Provide essential physical security controls relevant to a TA environment.

• A. Access control, surveillance, secure rooms, tamper-evident seals, environmental controls, asset management, and routine security patrols
• B. Open access to all rooms; no surveillance
• C. No asset management; rely on staff memory
• D. Only digital security; no physical controls

Answer: (A)

Layered physical security controls protect people, equipment, and sensitive information in a trusted-agent environment by deterring, detecting, and delaying unauthorized access. Access control ensures that only authorized individuals can enter restricted areas, which is essential when delicate experiments, confidential data, or valuable devices are present. Surveillance provides ongoing monitoring and a deterrent effect, and the footage or logs support investigations if anything suspicious occurs.

Secure rooms create physical boundaries for high-value or sensitive assets, making it harder for someone to reach them without proper authorization. Tamper-evident seals help you know if a device or container has been opened or altered, which is crucial for maintaining integrity and chain of custody. Environmental controls keep conditions suitable for both people and equipment—proper climate, fire safety, and power protection prevent equipment failure and data loss.

Asset management keeps an up-to-date inventory of hardware, software, and their locations, supporting accountability, maintenance, and quick recovery if something goes missing. Routine security patrols provide an active, recognizable presence, help spot anomalies, verify access controls are functioning, and enable swift response to incidents.

Choosing open access, no surveillance, no asset tracking, or relying solely on digital security misses the physical layer that protects assets and operations. Without these controls, spaces can be entered by unauthorized personnel, tampering can go unnoticed, devices can be lost or compromised, and environmental risks can degrade equipment and data.