Question

Which layer of OSI determines the interface of the system with the user?

• A. Network
• B. Application
• C. Data-link
• D. Session

Answer 1

The correct option is B Application

Application layer of OSI determines the interface of the system with the user.

An application layer is an abstraction layer that specifies the shared communications protocols and interface methods used by hosts in a communications network. The application layer abstraction is used in both of the standard models of computer networking: the Internet Protocol Suite (TCP/IP) and the OSI model.

Application Layer - OSI Model. It is the top most layer of OSI Model. ... Other Application protocols that are used are: File Transfer Protocol(FTP), Trivial File Transfer Protocol(TFTP), Simple Mail Transfer Protocol(SMTP), TELNET, Domain Name System(DNS) etc.