1. Default permissions are determined by the _____.

2. Unix and linux are ____ systems, which allow one user to execute more than one program at a time.

3. If you execute ____, the contents of file1 are sorted and the results are stored in file2.

4. To display the contents of a file called data, use the command ____.

5. To append output to an existing file, you use ____.

6. Freebsd is a(n) _____-based operating system.

7. The ____ command removes duplicate lines from a file.

8. Unix uses the ____ page replacement algorithm.

9. Unix uses a ____ to keep track of which processes are using shared program code.

10. Unix is called a(n) ___________ operating system because it can run on a desktop pc or a server.

11. Unix and linux are operating systems designed to run on ________.

12. In unix/linux, text files and binary files are considered to be ____ files.

13. ____ is not a selection command.

14. What is the user id of a root user?

15. Which command is used for changing the ownership of a file or directory?

16. Which command prints the current working directory ?

17. Which key combination instructs the shell to terminate the session ?

18. The UNIX command

19. The command to take a backup of files and directories on magnetic tape is:

20. Which of the following statements is incorrect regarding processes ?

21. Which of the following statements is not true regarding the grep filter?

22. The command to restore files and directories from magnetic tape is :

23. Which command will you use to see the available routes and their status?

24. Which of the following commands can be used to see the detailed information on how to use a particular command?

25. What communication command provides communication to another user logged on by writing to the bottom of their terminal ?

26. The shell variable that defines internal field separator is.

27. Which of the following commands will you use to send the contents of a file named abc to a user named Raven by mail?

28. What control character signals the end of the file ?

29. Which of the following statements is not true regarding UNIX ?

30. Which error will you see when an NFS client can no longer access mounted file system?

31. The PID of a process is displayed by the command

32. The file descriptor of stdin is

33. What option of the sort filter would you use if you want to save the output on a disk file ?

34. Which command enables you to concatenate files ?

35. What is the number of fields in each line in /etc/passwd file?

36. Which of the following is a responsibility of the system administrator?

37. Which command is used for splitting a file horizontally?

38. Which of the following statements is incorrect regarding the UNIX environment?

39. How can a root user find the password of a user who has forgotten his password?

40. Which of the following statements is incorrect regarding positional parameters ?

41. What would be displayed on the screen if the pwd command is entered when the user is in /usr directory?

42. A single command which lists all files in a directory, distinguishing between a directory, executable and symbolic link files is:

43. Which wild-card matches one character ?

44. Which of the following is not a valid file command ?

45. Which option of the sort filter changes the output to reverse order ?

46. Which of the following shells is typically used for guest logins and in secure systems ?

47. Which command gives location of the first difference between two files ?

48. Which command gives all differences between two files ?

49. Consider the following file listing of file abc1 for a user abc -rw------- 1 abc student 10 jan 10:39 abc1 What inference would you make regarding the file access permissions ?

50. Which of the following is the only filter?

51. By which command a user can add a password for his login name?

52. The executable file name for the Bourne shell is :

53. Which file contains the commands that the system executes when a user logs in?

54. Which option of the sort filter folds lower case characters to upper case ?

55. The user passwords are kept in which file on most Unix systems?

56. Which character would be used in the grep filter to specify a pattern which consists of any one of a set of characters?

57. Which option of the grep filter prints out all those lines that do not match the pattern specified by the regular expression ?

58. Which character of the grep filter specifies that the pattern preceding it must occur at the end of each line ?

59. Which screen manipulation command sets the screen back to normal?

60. You want to specifically search for the character [ . What character(s) would you use in the expression to achieve this ?

61. The command rm -r project

62. Highlight the incorrect statement regarding the uniq command :

63. By which screen manipulation command can you specify the coordinates for the cursor position ?

64. The find command :

65. You are writing a shell script.For a given condition, you want to terminate a loop. Which command will you use ?

66. Which filter is used to copy the standard input to the standard output and also to a disk file ?

67. Which command would you use if you want to display selective fields from a file ?

68. Which file contains the commands run by all users at login?

69. What is the command that can print lines of 1st file matching with 2nd file ?

70. Which of the following is not a filter ?

71. You want to declare a variable vs with the value hello. Which of the following declarations is correct ?

72. What information does the who am i command display?

73. UNIX is an example of :

74. The number of arguments can be known by which variable ?

75. What communication command allows a user to communicate with another user logged on by splitting the screen and providing two way communication ?

76. You have two variables, v1 and v2. You want to assign the value of v2 to v1.Which of the following declarations is correct ?

77. Which command is used to run a command at a specified time ?

78. In which of the following high level languages most of the UNIX is written?

79. What is the number of standard file pointers in UNIX?

80. What is the default UNIX prompt?

81. Which option of the uniq command would you use to display lines with only one occurence?

82. Which command invokes a text editor ?

83. What is the file descriptor for the standard output file ?

84. Which of the following statements is incorrect regarding variables?

85. You want to search for the pattern 'Newa' or 'Newb' or 'Newc'. Which regular expression will you use with the grep command ?

86. Which of the following commands can be used to view the calendar of April 2007?

87. In UNIX , shell is a program which :

88. UNIX offers the following benefits :

89. Study the following statements and select the incorrect one :

90. What is the correct command to delete all files with two character file-names from the directory /user/group2 ?

91. Who can change the password of a user account?

92. Which of the following statements is incorrect ?

93. Which command would make the scope of a shell variable global to the subshells ?

94. Pipes is/are :

95. Using which command can you move to a different directory?

96. Which command will delete a directory only if it is empty ?

97. Which command will you use to see your current group?

98. Which of the following characters can be used to run multiple commands on a single line?

99. Which of the following is incorrect about the restrictions imposed by the restricted shell ?

100. With regard to UNIX, a process is :