An administrator is looking for an executable file foo. Which of the following commands would
search for foo within directories set in the shell variable, PATH?

In which directory must definition files be placed to add additional repositories to yum?

CORRECT TEXT

An ISP has given an administrator an IP block for use. The block is 192.168.112.64/26. If the
administrator uses the first usable IP for the router that is installed on the network, how many
usable IPs are left? (Please enter the number and not a word)

Which of the following commands will allow an administrator to adjust the number of mounts after
which an existing filesystem will be checked by e2fsck?

Which of the following directories contains additional information about installed packages?

All of the following are Mail Transport Agents EXCEPT:

Which of the following Linux filesystems pre-allocates a fixed number of inodes at filesystems

make/creation time, and does NOT generate them as needed?

An administrator has sent their current vi process with a PID of 1423 to the background on the
command line. Assuming no other processes are in the background, what single command with no
options or parameters will bring the vi process to the foreground?

CORRECT TEXT

An administrator is configuring a secured webserver, however connecting to https://127.0.0.1 is
not working. The administrator runs netstat -ntl, which returns the following output: tcp 0 0
0.0.0.0:80 0.0.0.0:* LISTEN What port should be listening before a successful connection is
possible? (Provide only the numerical value of the port).

An administrator is having some trouble with a disk partition and needs to do maintenance on this
partition. The administrator’s users home directories are on it and several are logged in. Which of
the following commands would disconnect the users and allow the administrator to safely execute
maintenance tasks?