Which of the following is pool.ntp.org?

Which of the following is the difference between the –remove and the –purge action with the dpkg
command?

Which of the following is the process ID number of the init program?

Which of the following directories in a user’s home contains configuration files and key rings for
GPG?

Pressing the Ctrl-C combination on the keyboard while a command is executing in the foreground
sends which of following signal codes?

An administrator has just added a CD-ROM drive (/dev/hdd) to a system and added it to the
administrator’s fstab. Typically the administrator can use which of the following commands to
mount media in that drive to /mnt/cdrom?

To what environment variable will an administrator assign or append a value if the administrator
needs to tell the dynamic linker to look in a build directory for some of a program’s shared
libraries?

Which of the following lines from /etc/X11/xorg.conf indicates that fonts can be found on a font
server?

An administrator wishes to kill a process with a PID of 123. Which of the following commands will
allow the process to “clean up” before exiting?

What command with all options and/or parameters will send the signal USR1 to any executing
process of program apache2?