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Host TestKingA needs to communications with the e-mail server shown above. What address will be placed on the destination address field of the frame when it leaves host TestKingA?

A TestKing office's network topology is shown in the diagram below:



A. The MAC address of TestKingA
B. The MAC address of switch TestKing1
C. The MAC address of the E0 interface of the TestKing3 router.
D. The MAC address of the E1 interface of the TestKing3 router.
E. The MAC address of switch TestKing2
F. The MAC address of the email server

Answer: C

Explanation:

If the destination host is in the remote segment than the router will change the MAC
address of the source to its own. The inverse ARP protocol is by default on. Remember
that IP address is not changed after forwarding. The MAC address is changed after
crossing each broadcast domain.