Question 2599 – Data-Structures
November 28, 2023GATE 2018
November 28, 2023Question 7824 – Computer-Networks
Suppose that in an IP-over-Ethernet network, a machine X wishes to find the MAC address of another machine Y in its subnet. Which one of the following techniques can be used for this?
Correct Answer: D
Question 9 Explanation:
Address Resolution Protocol (ARP) is a protocol for mapping an Internet Protocol address (IP address) to a physical machine address (MAC) that is recognized in the local network.
Since both are present in the same subnet thus an ARP request packet can be sent as broadcast MAC address, all will see but the only destination will reply as a unicast reply.
Since both are present in the same subnet thus an ARP request packet can be sent as broadcast MAC address, all will see but the only destination will reply as a unicast reply.
Video Reference :
http://eclassesbyravindra.com/mod/page/view.php?id=147
X sends an ARP request packet to the local gateway’s IP address which then finds the MAC address of Y and sends to X
X sends an ARP request packet with broadcast IP address in its local subnet
X sends an ARP request packet to the local gateway’s MAC address which then finds the MAC address of Y and sends to X
X sends an ARP request packet with broadcast MAC address in its local subnet
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