014.01.62.2. How does the ARP cache facilitate efficient communication in a network, and why is it essential for the cache to be maintained by a host using Ethernet as its physical layer and IP as the network layer?
This question explores the candidate's understanding of the ARP cache's purpose and its significance in optimizing network performance. It also evaluates their knowledge of the relationship between Ethernet and IP layers in networking.
It is essesntial for the host using Ethernet as its physical layer and IP as the network layer because network layer maintains a small table called an ARP cache that maps IP addresses to MAC addresses.
