How should I use these Security And File Permissions practice questions?

Read each scenario carefully and choose your answer before revealing the explanation. Then check why your choice was right or wrong. Repeat until the reasoning feels automatic.

Can I practise just Security And File Permissions questions in a focused session?

Yes — use the session launcher on this page to start a 10-, 20-, 30- or 50-question session drawn entirely from the Security And File Permissions domain.

010-160 · topic practice

Security And File Permissions practice questions

Practise LPI Linux Essentials (010-160, v1.6) (010-160) Security And File Permissions practice questions — original exam-style scenarios with answer choices, explanations, and analysis of common mistakes.

Courseiva uses original exam-style practice questions designed for learning and revision. The goal is to understand the concepts, recognise exam patterns, and improve through explanations — not memorise copied exam dumps.

Reviewed byJohnson Ajibi· MSc IT Security

20 questionsDomain: Security And File Permissions

Practice 10 questions Browse domain →

What the exam tests

What to know about Security And File Permissions

Security And File Permissions 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.

Watch out for

Common Security And File Permissions exam traps

▸Answering from memory before reading the full scenario.
▸Missing a constraint such as cost, availability, security, scope or command context.
▸Choosing a broad answer when the question asks for the most specific fix.
▸Ignoring why the wrong options are tempting.

Practice set

Security And File Permissions questions

20 questions · select your answer, then reveal the explanation

Question 1hardmultiple choice

Read the full Security And File Permissions explanation →

You are managing a directory shared by a project team. You want all files created in this directory to automatically belong to the 'developers' group, regardless of the user's primary group. Which command achieves this?

Trap 1: usermod -aG developers

This adds a user to a group, which does not automate inheritance.

Trap 2: chgrp developers /data

This changes existing group ownership, not inheritance for new files.

Trap 3: chmod 1777 /data

This sets the sticky bit, used to prevent file deletion by others.

Study all Security And File Permissions common traps →

A
usermod -aG developers
Why wrong: This adds a user to a group, which does not automate inheritance.
B
chgrp developers /data
Why wrong: This changes existing group ownership, not inheritance for new files.
C
chmod g+s /data
The setgid bit on a directory forces group inheritance.
D
chmod 1777 /data
Why wrong: This sets the sticky bit, used to prevent file deletion by others.

Security And File Permissions practice questions

What to know about Security And File Permissions

Common Security And File Permissions exam traps

Security And File Permissions questions

You are managing a directory shared by a project team. You want all files created in this directory to automatically belong to the 'developers' group, regardless of the user's primary group. Which command achieves this?

You want to change the primary group of an existing user named 'bob' to 'staff'. Which command should you use?

A system administrator needs to identify the numerical ID (UID) of the user 'jdoe'. Which file should be checked?

A user's account has been compromised. Which command is the most effective way to lock the user account immediately while preserving their files?

Which permission bit must be set on a directory to allow a user to enter the directory and access files within it?

A user reports they cannot execute a script named 'deploy.sh' even though the file permissions are set to 644. What must you change to enable execution for the owner?

You are configuring a temporary directory where multiple users save files. To ensure that users can only delete their own files and not files created by others, what must you set?

You need to prevent a standard user from accidentally deleting a critical configuration file owned by root. Which command ensures the file cannot be modified or deleted even by the root user?

Which command-line tool is used to display the groups a specific user belongs to?

You need to create a new group named 'audit'. Which command should you execute?

You want to set a default umask of 027 for all users. Which file should you edit to apply this globally?

You notice a file has permissions listed as '-rwsr-xr-x'. What does the 's' in the owner's position indicate?

You want to change the owner of 'data.txt' from 'user1' to 'user2' AND the group from 'group1' to 'group2' in one command. Which is correct?

To add a new user named 'guest' and set their home directory to '/home/guest', which command is correct?

A file is owned by root and has permissions 600. What happens if a regular user tries to read this file?

What is the primary purpose of the /etc/shadow file?

Which command removes a group named 'tempgroup' from the system?

Which file permission represents read, write, and execute for the owner, and read-only for group and others?

A user complains they cannot read a file. The file has permissions 640 and is owned by root, but the user is in the group that owns the file. Why can't they read it?

What is the result of running 'chmod 000 secret.txt'?

Track your progress over time

Start a Security And File Permissions only practice session

Related 010-160 topic practice pages

The Power OF The Command Line practice questions

Security And File Permissions practice questions

The Linux Community And A Career IN Open Source practice questions

The Linux Operating System practice questions

Finding Your Way ON A Linux System practice questions

010-160 fundamentals practice questions

010-160 scenario practice questions

010-160 troubleshooting practice questions

Frequently asked questions

Track your progress

Study resources

Exam traps to avoid