Question No : 1
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].

Show Answers

Answer:

Question No : 2
Which of the following commands lists all queued print jobs?

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

Show Answers

Answer:

Question No : 3
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.

Show Answers

Answer:

Question No : 4
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.)

Show Answers

Answer:/etc/shadow

Question No : 5
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

Show Answers

Answer:

Question No : 6
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.)

Show Answers

Answer:/etc/nologin

Question No : 7
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.

Show Answers

Answer:

Question No : 8
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

Show Answers

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

Question No : 9
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

Show Answers

Answer:

Question No : 10
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.)

Show Answers

Answer:DISPLAY, $DISPLAY