Question

What layer does Protocol NFS 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: Application, OSI Model: Application, Port: 2049, Stands for: Network File System, Function: File sharing across networks
B) DOD Model: Transport, OSI Model: Network, Port: 111, Stands for: Network File Server, Function: File server communication
C) DOD Model: Network, OSI Model: Data Link, Port: 137, Stands for: Network File Transfer Protocol, Function: File transfer over networks
D) DOD Model: Session, OSI Model: Session, Port: 2048, Stands for: Network File Session Protocol, Function: Session management for file sharing

Answer 1

NFS belongs to the Application layer in both the DOD and OSI models, operates on port 2049, and is primarily used for network file sharing.

Step-by-step explanation:

The Network File System (NFS) is part of the Application layer in both the Department of Defense (DoD) Model and the Open Systems Interconnection (OSI) Model. NFS uses port number 2049 for its operations. Its primary function is to allow for file sharing across different systems over a network, enabling users to access files as if they are local to their own system. This protocol makes it easier for computers to share documents and files over a network.

The Network File System (NFS) operates at the application layer, allowing file sharing between networked systems. In the OSI model, it corresponds to the application layer. Port 2049 is commonly associated with NFS communication. NFS enables users and applications to access and manipulate files over a network as if they were local. It simplifies the sharing of files and resources across diverse platforms and is widely used in distributed computing environments for efficient and seamless file access and management.