Question

Network File system (NFS) and Structured Query Language (SQL) are examples of which OSI model layer?

a. Presentation Layer
b. Application Layer
c. Session Layer
d. Transport Layer

Answer 1

NFS and SQL operate at the Application Layer, which is the seventh layer of the OSI model, providing network services directly to user applications.

Step-by-step explanation:

The Network File System (NFS) and Structured Query Language (SQL) are both examples of services and protocols that operate at the Application Layer of the OSI model layer. The Application Layer is the seventh layer of the Open Systems Interconnection (OSI) model and is the closest to the end user. It provides network services to the applications of the user and determines the identity and availability of communication partners for an application with data to transmit.