CertNexus Certified Cyber Secure Coder (CSC) — Question 25

When tracing an attack to the point of origin, which of the following items is critical data to map layer 2 switching?

Answer options

• A. DNS cache
• B. ARP cache
• C. CAM table
• D. NAT table

Correct answer: B

Explanation

The ARP cache is crucial for mapping layer 2 switching as it contains IP address to MAC address mappings, helping to trace the origin of the attack. The DNS cache, CAM table, and NAT table do not provide the necessary information for identifying the source at layer 2, as they pertain to different network functions or layers.