Fedora Linux uses _____ packages.

Ubuntu is based on...

To query DNS (Internet domain name) servers, you use the command:

_____ is a Linux desktop environment'.

What is the right command to save file and exit in Vim?

Which firewall is most commonly used on Linux?

What is the difference between reading the list of disk partitions from /proc/partitions and getting it using fdisk -l?

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)?

When installing a downloaded package on the RedHat-based distribution manual using RPM, what may you have to do first?

What do you need to do before you can perform SSH passwordless logins?

What is the purpose of a Mail Transport Agent (MTA)?