100% Free LFCS Practice Exam Questions (2026)

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Linux Foundation LFCS Dumps & Practice Test Questions 2026

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Total 260 Questions | Updated On: Sep 03, 2026

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Question 1

Each entry in a crontab must end with what character?

A : Tab

B : Space

C : Backslash

D : Newline

Answer: D

Question 2

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 3

Which of the following tasks can be accomplished using the command date? (Choose

TWO 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 true regarding TCP port 23?

A : Port 23 is the well known port for the telnet service which is a plain text protocol that should no longer be used.

B : Port 23 is the well known port for the SSH service which provides secure logins.

C : Port 23 is the well known port for the rlogin service which is SSL secured by default.

D : Port 23 is the well known port for the system login services which are encrypted when the user runs the starttls command in his login shell.

Answer: A

Question 5

Which of the following environment variables overrides or extends the list of directories

holding shared libraries?

A : LD_LOAD_PATH

B : LD_LIB_PATH

C : LD_LIBRARY_PATH

D : LD_SHARE_PATH

E : LD_RUN_PATH

Answer: C

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Total 260 Questions | Updated On: Sep 03, 2026

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