Cisco 200-125 Exam

Refer to the exhibit. After HostA pings HostB, which entry will be in the ARP cache of HostA to support this transmission?

Answer: Option D.

Hosts A and B are on different subnets and are separated by routers, so the MAC address of HostB will never get back to HostA: Router2 will decapsulate the frames that HostB sends. Router1 will re-encapsulate the ping packet sent by HostB and put its own MAC address in the frame. Therefore, HostA will put and 000f.2480.8916 into its ARP table as a dynamic entry.

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