command do?
Answer
Correct Answer:
displays all lines in the words.txt file that begin with an uppercase letter
Note: This Question is unanswered, help us to find answer for this one
309. Which of the following commands can be used to change the run level?
Answer
Correct Answer:
init
Note: This Question is unanswered, help us to find answer for this one
310. Which of the following commands will correctly display the version of the Linux kernel running?
Answer
Correct Answer:
uname -r
Note: This Question is unanswered, help us to find answer for this one
311. Given that the ip command is installed, what is the effect of the command ip a ls
Answer
Correct Answer:
It lists the defined interfaces and the addresses associated with those interfaces.
Note: This Question is unanswered, help us to find answer for this one
312. Which of the following files 'probably' contains the default "windows manager settings"?
Answer
Correct Answer:
/etc/X11/xinit/xinitrc
Note: This Question is unanswered, help us to find answer for this one
313. Reset will...
Answer
Correct Answer:
clear your session's screen (terminal)
Note: This Question is unanswered, help us to find answer for this one
314. What source control system does the Linux kernel use?
Answer
Correct Answer:
git
Note: This Question is unanswered, help us to find answer for this one
315. Information about modules, like module dependency, and where certain types of modules reside in the filesystem, is found in:
Answer
Correct Answer:
/etc/modules.conf
Note: This Question is unanswered, help us to find answer for this one
316. To send a file to the printer spool queue, you use the command:
Answer
Correct Answer:
lpr
Note: This Question is unanswered, help us to find answer for this one
317. "Run Level Zero (0)" stands for _____.
Answer
Correct Answer:
Halt
Note: This Question is unanswered, help us to find answer for this one
318. What program is launched by the kernel at system start up first?
Answer
Correct Answer:
/sbin/init
Note: This Question is unanswered, help us to find answer for this one
319. If the system is not in runlevel 0 or 6, before performing a power-off operation, the poweroff command will execute:
Answer
Correct Answer:
shutdown -h
Note: This Question is unanswered, help us to find answer for this one
320. 'mkdir -m 444 any' will:
Answer
Correct Answer:
create a read-only directory named any
Note: This Question is unanswered, help us to find answer for this one
321. How do you make a list of all filenames in the /tmp directory that the contain the text "user", regardless of case?
Answer
Correct Answer:
ls /tmp | grep -i user
Note: This Question is unanswered, help us to find answer for this one
322. What is not part of the Linux Kernel?
Answer
Correct Answer:
All of these
Note: This Question is unanswered, help us to find answer for this one
323. To write a message to all users (on their terminals) over a network, you use:
Answer
Correct Answer:
wall
Note: This Question is unanswered, help us to find answer for this one
324. Single User Mode equivalent to _____.
Answer
Correct Answer:
run level 1
Note: This Question is unanswered, help us to find answer for this one
325. rev will:
Answer
Correct Answer:
reverse the order of characters read from standard input and type the result stream of characters to standard output
Note: This Question is unanswered, help us to find answer for this one
326. How do you find all files in /etc which end in .conf?
Answer
Correct Answer:
find /etc -name "*.conf"
Note: This Question is unanswered, help us to find answer for this one
327. options (switches) to the ps command may start with:
Answer
Correct Answer:
all are correct
Note: This Question is unanswered, help us to find answer for this one
328. Can I have swap partition and swap file activated at the same time?
Answer
Correct Answer:
Yes
Note: This Question is unanswered, help us to find answer for this one
329. What does it mean when a variable is unbound?
Answer
Correct Answer:
It is not defined.
Note: This Question is unanswered, help us to find answer for this one
330. pwconv will...
Answer
Correct Answer:
convert entries in /etc/passwd (un-shadowed) into shadowed entries in /etc/shadow
Note: This Question is unanswered, help us to find answer for this one
331. For what purposes can socat be used?
Answer
Correct Answer:
All of these
Note: This Question is unanswered, help us to find answer for this one
332. What is "vmlinuz"?
Answer
Correct Answer:
It is a "compressed Linux kernel".
