Clark, a security team member of an organization, was instructed to secure the premises from...

Physical security controls are security measures that prevent or deter unauthorized physical access to a facility, resource, or information. Physical security controls include locks, doors, gates, fences, guards, cameras, alarms, sensors, biometrics, and badges. Physical security controls protect the network and its components from theft, damage, sabotage, or natural disasters. Clark implemented physical security controls in the above scenario, as he installed security controls that allow employees to enter the office only after scanning their badges or fingerprints.References:

Understanding the Various Types of Physical Security Controls- Week 4: Network Security Controls: Physical Controls

The Role of Physical Security in Maintaining Network Security

Physical Security: Planning, Measures & Examples + PDF