CSSLP Secure Software Concepts Practice Question
You are using the 'Complete Mediation' principle in your system's access control design. What does this require?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Checking authorization for every access request.
Complete mediation requires that every access request to every object must be checked for authorization, with no caching or bypassing allowed.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Granting permanent access to all authenticated users.
Why it's wrong here
This is a violation of the principle.
- ✗
Checking authorization only at login.
Why it's wrong here
This would allow unauthorized access for the duration of the session.
- ✓
Checking authorization for every access request.
Why this is correct
Every request must be checked against the policy.
- ✗
Relying on the user to request access when needed.
Why it's wrong here
Access must be mediated by the security kernel.
- ✗
Caching permissions to reduce latency.
Why it's wrong here
Caching can lead to stale permissions and violates complete mediation.
About these practice questions
One of 198 original CSSLP practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official (ISC)² exam blueprint
This CSSLP practice question is part of Courseiva's free (ISC)² certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CSSLP exam.