Which statement best describes a protocol analyzer's role in network security?

Which statement best describes a protocol analyzer's role in network security?

• A. It blocks unauthorized traffic
• B. It captures and inspects network traffic to assess security and anomalies
• C. It generates synthetic traffic to test IDS
• D. It manages routing policies

Answer: (B)

A protocol analyzer provides visibility into network communications by capturing and decoding packets, allowing you to inspect protocol headers, payloads, timing, and the sequence of events. This visibility lets you identify anomalies, unknown or suspicious traffic, misconfigurations, and indicators of compromise, helping assess whether security controls are working and where issues may lie. It does not block traffic (that’s firewalls or IDS/IPS in enforcement mode), it does not generate synthetic traffic (that’s a traffic generator used for testing), and it does not manage routing policies (that’s handled by routers and network configs). So the best description is that it captures and inspects network traffic to assess security and anomalies.

A protocol analyzer provides visibility into network communications by capturing and decoding packets, allowing you to inspect protocol headers, payloads, timing, and the sequence of events. This visibility lets you identify anomalies, unknown or suspicious traffic, misconfigurations, and indicators of compromise, helping assess whether security controls are working and where issues may lie. It does not block traffic (that’s firewalls or IDS/IPS in enforcement mode), it does not generate synthetic traffic (that’s a traffic generator used for testing), and it does not manage routing policies (that’s handled by routers and network configs). So the best description is that it captures and inspects network traffic to assess security and anomalies.