HPE6-A85 · Question #64

Describe the functionality of ARP.

The correct answer is C. ARP maps layer-3 IP addresses to layer-2 MAC addresses. The Address Resolution Protocol (ARP) is used to map layer-3 IP addresses to layer-2 MAC addresses. When a device on a network wants to communicate with another device, it uses ARP to find the MAC address that corresponds to the IP address it wishes to communicate with…

Fundamentals of Campus Access Networking

Question

Options

AClients do not have an ARP cache and always ask for the default gateway.
BARP maps MAC addresses to switch ports.
CARP maps layer-3 IP addresses to layer-2 MAC addresses.
DARP uses multicast to build the ARP table.

How the community answered

(48 responses)

A
4% (2)
B
2% (1)
C
94% (45)

Explanation

The Address Resolution Protocol (ARP) is used to map layer-3 IP addresses to layer-2 MAC addresses. When a device on a network wants to communicate with another device, it uses ARP to find the MAC address that corresponds to the IP address it wishes to communicate with, allowing it to construct a frame for the local network.

Topics

#ARP#Layer 2#MAC-IP mapping#Layer 3

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