COMPUTER NETWORKING

DATA LINK LAYER WIRED NETWORKS

WIRED LANS ETHERNET PROTOCOL

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

What protocol is used by a source host to determine the MAC address associated with a known IPv4 address?

A	Address Resolution Protocol (ARP)
B	Neighbor Discovery (ND)
C	Automatic Private IP Addressing (APIPA)
D	Network Address Translation (NAT)

Explanation:

Detailed explanation-1: -The Address Resolution Protocol (ARP) is a communication protocol used for discovering the link layer address, such as a MAC address, associated with a given internet layer address, typically an IPv4 address. This mapping is a critical function in the Internet protocol suite.

Detailed explanation-2: -Address Resolution Protocol (ARP) is a protocol or procedure that connects an ever-changing Internet Protocol (IP) address to a fixed physical machine address, also known as a media access control (MAC) address, in a local-area network (LAN).

Detailed explanation-3: -Address Resolution Protocol (ARP) The Address Resolution Protocol is a layer 2 protocol used to map MAC addresses to IP addresses. All hosts on a network are located by their IP address, but NICs do not have IP addresses, they have MAC addresses. ARP is the protocol used to associate the IP address to a MAC address.

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