In a computer network, what is the main function of the application layer?

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Accepted Answer

To provide network services to the applications - The main function of the Application Layer (Layer 7 of the OSI model) is to provide network services to the applications that users interact with, such as web browsers, email clients, and file transfer tools.

This layer allows software programs to use the network by providing services like HTTP, FTP, SMTP, and DNS. It helps users send emails, browse websites, download files, and more — all by using the network behind the scenes. Without the application layer, users wouldn’t be able to access or use network-based applications easily.

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