”Who is 192.168.1.200?

An ARP request is broadcasted and sends the following request.

”Who is 192.168.1.200? Tell 192.168.1.55”

At which of the following layers of the OSI model does this request operate?
A . Application
B . Data link
C . Transport
D . Network
E . Session

View Answer

Answer: B

Explanation:

An ARP request operates at the data link layer of the OSI model. ARP (Address Resolution Protocol) is a protocol that maps IP addresses to MAC addresses on a local area network. It allows devices to communicate with each other without knowing their MAC addresses beforehand. ARP operates at the data link layer (layer 2) of the OSI model, which is responsible for framing and addressing data packets on a physical medium.

Reference: https://www.cisco.com/c/en/us/support/docs/ip/routing-information-protocol-rip/13788-3.html