Final answer:
An IDS is a type of Detective control in a network security context, which is option C. It monitors network traffic to detect and alert on suspicious activities, helping organizations identify potential security compromises.
Step-by-step explanation:
An Intrusion Detection System (IDS) is a security measure deployed in networks to monitor traffic and identify suspicious activities that may indicate a security breach. When the question asks what type of control an IDS is, the answer is C. Detective. This is because an IDS does not prevent an intrusion (like preventative controls would), nor does it correct a security breach (like corrective controls). Instead, it detects and alerts when potential security threats are identified.
There are a variety of IDS solutions, each with different methodologies for detecting intrusions, such as signature-based, anomaly-based, or heuristics-based detection. Regardless of the approach, the primary goal is always to identify suspicious activities that could indicate a compromise or attack on the network.
Types of Control:
Corrective controls are implemented to mitigate or correct the impact of an incident after it occurs.
Physical controls pertain to tangible measures taken to protect assets, such as locks, fences, and security cameras.
Administrative controls are procedures and policies designed to regulate employee behavior, such as training and guidelines.