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