A financial organization is designing physical access controls for their data center which houses critical infrastructure. The security team wants to implement a comprehensive approach to restricting unauthorized access. Which of the following combinations best demonstrates appropriate layered physical access controls for the data center?
Biometric access control for key entry points, reinforced walls, and fire suppression systems
Access cards for employees, mantrap at building entrance, security cameras at external doors, and sign-in procedures
High-security door locks, security guards at main entrance, visitor log, and alarm system
Perimeter fencing with guard patrols, access card system for building entry, biometric verification for server room access, and CCTV surveillance throughout the facility
The correct answer demonstrates a proper implementation of defense-in-depth for physical security. The combination includes perimeter security (fencing with guard patrol), building access control (access card system), additional authentication for sensitive areas (biometric verification), and monitoring (CCTV surveillance). This layered approach provides multiple security controls that must be bypassed for an attacker to gain unauthorized access to critical assets.
The incorrect options either rely too heavily on a single type of control, lack monitoring capabilities, or include inappropriate controls for a data center environment. Defense-in-depth is a fundamental security principle that applies to both physical and logical security controls, requiring multiple, varied security measures to protect assets.
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ISC2 CISSP
Identity and Access Management (IAM)
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