Understanding User Management in Linux

In Linux, users are entities that interact with the operating system by logging in and executing commands or applications. Why is user management critical?

• For security and access control

• To increase system speed

• To reduce software costs

• For better graphics performance

What are the components of a user account in Linux?

• Username, UID, GID, Home Directory, Default Shell, Password

• Username, Email, Phone Number

• Username, Password, Security Questions

• Username, UID, Home Directory

What are the two broad categories of users in Linux?

• System Users and Regular Users

• Admin Users and Guest Users

• Root Users and Standard Users

• Super Users and Limited Users

What is the role of user authentication in Linux?

• To grant access to system resources

• To improve system performance

• To manage software installations

• To enhance graphics quality

What skills are necessary for effective user management?

• Creating, modifying, and deleting user accounts

• Designing user interfaces

• Writing software code

• Managing hardware components

What information is stored in the file /etc/passwd?

• Username, password placeholder, UID, GID, comment, home directory, and default shell

• Usernames and passwords only

• User roles and permissions

• System logs and error messages

Why was the password storage transitioned from /etc/passwd to /etc/shadow?

• To increase security by restricting access

• To improve system performance

• To simplify user management

• To allow for more user accounts

What does the /etc/shadow file contain?

• Hashed passwords and related security fields

• Usernames and email addresses

• System configuration settings

• User activity logs

What command is used to add a new user in Linux?

• useradd

• newuser

• adduser

• createuser

How can you change a user's password in Linux?

• updatepass username

• setpass username

• changepass username

• passwd username