What is a typical limitation of a regular user account in Linux?

Cannot modify files owned by other users

Cannot create files in their home directory

A user reports they cannot modify a file they created yesterday. They run a command and see output: 'uid=1000(alice) gid=1000(alice) groups=1000(alice),27(sudo)'. Which command did the user most likely run, and what does the output tell you?

whoami; it shows the username and all groups the user belongs to.

who; it lists logged-in users and their group memberships.

groups; it displays the numeric UID and GID of the current user.

id; it shows the user's UID, primary group, and supplementary groups, confirming they are a regular user with sudo privileges.

An admin notices that a service is running as root, but the service's documentation recommends running it as a system user. The service needs to bind to a port below 1024. What is the best course of action?

Keep running the service as root because it needs to bind to a low port.

Create a system user for the service and configure it to bind to the port, possibly using capabilities or a port-forwarding rule if needed.

Run the service as root but use a firewall to restrict access.

Run the service as a regular user with a home directory.

While investigating a server, an admin runs `ps aux` and sees a process running as user 'www-data'. The admin needs to understand what this user is. What is the most accurate description of the 'www-data' account?

The root user under a different name to hide its identity.

A temporary account created when the web server starts and deleted when it stops.

A system user created to run the web server service with limited privileges, not for interactive login.

A regular user with a home directory used for personal file storage.

Which of the following tasks is a regular user typically allowed to perform?

Installing system-wide software packages

Creating and editing files in their home directory

LPI Linux Essentials (010-160)

Domain 5Objective 1

5.1 Basic Security and Identifying User Types (weight: 2) LINUX-ESSENTIALS Practice Questions (Page 2)

Part of the Topic 5: Security and File Permissions domain, which makes up ~17% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 60-minute exam (~25–40 total, ~4–7 in this domain), expect 1–2 from this objective — we provide 28 practice questions to prepare you well beyond it. (estimate)

28questions here

6free pages

6concepts

Questions 6–10

6foundation · easy
What is a typical limitation of a regular user account in Linux?
Select an answer first
7application · medium
A user reports they cannot modify a file they created yesterday. They run a command and see output: 'uid=1000(alice) gid=1000(alice) groups=1000(alice),27(sudo)'. Which command did the user most likely run, and what does the output tell you?
Select an answer first
8expert · hard
An admin notices that a service is running as root, but the service's documentation recommends running it as a system user. The service needs to bind to a port below 1024. What is the best course of action?
Select an answer first
9application · medium
While investigating a server, an admin runs `ps aux` and sees a process running as user 'www-data'. The admin needs to understand what this user is. What is the most accurate description of the 'www-data' account?
Select an answer first
10foundation · easy
Which of the following tasks is a regular user typically allowed to perform?
Select an answer first

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