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CCSP Practice Question: A cloud service provider is designing a new data…
A cloud service provider is designing a new data center. To ensure physical security, which of the following controls is most effective for preventing unauthorized access to the server floor?
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
✓
Implement biometric access controls and two-factor authentication at all entry points.
Biometric access control combined with two-factor authentication provides strong, layered physical security that effectively prevents unauthorized access. Option B is incorrect: hiring security guards is a deterrent but not the most effective preventive control, as guards can be bypassed or fail due to human error. Option C is incorrect: while mantraps can prevent tailgating, they are most effective when combined with authentication mechanisms; alone they do not address all access vectors. Option D is incorrect: surveillance cameras are a detective control—they record events but do not actively prevent unauthorized access.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Implement biometric access controls and two-factor authentication at all entry points.
Why this is correct
Biometric + 2FA provides strong authentication and prevents unauthorized access.
- ✗
Hire 24/7 security guards to monitor the entrance.
Why it's wrong here
Guards can be fallible and costly; not the most effective preventive control.
- ✗
Use mantraps at the main entrance to catch tailgating.
Why it's wrong here
Mantraps help but need strong authentication to be fully effective.
- ✗
Install high-definition surveillance cameras covering all entrances and server aisles.
Why it's wrong here
Cameras are detective, not preventive.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CCSP 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 CCSP exam.