During a problem isolation with the OSI model, what layer will you investigate when the issue is ARP or MAC address?

During a problem isolation with the OSI model, what layer will you investigate when the issue is ARP or MAC address?
A . Network level
B . Layer 2
C . Physical
D . Layer 3

View Answer

Answer: B

Explanation:

ARP (Address Resolution Protocol) and MAC (Media Access Control) addresses operate at Layer 2 of the OSI model, which is the Data Link Layer. This layer is responsible for node-to-node data transfer and handling MAC addressing. Issues with ARP or MAC addresses indicate problems at this specific layer, necessitating an investigation into Layer 2.