Free Linux Foundation LFCS Exam Questions

Become Linux Foundation Certified with updated LFCS exam questions and correct answers

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Total 260 Questions | Updated On: Mar 07, 2026

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Question 1

Which of the following environment variables overrides or extends the list of directoriesholding shared libraries?

A : LD_LOAD_PATH

B : LD_LIB_PATH

C : LD_LIBRARY_PATH

D : LD_SHARE_PATH

E : LD_RUN_PATH

Answer: C

Question 2

What is a purpose of an SSH host key?

A : It must be sent by any SSH client in addition to a user key in order to identify the client's host.

B : It provides the server-s identity information to connecting SSH clients.

C : It is the root key by which all user SSH keys must be signed.

D : It authenticates any user that logs into a remote machine from the key-s host.

E : It is used by system services like cron, syslog or a backup job to automatically connectto remote hosts.

Answer: B

Question 3

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

A : /etc/ssh/sshd_config

B : /etc/ssh/ssh

C : /etc/ssh/server

D : /etc/ssh/ssh_config

E : /etc/ssh/ssh_server

Answer: A

Question 4

When the command echo $$ outputs 12942, what is the meaning of 12942?

A : It is the process ID of the echo command.

B : It is the process ID of the current shell.

C : It is the process ID of the last command executed.

D : It is the process ID of the last command which has been placed in the background.

Answer: B

Question 5

Which of the following are valid stream redirection operators within Bash? (Choose THREEcorrect answers.)

A :

B :

C : >

D : >>>

E : %>

Answer: A,B,C

Page: 1 / 52

Total 260 Questions | Updated On: Mar 07, 2026

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