Why might an end-system send an Address Resolution Protocol (ARP) message?
(Many answers may apply.)

Question

Why might an end-system send an Address Resolution Protocol (ARP) message? (Many answers may apply.)

Answer

To discover the IP address of another end-system.

Answer

To discover its own MAC address.

Answer

To discover the MAC address of another end-system from the local IP subnet.

Answer

To discover the MAC address of its own default gateway.

Answer

To discover the MAC address of another end-system from a  remote  IP subnet.

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