Note: This Question is unanswered, help us to find answer for this one
333. How to display current iptables rules?
Answer
Correct Answer:
iptables -L
Note: This Question is unanswered, help us to find answer for this one
334. What is the uid of root?
Answer
Correct Answer:
0
Note: This Question is unanswered, help us to find answer for this one
335. Executing the command "init 6" will _____.
Answer
Correct Answer:
reboot the system
Note: This Question is unanswered, help us to find answer for this one
336. What binary format do Linux Executables use?
Answer
Correct Answer:
ELF
Note: This Question is unanswered, help us to find answer for this one
337. Write a command to list all files with 5 characters in the name.
Answer
Correct Answer:
ls ?????
Note: This Question is unanswered, help us to find answer for this one
338. What, according to bc, is 2^2?
Answer
Correct Answer:
4
Note: This Question is unanswered, help us to find answer for this one
339. The mkraid command will:
Answer
Correct Answer:
initialize a new RAID array, destroying any existing data on the disks used
Note: This Question is unanswered, help us to find answer for this one
340. To search one or more files for matching lines, which command may be used?
Answer
Correct Answer:
All of these
Note: This Question is unanswered, help us to find answer for this one
341. SSH uses _____ to authenticate remote computers.
Answer
Correct Answer:
public key cryptography
Note: This Question is unanswered, help us to find answer for this one
342. Typing the "cd" command at the shell prompt will take you to the _____.
Answer
Correct Answer:
$HOME
Note: This Question is unanswered, help us to find answer for this one
343. _____ is not a 'Terminal Emulator'.
Answer
Correct Answer:
gdm
Note: This Question is unanswered, help us to find answer for this one
344. To create one or more directories with the mkdir command, which permissions in the directory's parent directory do you need?
Answer
Correct Answer:
write
Note: This Question is unanswered, help us to find answer for this one
345. Which Run Level provides "Full multiuser mode with network and X display manager"?
Answer
Correct Answer:
Run Level 5
Note: This Question is unanswered, help us to find answer for this one
346. modinfo [options] ofile' will:
Answer
Correct Answer:
print information about kernel module ofile
Note: This Question is unanswered, help us to find answer for this one
347. In a ps command output, the PPID displays the:
Answer
Correct Answer:
Parent process ID
Note: This Question is unanswered, help us to find answer for this one
348. GRUB stands for _____.
Answer
Correct Answer:
Grand Unified Boot Loader
Note: This Question is unanswered, help us to find answer for this one
349. To see the kernel routing tables, you do:
Answer
Correct Answer:
route or netstat -r
Note: This Question is unanswered, help us to find answer for this one
350. 'mv -f' will:
Answer
Correct Answer:
even if the target file exists, the operation will be carried out (and no warning messages on restricted access modes will be printed)
Note: This Question is unanswered, help us to find answer for this one
351. How do you show all processes being run by a particular user?
Answer
Correct Answer:
top -U [USERNAME]
Note: This Question is unanswered, help us to find answer for this one
352. To display contents of files on standard output, you could use the command:
Answer
Correct Answer:
All of these
Note: This Question is unanswered, help us to find answer for this one
353. How do you redirect stderr to stdout?
Answer
Correct Answer:
Using 2>&1
Note: This Question is unanswered, help us to find answer for this one
354. modprobe...
Answer
Correct Answer:
attempts to load a kernel module along with all its depended modules
Note: This Question is unanswered, help us to find answer for this one
355. What does the $ represent within the context of a shell command?
Answer
Correct Answer:
The string after the $ will take on the value of the environment variable with the same name.
Note: This Question is unanswered, help us to find answer for this one
356. What does the "uname" command do?
Answer
Correct Answer:
print system information
Note: This Question is unanswered, help us to find answer for this one
357. what makes the command "netstat -s"
Answer
Correct Answer:
Displays statistics by protocol. By default, statistics are shown for the TCP, UDP, ICMP, and IP protocols.
Note: This Question is unanswered, help us to find answer for this one
358. command1 | command2 will?
