Which term describes the observation of location, activity, or person for security purposes?

• A. Monitoring
• B. Analysis
• C. Evaluation
• D. Surveillance

Answer: (D)

Observing location, activity, or person for security purposes is surveillance. This term embodies ongoing, purposeful watching to detect threats, deter wrongdoing, and enable a quick, appropriate response. Surveillance can use cameras, guards, access controls, and other detection methods, all managed within policies to balance safety and privacy. Monitoring can involve watching for general conditions or system states, not necessarily focused on people for security. Analysis is about interpreting data gathered from observation to understand patterns, while evaluation assesses how well a program or control is performing. Surveillance best fits the idea of continuous observation aimed specifically at security.