Application Layer of the OSI model. by

Uses of the Application Layer

michael_cook — 2015-04-27 14:34:03 UTC

The application layer is used for a wide variety of applications, such as authentication, error checking, and redirection of data. The application layer is most commonly used to retrieve files from other system resources when actions cannot be performed locally. For example, the HTTP protocol that is used in virtually all web browsers is used by the application layer to request files on third-party servers and networks and display them to the user.

What is the Application Layer

marcuscoupland — 2015-04-27 14:37:36 UTC

The application layer is the seventh layer of the Open Systems Interconnection (OSI) model. It is also the only layer that actively interacts with users. The layer has multiple responsibilities, such as error handling, recovery and data flow.

Being Top

michael_cook — 2015-04-27 14:39:39 UTC

As the top layer, the application layer is the only layer that does not provide any services to the layer above it. Instead, it provides services to programs that want to use the network and to the user.

Application Layers Responsibilities

michael_cook — 2015-04-27 14:44:21 UTC

The Application Layer enables the user, whether human or software, to access the network. It provides user interfaces and support for services such as e-mail, shared database management and other types of distributed information services.

Services of the Application Layer

marcuscoupland — 2015-04-27 14:48:05 UTC

Simple Mail Transfer Protocol
File Transfer
Web Surfing
Web Chat
Email Clients
Network Data Sharing
Virtual Terminals
Various File and Data Operations

The Application Layer of the OSI Model (Layer 7)

michael_cook — 2015-04-27 14:49:47 UTC

How the layer works

michael_cook — 2015-04-28 08:27:09 UTC