Applications Layer Protocols

Application Layer :- The application layer in the OSI model is the closest layer to the end user which means that the application layer and end user can interact directly with the software application. The application layer programs are based on client and servers. The Application layer includes the following functions: Identifying communication partners:  The application layer identifies the availability of communication partners for an application with data to transmit. Determining resource availability:  The application layer determines whether sufficient network resources are available for the requested communication. Synchronizing communication:  All the communications occur between the applications requires cooperation which is managed by an application layer. Application Layer Protocols :- DNS An application layer protocol defines how the application processes running on different systems, pass the messages to each other. DNS stands for Domain Name System. DNS is a...