Which of the following programs uses the hosts.allow file to perform its main task of
checking for access control restrictions to system services?

CORRECT TEXT
An administrator has added the following line to /etc/inittab in order to disable the ability to
reboot a Debian system by pressing the Control + Alt + Delete keys simultaneously:
ca:12345:_________:/bin/echo “Rebooting disabled” Please provide the missing string.

CORRECT TEXT
What word will complete an if statement in bash such as the following: if [ -x “$file” ]; then
echo $file _____ (Please provide the missing word only).

CORRECT TEXT
An administrator decides to use xinetd instead of inetd. Now, the administrator needs to
transfer information from /etc/inetd.conf to another file. What file must be created or edited?
(Please specify the full path).

In the following command and its output, echo $$ 12942 which of the following is 12942?

Which of the following commands will print the exit value of the previous command to the
screen in bash?

Which of the following statements about crontab are true? (Select TWO).

CORRECT TEXT
An administrator wants to determine the geometry of a particular window in X, so the
administrator issues the __________ -metric command and then clicks on the window.
(Please enter only a single command and do not enter duplicate answers in this field.)

CORRECT TEXT
The command __________ prints a list of email that is currently in the queue waiting for
delivery. (Please specify the command with or without path or arguments)

CORRECT TEXT
To slave the NTP daemon to an external source, an administrator needs to modify the
______ variable in the /etc/ntp.conf file.