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Updated Dec 07, 2024 39 Questions 3 Pages

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Question 1 Selectable Answer

To prevent a specific user from scheduling tasks with at, what should the administrator do?

A. Add the specific user to /etc/at.allow file.
B. Add the specific user to [deny] section in the /etc/atd.conf file.
C. Add the specific user to /etc/at.deny file.
D. Add the specific user to nojobs group.
E. Run the following: atd --deny [user].

Answer:

Question 2 Selectable Answer

Which of the following commands lists all queued print jobs?

A. lpd
B. lpr
C. lp
D. lsq
E. lpq

Answer:

Question 3 Selectable Answer

What is true regarding the command sendmail?

A. With any MTA, the sendmail command must be run periodically by the cron daemon.
B. All MTAs, including Postfix and Exim, provide a sendmail command.
C. The sendmail command prints the MTAs queue history of which mails have been sent successfully.
D. It is only available when the sendmail MTA is installed.

Answer:

Question 4 Written Answer

CORRECT TEXT
On a Linux system with shadow passwords enabled, which file in the file system contains the password hashes of all local users? (Specify the full name of the file, including path.)

Answer: /etc/shadow

Question 5 Selectable Answer

Which of the following words is used to restrict the records that are returned from a SELECT query based on a supplied criteria for the values in the records?

A. LIMIT
B. FROM
C. WHERE
D. IF

Answer:

Question 6 Written Answer

CORRECT TEXT
The presence of what file will temporarily prevent all users except root from logging into the system? (Specify the full name of the file, including path.)

Answer: /etc/nologin

Question 7 Selectable Answer

You are looking into a new script you received from your senior administrator. In the very first line you notice a #! followed by a file path.
This indicates that:

A. The file at that location was used to make the script.
B. This script provides identical functionality as the file at that location.
C. This script will self-extract into a file at that location.
D. The program at that location will be used to process the script.

Answer:

Question 8 Written Answer

CORRECT TEXT
Which file contains a set of services and hosts that will be allowed to connect to the server by going through a TCP Wrapper program such as tcpd? (Specify the full name of the file, including path.) https://lh3.googleusercontent.com/-5cd-clmKnbk/AAAAAAAAAAI/AAAAAAAAADM/-SXesH19Ido/s46-c-k-no/photo.jpg

Answer: /etc/hosts.allow
Topic 7, Misc Questions New

Question 9 Selectable Answer

What is the command to delete the default gateway from the system IP routing table? (Choose TWO correct answers.)

A. route del default
B. ifconfig unset default
C. netstat -r default
D. ip route del default
E. sysctl ipv4.default_gw=0

Answer:

Question 10 Written Answer

CORRECT TEXT
With X11 forwarding in ssh, what environment variable is automatically set in the remote host shell that is not set when X11 forwarding is not enabled? (Specify only the environment variable without any additional commands or values.)

Answer: DISPLAY, $DISPLAY

Question 11 Selectable Answer

Which of the following commands puts the output of the command date into the shell variable mydate?

A. mydate="$(date)"
B. mydate="exec date"
C. mydate="$((date))"
D. mydate="date"
E. mydate="${date}"

Answer:

Question 12 Selectable Answer

Which of the following find commands will print out a list of files owned by root and with the SUID bit set in /usr?

A. find /usr -uid 0 -perm +4000
B. find -user root +mode +s /usr
C. find -type suid -username root -d /usr
D. find /usr -ls \*s\* -u root
E. find /usr -suid -perm +4000

Answer:

Question 13 Selectable Answer

Which of the following statements is true if the UID of a regular user is identical to the GID of a group?

A. UID have precedence over GIDs, therefore the user is available while the group doesn’t.
B. The user as well as the group are not available to avoid ambiguity due to the ID conflict.
C. UIDs and GIDs are independent of each other, therefore the user as well as the group are still available.
D. The user is the only member of the group, even if the group configuration contains other members.
E. GIDs have precedence over UIDs, therefore the group is available while the user isn’t.

Answer:

Question 14 Selectable Answer

Which of the following tasks can be accomplished using the command date? (Choose TWO correct answers.)

A. Synchronize the hardware and system clocks.
B. Output date and time in different formats.
C. Set the system clock.
D. Set the hardware clock.
E. Update the time via NT

Answer:

Question 15 Selectable Answer

Which of the following is a legacy program provided by CUPS for sending files to the printer queues on the command line?

A. lpd
B. lpp
C. lpq
D. lpr

Answer:

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