Which character matches the end of a line in a regular expression?

A. !

B. ^

C. $

D. ?

If one or more CPUs in a system is extremely busy (less than 25% idle) but the run queue is relatively low, what might the system need to improve performance?

A. Faster CPUs

B. More CPUs

C. More memory

D. Faster hard drives

Which special device provides a place for redirecting unneeded data?

A. /dev/null

B. /dev/zero

C. /dev/urandom

D. /dev/blank

RHEL is a popular distribution from which core tree?

A. Fedora

B. Linux

C. Debian

D. Slackware

The ps 璭f command is from which UNIX variant?

A. AIX

B. System V

C. Linux

D. BSD

What is the name of the Linux mascot?

A. Linus

B. Bell

C. Tux

D. Dennis Ritchie

In a bash script, which of the following is the most common way to send output to the screen?

A. echo

B. write

C. send

D. print

Which native system commands can be used to get help on a standard Linux system?

A. Google

B. Info

C. Man

D. Stack Overflow

Where will the whereis command look to locate files?

A. The system binary directories

B. Your $PATH

C. Root's $PATH

D. Recursively starting at/

The fstab file contains what information?

A. The runlevel of the system

B. Currently mounted filesystems

C. Filesystems to mount at boot

D. NFS file systems mounted by users