How many Select Two (Multi-Select) Questions questions are on this page?

This page has 20 Select Two (Multi-Select) Questions scenario questions for the LFCS exam, each with detailed explanations and wrong-answer analysis.

How should I approach LFCS scenario questions?

Read the full scenario before looking at the answer options. Identify the constraint or requirement in the scenario, then eliminate options that are generally true but wrong for this specific case. Scenario questions reward careful reading over pattern matching.

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Select Two (Multi-Select) Questions

Practise Linux Foundation Certified System Administrator LFCS practice questions — original exam-style scenarios covering every exam domain, with detailed explanations, wrong-answer analysis, and common exam traps.

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Scenario guide

How to approach select two (multi-select) questions

Multi-select questions tell you to 'Choose TWO' or 'Choose THREE'. Getting partial credit is not a thing — you must select all correct answers with no incorrect ones. The stem always states how many to choose, so trust it. These questions require precision, not best-guess elimination.

Quick answer

Select Two (Multi-Select) Questions questions test whether you can apply the concept in context, not just recognise a definition.

How the topic appears in realistic exam-style scenarios.

Which detail in the question changes the correct answer.

How to eliminate plausible but wrong options.

How to connect the question back to the wider exam objective.

Practice scenarios

Question 1mediummulti select

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A Linux administrator wants to restrict user 'alice' to only be able to use the system for non-interactive tasks (e.g., running cron jobs and receiving mail) but not allow her to log in via SSH or console. Which TWO actions would achieve this goal? (Choose two.)

A
Lock alice's password with 'passwd -l alice'.
Why wrong: Does not block SSH key authentication.
B
Set alice's login shell to /sbin/nologin in /etc/passwd.
Prevents interactive login without affecting cron/mail.
C
Add alice to the DenyUsers directive in /etc/ssh/sshd_config.
Blocks SSH login only.
D
Change alice's UID to 0.
Why wrong: Gives root privileges; does not block logins.
E
Add alice to /etc/cron.deny.
Why wrong: Blocks cron, which is not desired.

Select Two (Multi-Select) Questions

How to approach select two (multi-select) questions

Quick answer

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Practice scenarios

A Linux administrator wants to restrict user 'alice' to only be able to use the system for non-interactive tasks (e.g., running cron jobs and receiving mail) but not allow her to log in via SSH or console. Which TWO actions would achieve this goal? (Choose two.)

An administrator needs to grant a user named 'john' the ability to switch to any other user without a password. Which TWO of the following steps are required to achieve this?

Which THREE of the following are valid methods to temporarily switch to a different user account without logging out entirely? (Choose three.)

A system administrator needs to check the firewall rules on a Linux server using firewalld. Which two commands can be used to list the current rules? (Choose two.)

Which TWO commands can be used to display the contents of a text file that has been compressed with gzip without decompressing it to disk?

Which THREE of the following are valid methods to mount an NFS filesystem on a client?

Which THREE of the following actions require root privileges?

Which THREE statements about Linux network bonding modes are correct? (Choose three.)

Which THREE of the following statements about the user private group (UPG) scheme are true?

Which THREE of the following commands can be used to view the contents of a compressed file named 'file.gz' without permanently decompressing it? (Choose exactly three.)

Which THREE steps are required to create a new ext4 filesystem on /dev/sdc1 and ensure it is automatically mounted at /mnt/data at boot? (Choose three.)

Which THREE commands can show the current system time and date?

Which THREE of the following statements about Linux file permissions are correct?

Which TWO methods can be used to set a static IPv4 address on a CentOS 7 system? (Choose two.)

Which THREE conditions can cause an 'RTNETLINK answers: File exists' error when adding a static route?

Which two commands produce output that includes the current runlevel or target? (Choose two.)

A system administrator needs to identify all available block devices on a Linux server. Which two commands can be used to accomplish this? (Choose two.)

Which TWO commands can be used to check the status of a service?

Which TWO configuration files are commonly used to set DNS resolver settings on a Linux system?

Which THREE are built-in chains in the iptables filter table? (Choose three.)