Answer
Correct Answer:
Output command1 wil be input of command2
Note: This Question is unanswered, help us to find answer for this one
359. To report the amount of free disk space available on all mounted file systems you use the command:
Answer
Correct Answer:
df
Note: This Question is unanswered, help us to find answer for this one
360. Is it possible to increase SWAP space without rebooting?
Answer
Correct Answer:
Yes if you create a swap file
Note: This Question is unanswered, help us to find answer for this one
361. Why hasn't ZFS been added to the Linux kernel?
Answer
Correct Answer:
Sun's implementation uses a license incompatible with the GPL
Note: This Question is unanswered, help us to find answer for this one
362. What flag makes "ls -l" print file sizes in human readable format (e.g. 1K, 231M, 2G, etc)?
Answer
Correct Answer:
-h
Note: This Question is unanswered, help us to find answer for this one
363. You want to load the main kernel module for USB support. Which command would help you achieve this task?
Answer
Correct Answer:
modprobe usbcore
Note: This Question is unanswered, help us to find answer for this one
364. If DDD is a non empty directory, and you execute 'rmdir DDD', it will:
Answer
Correct Answer:
produce an error
Note: This Question is unanswered, help us to find answer for this one
365. lsof command means:
Answer
Correct Answer:
List Open Files
Note: This Question is unanswered, help us to find answer for this one
366. When does /tmp normally get cleaned out?
Answer
Correct Answer:
Every time the system is booted.
Note: This Question is unanswered, help us to find answer for this one
367. True or false: The Linux OS is not affected by malware.
Answer
Correct Answer:
False
Note: This Question is unanswered, help us to find answer for this one
368. _____ command starts the default desktop environment.
Answer
Correct Answer:
startx
Note: This Question is unanswered, help us to find answer for this one
369. In a date +format, you add the hour in 24 hours format using:
Answer
Correct Answer:
%H
Note: This Question is unanswered, help us to find answer for this one
370. If a host is called HHH, 'rstat HHH' will:
Answer
Correct Answer:
all are correct
Note: This Question is unanswered, help us to find answer for this one
371. printenv will:
Answer
Correct Answer:
type values of environment variables
Note: This Question is unanswered, help us to find answer for this one
372. What is the maximum length of a file name on Linux?
Answer
Correct Answer:
It depends on the file system.
Note: This Question is unanswered, help us to find answer for this one
373. Which of the following accurately describes a "ping?"
Answer
Correct Answer:
sends ICMP packets to target device/server to verify if it's online.
Note: This Question is unanswered, help us to find answer for this one
374. If you use the rm command to accidentally delete a file, how can you get the file back?
Answer
Correct Answer:
You cannot get the file back.
Note: This Question is unanswered, help us to find answer for this one
375. What does "chmod 755 file" accomplish?
Answer
Correct Answer:
Makes the file read/write/execute by the owner, read/execute by group and other.
Note: This Question is unanswered, help us to find answer for this one
376. mount -a' will load all filesystems listed in:
Answer
Correct Answer:
/etc/fstab
Note: This Question is unanswered, help us to find answer for this one
377. Which return value from an ioctl request indicates success?
Answer
Correct Answer:
0
Note: This Question is unanswered, help us to find answer for this one
378. How to reveal detailed information about CPU?
Answer
Correct Answer:
cat /proc/cpuinfo
Note: This Question is unanswered, help us to find answer for this one
379. Which of the following is not an editor?
Answer
Correct Answer:
expr
Note: This Question is unanswered, help us to find answer for this one
380. How would you create an alias for the cat command?
Answer
Correct Answer:
alias bkw=cat
Note: This Question is unanswered, help us to find answer for this one
381. the '-r' switch to the mount command will:
Answer
Correct Answer:
mount a filesystem as read-only
Note: This Question is unanswered, help us to find answer for this one
382. LILO is _____.
Answer
Correct Answer:
a boot loader
Note: This Question is unanswered, help us to find answer for this one
383. What does the Linux "no" command do?
Answer
Correct Answer:
Nothing; it doesn't exist.
Note: This Question is unanswered, help us to find answer for this one
384. What is a zombie process?
Answer
Correct Answer:
A zombie process is a process which has terminated, but whose parent had not yet read its exit status.
