Multiple choice

_____ rings are a generalisation of the concept of a supervisor state.

  1. Acceptance

  2. Rejection

  3. Protection

  4. Access

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

Protection rings are a hierarchical protection mechanism that generalizes the supervisor/user mode concept. Inner rings have more privileges; outer rings have fewer. MULTICS introduced this model, later adopted in many systems including x86 architecture. Rings provide fine-grained access control beyond just supervisor vs user mode.