Linux Foundation Linux Foundation Certifications LFCS Questions & Answers

• Question 171:

  Which of the following statements is correct when talking about /proc/?

  A. All changes to files in /proc/ are stored in /etc/proc.d/ and restored on reboot.

  B. All files within /proc/ are read-only and their contents cannot be changed.

  C. All changes to files in /proc/ are immediately recognized by the kernel.

  D. All files within/proc/ are only readable by the root user.

  Correct Answer: C

• Question 172:

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

  A. /etc/yum.repos.d, /etc/yum.repos.d/, yum.repos.d, yum.repos.d/

  Correct Answer: A

• Question 173:

  Which command, depending on its options, can display the open network connections, the routing tables, as well as network interface statistics. (Specify ONLY the command without any path or parameters.)

  A. netstat, /bin/netstat, ss, /usr/bin/ss

  Correct Answer: A

• Question 174:

  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/-5cdclmKnbk/AAAAAAAAAAI/ AAAAAAAAADM/-SXesH19Ido/s46-c-k-no/photo.jpg

  A. /etc/hosts.allow

  Correct Answer: A

• Question 175:

  Which of the following commands determines the type of a file by using a definition database file which contains information about all common file types?

  A. magic

  B. type

  C. file

  D. pmagic

  E. hash

  Correct Answer: C

• Question 176:

  Which of the following commands moves and resumes in the background the last stopped shell job?

  A. run

  B. bg

  C. fg

  D. back

  Correct Answer: B

• Question 177:

  What is true regarding a default route?

  A. The default route is always used first. When the default route is not available more specific routes are tried.

  B. When a default route is set, all other routes are disabled until the default route is deleted.

  C. The default route is only used if there is not a more specific route to a destination host or network.

  D. Without a default route, no network communication even in directly attached networks is possible.

  Correct Answer: C

• Question 178:

  Which of the following are init systems used within Linux systems? (Choose THREE correct answers.)

  A. startd

  B. systemd

  C. Upstart

  D. SysInit

  E. SysV init

  Correct Answer: BCE

• Question 179:

  Which of the following options for the kernel's command line changes the systemd boot target to rescue.target instead of the default target?

  A. systemd.target=rescue.target

  B. systemd.runlevel=rescue.target

  C. systemd.service=rescue.target

  D. systemd.default=rescue.target

  E. systemd.unit=rescue.target

  Correct Answer: E

• Question 180:

  Which of the following file permissions belong to a symbolic link?

  A. -rwxrwxrwx

  B. +rwxrwxrwx

  C. lrwxrwxrwx

  D. srwxrwxrwx

  Correct Answer: C