ISC2 CC Access Controls Concepts Practice Question
A security engineer is designing a physical security plan. Which combination of controls best represents defense in depth for a data center?
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
✓
Perimeter fencing, access badges at building entrance, biometric reader on server room, and cable locks on servers
Defense in depth uses multiple, overlapping controls. Perimeter fencing, access badges, biometric readers, and cable locks each address different layers, providing redundancy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Visitor sign-in and escort policy only
Why it's wrong here
Visitor management alone is insufficient; it lacks multiple physical layers.
- ✗
A single high-tech lock on the server room door
Why it's wrong here
Single control is not defense in depth; it lacks layers.
- ✗
A strong password policy for all employees
Why it's wrong here
This is a logical control, not a physical layer.
- ✓
Perimeter fencing, access badges at building entrance, biometric reader on server room, and cable locks on servers
Why this is correct
Correct. This layered approach exemplifies defense in depth.
Go deeper
Related to this question
Learn chapter
Introduction to Security Principles
Key term
Redundancy
Redundancy is the practice of adding extra components or systems so that if one fails, another can take over without interruption.
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.
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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.