What is true about the file /etc/localtime?

Which parameter must be passed to ifconfig to activate a previously inactive network interface? (Specify the parameter only without any command, path or additional options)

Which of the following fields are available in both the global /etc/crontab file as well as in user-specific crontab files? (Select TWO correct answers)

What is the lowest numbered unprivileged TCP port? (Specify the number in digits only.)

Which of the following signals is sent to a process when the key combination CTRL+C is pressed on the keyboard?

Which of the following commands lists the dependencies of a given dpkg package?

Which keyword must be listed in the hosts option of the Name Service Switch configuration file in order to make host lookups consult the /etc/hosts file?

Which world-writable directory should be placed on a separate partition inorder to prevent users from being able to fill up the / filesystem? (Specify the full path to the directory.)

Which of the following keywords can be used in the file /etc/resolv.conf? (Choose TWO correct answers.)

Which of the following details is NOT provided in any output from the netstat utility?

Which of the following commands can be used to limit the amount of memory a user may use?

Which of the following are syslog facilities? (Choose TWO correct answers.)

Which of the following commands overwrites the bootloader located on /dev/sda without overwriting the partition table or any data following it?

Which of the following fields can be found in the /etc/group file? (Choose THREE correct answers.)

Which of the following commands kills the process with the PID 123 but allows the process to "clean up" before exiting?

Which commands can be used to change a user's account aging information? (Choose THREE correct answers.)

Where are user specific crontabs stored?

Which character, added to the end of a command, runs that command in the background as a child process of the current shell?

Which of the following commands will help identify a broken router between the local and the remote machine?

Which of the following options for the kernel's command line changes the systemd boot target to rescue.target instead of the default target?

How can the existing environment variable FOOBAR be suppressedfor the execution of the script./myscript only?

Which character starts a comment line in a shell script file?

What command will generate a list of user names from /etc/passwd along with their login shell?

After configuring printing on a Linux server, the administrator sends a test file to one of the printers and it fails to print. What command can be used to display the status of the printer's queue? (Specify ONLY the command without any path or parameters.)

Which of the following commands updates the linker cache of shared libraries?

In the vi editor, which of the following commands will copy the current line into the vi buffer?

When using rpm --verify to check files created during the installation of RPM packages, which ofthe following information is taken into consideration? (Choose THREE correct answers.)

Which variable defines the directories in which a Bash shell searches for executable commands?

What is the default action of the split command on an input file?

Which file specifies the user accounts that can NOT submit jobs via at or batch? (Provide the full path and filename)

Which of the following files, when existing, affect the behavior of the Bash shell? (Choose TWO correct answers.)

Which of the following is correct when talking about mountpoints?

What is the first program that is usually started, at boot time, by the Linux kernel when using SysV init?

Which of the following commands will send output from the program myapp to both standard output (stdout) and the file file1.log?

Which of the following commands can be used to display the inode number of a given file?

When running the command

sed -e "s/a/b/" /tmp/file >/tmp/file

While /tmp/file contains data, why is /tmp/file empty afterwards?