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