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: May 11, 2026

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Question 1

Which of the following kernel parameters instructs the kernel to suppress most boot messages?

A : silent

B : verbose=0

C : nomesg

D : quiet

Answer: D

Question 2

Given a file called birthdays containing lines like:YYYY-MM-DD Name1983-06-02 Tim1995-12-17 SueWhich command would you use to output the lines belonging to all people listed whosebirthday is in May or June?

A : grep '[56]' birthdays

B : grep 05?6? birthdays

C : grep '[0-9]*-0[56]-' birthdays

D : grep 06 birthdays | grep 05

Answer: C

Question 3

Which of the following tasks can be accomplished using the command date? (ChooseTWO 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 NTP.

Answer: B,C

Question 4

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 5

Each entry in a crontab must end with what character?

A : Tab

B : Space

C : Backslash

D : Newline

Answer: D

Page: 1 / 52

Total 260 Questions | Updated On: May 11, 2026

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