Computer Science for IGCSE & O level - Data Transmission (Section 5 - No. 26)

Which of the following is a function of the 'application layer' of the OSI model?

Providing reliable, connection-oriented communication.

Formatting data before transmission.

Providing network services to applications.

Establishing, managing and terminating sessions.

The application layer (Layer 7) provides the interface through which applications access network services.