Linux Foundation Linux Foundation Certifications LFCS Questions & Answers

• Question 161:

  Which configuration file would be edited to change default options for the OpenSSH server?

  A. /etc/ssh/sshd_config

  B. /etc/ssh/ssh

  C. /etc/ssh/server

  D. /etc/ssh/ssh_config

  E. /etc/ssh/ssh_server

  Correct Answer: A

• Question 162:

  Which of the following options is used in a GRUB Legacy configuration file to define the amount of time that the GRUB menu will be shown to the user?

  A. hidemenu

  B. splash

  C. timeout

  D. showmenu

  Correct Answer: C

• Question 163:

  Which directory holds the files that configure the xinetd service when using several configuration files instead of an integrated configuration file? (Specify the full path to the directory.)

  A. /etc/xinetd.d/, /etc/xinetd.d

  Correct Answer: A

• Question 164:

  Which variable defines the directories in which a Bash shell searches for executable commands?

  A. BASHEXEC

  B. BASHRC

  C. PATH

  D. EXECPATH

  E. PATHRC

  Correct Answer: C

• Question 165:

  Why is the correct configuration of a system's time zone important?

  A. Because the conversion of Unix timestamps to local time relies on the time zone configuration.

  B. Because the time zone is saved as part of the modification times of files and cannot be changed after a file is created.

  C. Because the environment variables LANG and LC_MESSAGES are, by default, set according to the time zone.

  D. Because NTP chooses servers nearby based on the configured time zone.

  Correct Answer: A

• Question 166:

  Which of the following IPv4 networks are reserved by IANA for private address assignment and private routing? (Choose THREE correct answers.)

  A. 127.0.0.0/8

  B. 10.0.0.0/8

  C. 169.255.0.0/16

  D. 172.16.0.0/12

  E. 192.168.0.0/16

  Correct Answer: BDE

• Question 167:

  Given the following routing table:

  

  How would an outgoing packet to the destination 192.168.2.150 be handled?

  A. It would be passed to the default router 192.168.178.1 on wlan0.

  B. It would be directly transmitted on the device eth0.

  C. It would be passed to the default router 255.255.255.0 on eth0.

  D. It would be directly transmitted on the device wlan0.

  E. It would be passed to the router 192.168.1.1 on eth0.

  Correct Answer: E

• Question 168:

  Which of the following commands can be used to display the inode number of a given file?

  A. inode

  B. ls

  C. ln

  D. cp

  Correct Answer: B

• Question 169:

  Which of the following commands will NOT update the modify timestamp on the file /tmp/myfile.txt?

  A. file /tmp/myfile.txt

  B. echo "Hello" >/tmp/myfile.txt

  C. sed -ie "s/1/2/" /tmp/myfile.txt

  D. echo -n "Hello" >>/tmp/myfile.txt

  E. touch /tmp/myfile.txt

  Correct Answer: A

• Question 170:

  What is the name of the simple graphical login manager that comes with a vanilla X11 installation? (Specify ONLY the command without any path or parameters.)

  A. xdm

  Correct Answer: A