What does the application layer handle?

A Top-level communication
B Bottom-level communication
C Both Top-level and Bottom-level communication
D Middle-level communication

Correct Answer: Top-level communication

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 handles the top-level communication that the client and servers use, like HTTP and SMTP for email clients.
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