Question

What layer does Protocol Ethernet belong to in the DOD model? and in the OSI Model? Port#? What does it stand for and what does it do?

A) DOD Model: Network, OSI Model: Data Link, Stands for: Ethernet, Function: Local area network data link layer
B) DOD Model: Data Link, OSI Model: Physical, Port: 10, Stands for: Network Ethernet Protocol, Function: Networked Ethernet communication
C) DOD Model: Transport, OSI Model: Transport, Port: 123, Stands for: Ethernet Transport Protocol, Function: Transport layer for Ethernet
D) DOD Model: Presentation, OSI Model: Session, Port: 500, Stands for: Presentation Ethernet Protocol, Function: Presentation layer for Ethernet

Answer 1

Ethernet protocol is located at the Data Link layer in both the DOD model and the OSI Model, but it also includes aspects of the Physical layer in the OSI Model. There is no port number for Ethernet as it operates below the transport layer. It is used for local area network communication.

Step-by-step explanation:

The Ethernet protocol belongs to different layers in the DOD model and the OSI Model.

In the DOD model, Ethernet is situated at the Data Link layer, which is responsible for node-to-node data transfer between two directly connected nodes. In contrast, within the OSI Model, Ethernet spans the Data Link layer and includes some aspects of the Physical layer, such as the physical components and media signal transmission.

There is no specific port number associated with Ethernet since it operates below the transport layer where port numbers are defined. Ethernet is a technology for local area networks (LAN) and provides the protocols for devices to format and manage data on the network.