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

UID 0 is reserved for the root user, the superuser with full system privileges. Regular users have UIDs starting from 1000 or 500 depending on the distribution. The possessive User's is grammatically incorrect but doesn't affect the technical answer.