Which statement about the Unix root account is true?

Which statement about the Unix root account is true?

• A. It is a guest account with limited privileges
• B. It is a standard user account
• C. It is the administrator account in Unix systems
• D. It is a hidden system file

Answer: (C)

In Unix, the root account is the administrator, also called the superuser. This special account has unrestricted access to all commands, files, and system resources, meaning it can perform actions that normal users cannot—like changing system configurations, installing software, and modifying any file regardless of permissions. Because of this broad power, root access is used only when necessary and is often accessed through a controlled mechanism like sudo from a regular user account to minimize risk. It is not a guest account with limited privileges, nor a standard user account, and it isn’t a hidden system file—root refers to a user with full administrative authority, not to a file.

In Unix, the root account is the administrator, also called the superuser. This special account has unrestricted access to all commands, files, and system resources, meaning it can perform actions that normal users cannot—like changing system configurations, installing software, and modifying any file regardless of permissions. Because of this broad power, root access is used only when necessary and is often accessed through a controlled mechanism like sudo from a regular user account to minimize risk. It is not a guest account with limited privileges, nor a standard user account, and it isn’t a hidden system file—root refers to a user with full administrative authority, not to a file.