Multiple choice technology programming languages

User's with user id as 0 (Zero) are

  1. Printer users

  2. Not allowed to login using rlogin/ssh

  3. root users

  4. User id cannot be 0

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

User ID 0 is reserved exclusively for the root/superuser account in Unix systems. This special account has unrestricted system access and can bypass all permission checks. Regular users always have non-zero UIDs. UID 0 is what grants root its omnipotent powers.