Which layer of the OSI model is responsible for session management?

The session management function is specifically the responsibility of the Session Layer in the OSI model. This layer is crucial for establishing, managing, and terminating sessions between applications. It provides mechanisms to control the dialogue between two devices, which includes handling the setup and preservation of the session state, ensuring that the necessary resources and protocols are in place for a reliable exchange of information. The Session Layer works to maintain ongoing communication, allowing processes to exchange data in a structured way.

By managing sessions, this layer ensures that both ends of a communication can coordinate their actions, synchronize their operations, and recover from interruptions. Functions such as checkpoints and recovery methods are also handled at this layer, further emphasizing its role in maintaining the overall connection and communication between applications.