Note: This Question is unanswered, help us to find answer for this one
385. To access the value of an environment variable, we _____.
Answer
Correct Answer:
add the dollar ($) symbol before the variable name
Note: This Question is unanswered, help us to find answer for this one
386. Consider using the command "cd /a/b/c", then executing "cd ..". What does this last command do?
Answer
Correct Answer:
changes to /a/b directory
Note: This Question is unanswered, help us to find answer for this one
387. LVM is...
Answer
Correct Answer:
Logical Volume Manager
Note: This Question is unanswered, help us to find answer for this one
388. The command "free" reports on:
Answer
Correct Answer:
memory
Note: This Question is unanswered, help us to find answer for this one
389. Which tool is similar to find except that it uses an index to search?
Answer
Correct Answer:
locate
Note: This Question is unanswered, help us to find answer for this one
390. The command du -h ~
Answer
Correct Answer:
lists the size of all files within your $HOME with sizes in human readable form
Note: This Question is unanswered, help us to find answer for this one
391. To transfer files in an insecure way to and from a remote network site host, you use the command:
Answer
Correct Answer:
ftp
Note: This Question is unanswered, help us to find answer for this one
392. /etc/resolv.conf is ...
Answer
Correct Answer:
The DNS resolver configuration file
Note: This Question is unanswered, help us to find answer for this one
393. What command can be used to delete a directory, recursively searching for files and other directories and deleting them?
Answer
Correct Answer:
rm -r
Note: This Question is unanswered, help us to find answer for this one
394. To read one or more files and type them on standard output, you use:
Answer
Correct Answer:
cat
Note: This Question is unanswered, help us to find answer for this one
395. On Red Hat Linux and its derivatives, which of the following commands will be appropriate to check whether a particular "package" is installed or not?
Answer
Correct Answer:
rpm -qa
Note: This Question is unanswered, help us to find answer for this one
396. Add this symbol to a command to run it in the background
Answer
Correct Answer:
&
Note: This Question is unanswered, help us to find answer for this one
397. How do you view the documentation for the command 'kill' in the Linux terminal?
Answer
Correct Answer:
man kill
Note: This Question is unanswered, help us to find answer for this one
398. LILO...
Answer
Correct Answer:
is a boot loader that can boot Linux
Note: This Question is unanswered, help us to find answer for this one
399. As a privileged user, you may set the hostname with the command:
Answer
Correct Answer:
hostname
Note: This Question is unanswered, help us to find answer for this one
400. What is swap?
Answer
Correct Answer:
Swap space is the area on a hard disk which is part of the Virtual Memory of your machine (Swap+RAM)
Note: This Question is unanswered, help us to find answer for this one
401. Which answer assists you in finding help on the whois command?
Answer
Correct Answer:
man whois
Note: This Question is unanswered, help us to find answer for this one
402. To repeat the last command in the bash shell history, type...
Answer
Correct Answer:
!!
Note: This Question is unanswered, help us to find answer for this one
403. What does it means when the ps commands shows a 'Z' in the status column for a process?
Answer
Correct Answer:
The process is a zombie process.
Note: This Question is unanswered, help us to find answer for this one
404. What is GNOME ?
Answer
Correct Answer:
A desktop environment and graphical user interface that runs on top of a computer operating system.
Note: This Question is unanswered, help us to find answer for this one
405. what the "cd /" command do?
Answer
Correct Answer:
Change into the root directory
Note: This Question is unanswered, help us to find answer for this one
406. Which firewall is most commonly used on Linux?
Answer
Correct Answer:
iptables
Note: This Question is unanswered, help us to find answer for this one
407. What is the right command to save file and exit in Vim?
Answer
Correct Answer:
:wq
Note: This Question is unanswered, help us to find answer for this one
408. _____ is a Linux "desktop environment".
Answer
Correct Answer:
All of these
Note: This Question is unanswered, help us to find answer for this one
409. To query DNS (Internet domain name) servers, you use the command:
Answer
Correct Answer:
nslookup
Note: This Question is unanswered, help us to find answer for this one
410. Ubuntu is based on...
Answer
Correct Answer:
Debian
Note: This Question is unanswered, help us to find answer for this one
411. Fedora Linux uses _____ packages.
Answer
Correct Answer:
rpm
Note: This Question is unanswered, help us to find answer for this one
412. Executing "pwd" in shell will return:
Answer
Correct Answer:
