The layer of the OSI model that establishes connection of user, maintains it and terminates it
Correct answer: D. Session
- A. Presentation
- B. Application
- C. Transport
- D. Session
Explanation
The session layer is responsible for managing the dialog between two communicating applications. It establishes, manages, and terminates sessions between applications. This includes negotiating the type of session (e.g., full-duplex, half-duplex), synchronizing data flow, and error recovery.
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Networking covers LAN, MAN, WAN and wireless networks, network topologies, transmission media, devices such as switches, routers and modems, and the OSI and TCP/IP models. Internet concepts include IP addresses, DNS, URLs, web browsers, email, protocols such as HTTP, HTTPS, FTP and SMTP, and basic network security.
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