Question

What layer does Protocol BGP 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: Internet Layer, OSI Model: Network Layer, Port# 179, Stands for Border Gateway Protocol, manages routing between autonomous systems.
B) DOD Model: Host-to-Host Layer, OSI Model: Transport Layer, Port# 179, Stands for Business Graphics Protocol, facilitates graphical data exchange.
C) DOD Model: Network Access Layer, OSI Model: Data Link Layer, Port# 179, Stands for Border Gateway Protocol, handles inter-domain routing.
D) DOD Model: Application Layer, OSI Model: Application Layer, Port# 179, Stands for Business Graphics Protocol, supports graphical application communication.

Answer 1

BGP belongs to the Internet Layer in the DoD model and the Network Layer in the OSI model, uses port number 179, stands for Border Gateway Protocol, and manages routing between autonomous systems.

Step-by-step explanation:

The Border Gateway Protocol (BGP) is a fundamental protocol that underpins the internet's ability to route traffic between different networks. In the context of networking models, for the Department of Defense (DoD) model, BGP falls within the Internet Layer. In the Open Systems Interconnection (OSI) model, BGP is part of the Network Layer. Additionally, the port number used by BGP is 179. The term BGP stands for Border Gateway Protocol, and its primary function is to manage routing information between autonomous systems (AS) on the internet. Autonomous systems are large collections of IP networks and routers under the control of one entity that present a common routing policy to the internet.