Which protocol is used to map a IP address to a MAC address on a LAN by sending a broadcast request and receiving a response?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Study for the Network Security Instructional Terminology Test. Enhance your knowledge with multiple choice questions, each accompanied by hints and explanations. Ensure readiness for your exam!

Multiple Choice

Which protocol is used to map a IP address to a MAC address on a LAN by sending a broadcast request and receiving a response?

Explanation:
Resolving an IPv4 address to a MAC address on a local network is done with ARP. When a host needs to send a frame to another device on the same LAN, it first checks its ARP cache. If the MAC isn’t known, it broadcasts an ARP request asking who has that IP. The device with that IP replies with an ARP reply that includes its MAC address, and the requester stores this mapping for future use. This lets IP packets be carried inside Ethernet frames, since the data link layer requires a MAC. ARP works at the interaction of the network and data-link layers and is specific to IPv4; IPv6 uses Neighbor Discovery Protocol for a similar function. ARP requests are broadcast to reach the owner, and replies are sent back directly to the requester.

Resolving an IPv4 address to a MAC address on a local network is done with ARP. When a host needs to send a frame to another device on the same LAN, it first checks its ARP cache. If the MAC isn’t known, it broadcasts an ARP request asking who has that IP. The device with that IP replies with an ARP reply that includes its MAC address, and the requester stores this mapping for future use. This lets IP packets be carried inside Ethernet frames, since the data link layer requires a MAC. ARP works at the interaction of the network and data-link layers and is specific to IPv4; IPv6 uses Neighbor Discovery Protocol for a similar function. ARP requests are broadcast to reach the owner, and replies are sent back directly to the requester.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy