Final answer:
Protocol IGRP belongs to the Internet Layer in the DOD model and the Network Layer in the OSI model. It stands for Interior Gateway Routing Protocol, which manages routing within autonomous systems.
Step-by-step explanation:
The correct answer is A) DOD Model: Internet Layer, OSI Model: Network Layer, Port# N/A, Stands for Interior Gateway Routing Protocol, manages routing within autonomous systems.
In the DOD model, the Internet Layer is responsible for addressing, routing, and packaging data for transmission. Protocol IGRP belongs to this layer as it manages routing within autonomous systems.
In the OSI model, the Network Layer is responsible for routing and forwarding data packets. Protocol IGRP belongs to the Network Layer as it handles routing within a network.
Protocol IGRP does not use a specific port number as it is a routing protocol used internally within a network.