Current directory
Note: This Question is unanswered, help us to find answer for this one
413. How do you activate the noclobber shell option?
Answer
Correct Answer:
set -o noclobber
Note: This Question is unanswered, help us to find answer for this one
414. 'mkfs' is used to:
Answer
Correct Answer:
create a filesystem on a device (such as a hard disk partition)
Note: This Question is unanswered, help us to find answer for this one
415. What makes up a Linux kernel?
Answer
Correct Answer:
all of these
Note: This Question is unanswered, help us to find answer for this one
416. Which directory contains all the files needed to boot the Linux system?
Answer
Correct Answer:
/boot
Note: This Question is unanswered, help us to find answer for this one
417. What will show you all the subdirectories of the current directory?
Answer
Correct Answer:
ls
Note: This Question is unanswered, help us to find answer for this one
418. The Linux Kernel was written by?
Answer
Correct Answer:
Linus Torvalds
Note: This Question is unanswered, help us to find answer for this one
419. what the command "cd .." do
Answer
Correct Answer:
one level up from the current directory
Note: This Question is unanswered, help us to find answer for this one
420. What does the pwd command do?
Answer
Correct Answer:
It prints the path of the current working directory
Note: This Question is unanswered, help us to find answer for this one
421. If you wanted to execute a shell command in the background, which character would you put at the end of the command line?
Answer
Correct Answer:
&
Note: This Question is unanswered, help us to find answer for this one
422. SSH stands for _____.
Answer
Correct Answer:
Secure Shell
Note: This Question is unanswered, help us to find answer for this one
423. mknod can create special file (used for sending or receiving data) of type:
Answer
Correct Answer:
all are correct
Note: This Question is unanswered, help us to find answer for this one
424. The loaded modules in the kernel are listed in /proc/modules. You can get this list using the command:
Answer
Correct Answer:
lsmod
Note: This Question is unanswered, help us to find answer for this one
425. To start another shell under the current shell you use the command:
Answer
Correct Answer:
All of these
Note: This Question is unanswered, help us to find answer for this one
426. The netstat command give information on:
Answer
Correct Answer:
all are correct
Note: This Question is unanswered, help us to find answer for this one
427. With which userspace is Linux typically paired?
Answer
Correct Answer:
GNU
Note: This Question is unanswered, help us to find answer for this one
428. what makes the command cd ../../
Answer
Correct Answer:
Traverse two directories up the directory tree.
Note: This Question is unanswered, help us to find answer for this one
429. uname -a will output...
Answer
Correct Answer:
All of the answers are correct.
Note: This Question is unanswered, help us to find answer for this one
430. To print the first 10 lines of one or more files to the standard output, you use the command:
Answer
Correct Answer:
head
Note: This Question is unanswered, help us to find answer for this one
431. The behavior of the system for each "runlevel" is available in the _____ file.
Answer
Correct Answer:
/etc/inittab
Note: This Question is unanswered, help us to find answer for this one
432. The run level in a system can be configured in the file _____.
Answer
Correct Answer:
/etc/inittab
Note: This Question is unanswered, help us to find answer for this one
433. Which is an example of a shell comment?
Answer
Correct Answer:
mkdir text # make a directory
Note: This Question is unanswered, help us to find answer for this one
434. To use chown recursively, instead of using _recursive you can use:
Answer
Correct Answer:
-R
Note: This Question is unanswered, help us to find answer for this one
435. The jobs command
Answer
Correct Answer:
lists background jobs
Note: This Question is unanswered, help us to find answer for this one
436. What does GRUB stand for?
Answer
Correct Answer:
Grand Unified Bootloader
Note: This Question is unanswered, help us to find answer for this one
437. The at command allows you to execute a command at:
Answer
Correct Answer:
a certain date
Note: This Question is unanswered, help us to find answer for this one
438. What does the following line mean when it is run in a script '#!/bin/bash'?
Answer
Correct Answer:
It makes sure that the script runs in the bash shell.
Note: This Question is unanswered, help us to find answer for this one
439. What will you get if you try to read from the pseudo-device /dev/null?
Answer
Correct Answer:
Nothing.
Note: This Question is unanswered, help us to find answer for this one
440. What is the linux mascot?
Answer
Correct Answer:
Penguin
Note: This Question is unanswered, help us to find answer for this one
