Huawei Certified Network Associate – Routing and Switching (HCNA-RS, legacy) — Question 90

The administrator uses the ping command on the host to test connectivity to the website www.huawei.com.
The command line shows a request time out. The administrator displays the ARP entries for the host.
Which entry will be found in the ARP cache table of the host?

Answer options

• A. The MAC address of the destination www.huawei.com will exist in the ARP cache.
• B. The MAC address of the switch will exist in the ARP cache.
• C. The IP address of the destination www.huawei.com will exist in the ARP cache.
• D. The MAC address of router interface G0/0/0, will exist in the ARP cache.

Correct answer: D

Explanation

The correct answer is D because the ARP cache will store the MAC address of the router interface that the host communicates with, especially when the destination is unreachable. Options A and C are incorrect because ARP does not store the MAC address of the destination host or its IP address; it only maps IP addresses to MAC addresses within the local network. Option B is also incorrect as the switch's MAC address is not relevant in this context.