Last Updated on October 29, 2020 by Admin
Refer to the exhibit.
What does R1 use as the MAC address of the destination when constructing the frame that will go from R1 to Server B?
- If the destination MAC address that corresponds to the IPv4 address is not in the ARP cache, R1 sends an ARP request.
- The packet is encapsulated into a PPP frame, and R1 adds the PPP destination address to the frame.
- R1 uses the destination MAC address of S1.
- R1 leaves the field blank and forwards the data to the PC.
Answers Explanation & Hints: Communication inside a local network uses Address Resolution Protocol to obtain a MAC address from a known IPv4 address. A MAC address is needed to construct the frame in which the packet is encapsulated.