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ISC2 CC Practice Question: Which THREE of the following are recognized…
Which THREE of the following are recognized security principles according to NIST and ISC2?
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
✓
Separation of duties
Least privilege, separation of duties, and defense in depth are fundamental. Security through obscurity is not a recognized principle.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Separation of duties
Why this is correct
Separation of duties prevents fraud and error.
- ✗
Security through obscurity
Why it's wrong here
Security through obscurity is not a valid principle; security should not rely on secrecy.
- ✓
Least privilege
Why this is correct
Least privilege is a core principle.
- ✓
Defense in depth
Why this is correct
Defense in depth uses multiple layers of security.
- ✗
Single point of failure
Why it's wrong here
Single point of failure is a vulnerability, not a principle.
Go deeper
Related to this question
Learn chapter
Introduction to Security Principles
Key term
Defense in depth
Defense in depth is a cybersecurity strategy that uses multiple layers of security controls to protect information and systems, so if one layer fails, another layer is already in place to stop the attack.
Key term
Least privilege
Least privilege is a security principle that means giving users, systems, or programs only the minimum permissions they need to do their job and nothing more.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CC practice question is part of Courseiva's free ISC2 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 CC exam.