CCTV and Surveillance Signs as Security Controls
To improve the security at a data center, a security administrator implements a CCTV system and posts several signs about the possibility of being filmed. Which of the following best describe these types of controls? (Choose two.)
Community Votes
100% of anonymous learners picked answer BD. Votes are pick records left by other test-takers — they are not the verified answer.
Community Insight
The test focuses on identifying that surveillance signs act as both deterrents (discouraging action) and directives (communicating rules), rather than preventive or corrective controls.
This question examines the classification of physical security controls, specifically distinguishing between deterrent and directive measures used in data centers.
Many learners select 'Detective' for CCTV because it records evidence, but since Detective is not an option, they often miss the 'Directive' nature of the warning signs required by the 'Choose two' instruction.
Community Discussion (6 comments)
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Expert Analysis
Why the Answer Is Correct
The correct options are B (Deterrent) and D (Directive). The presence of a CCTV system and warning signs primarily serves to discourage unauthorized behavior through the fear of being caught, which defines a deterrent control. Additionally, the posted signs explicitly inform individuals of the monitoring policy, effectively directing their behavior by stating the consequences of intrusion; this communication aspect classifies them as directive controls.Why the Other Options Are Wrong
Preventive controls actively stop an incident from occurring (e.g., locks, fences); while CCTV might prevent some crimes via deterrence, it does not physically block access like a lock. Corrective controls remediate damage after an incident (e.g., restoring backups), which is not the function of surveillance. Compensating controls are alternatives when primary controls fail, which does not apply here as these are primary physical safeguards.Community Comment Notes
Community consensus strongly supports B and D. As user 'laternak26' noted, "The signs informing people that they may be filmed are also directive controls." Similarly, user 'CJfromVA' confirmed that signs serve to direct behavior by communicating monitoring policies. While one user mentioned 'Detective', that option was not available in the multiple-choice list, making B and D the only valid pair.Exam Strategy
When analyzing physical security scenarios, distinguish between controls that stop access (preventive), those that catch intruders (detective), and those that discourage them (deterrent). Always check if warning signs or policies are present, as they often indicate directive controls alongside deterrent ones.
Frequently Asked Questions
Why aren't CCTV cameras considered detective controls?
While CCTV does detect activity by recording it, 'Detective' is not provided as an option. The question forces a choice between the remaining valid classifications: Deterrent (discouragement) and Directive (policy communication).
What is the difference between deterrent and directive controls?
Deterrent controls aim to discourage malicious acts through fear of consequence (e.g., cameras, guards). Directive controls aim to influence behavior through instructions or warnings (e.g., 'No Entry' signs, privacy notices).
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