CDCP Physical Security and Access 4

Question 1

Which physical security control is MOST effective at preventing tailgating into a secure data center zone?

Accepted Answer

Mantrap (airlock) vestibule

Answer

A mantrap forces one person at a time through a controlled entry, physically preventing tailgating by holding the second door locked until the first is secured.

Question 2

A data center's perimeter fence should be at minimum how high to deter casual intruders per common security standards?

Accepted Answer

8 feet (2.4 m)

Answer

Industry standards typically recommend at least 8 feet (2.4 m) for perimeter fencing to deter casual intrusion, often topped with barbed wire for additional deterrence.

Question 3

What is the PRIMARY purpose of maintaining a visitor log in a data center?

Accepted Answer

Providing an audit trail for accountability

Answer

Visitor logs create an auditable record of who accessed the facility and when, supporting accountability and forensic investigations if a security incident occurs.

Question 4

A data center uses biometric fingerprint scanners for access. What is the key metric used to balance false acceptance vs. false rejection rates?

Accepted Answer

Crossover Error Rate (CER)

Answer

The Crossover Error Rate (CER), also called Equal Error Rate (EER), is the point where FAR and FRR are equal and is used to compare biometric system accuracy.

Question 5

Which of the following BEST describes the 'defense in depth' approach to data center physical security?

Accepted Answer

Layering multiple security controls so each compensates for weaknesses in others

Answer

Defense in depth uses multiple overlapping security layers (perimeter, building, room, rack) so that a failure in one layer does not result in complete compromise.

CDCP - Certified Data Centre Professional Practice Test

CDCP - Certified Data Centre Professional Practice Test

CDCP Physical Security and Access 4