COMPUTER NETWORKING

Detailed explanation-1: -The application layer sits at Layer 7, the top of the Open Systems Interconnection (OSI) communications model. It ensures an application can effectively communicate with other applications on different computer systems and networks.

Detailed explanation-2: -Application layer is where the actual communication is initiated and reflects. Because this layer is on the top of the layer stack, it does not serve any other layers. Application layer takes the help of Transport and all layers below it to communicate or transfer its data to the remote host.

Detailed explanation-3: -An application layer is an abstraction layer that specifies the shared communications protocols and interface methods used by hosts in a communications network. An application layer abstraction is specified in both the Internet Protocol Suite (TCP/IP) and the OSI model.

Detailed explanation-4: -HTTP is an application layer protocol used for transferring information between computers on the World Wide Web. HTTP is based on a request/response standard between a client; usually the host and a server, a web site.