Which OSI layer is responsible for setting up, maintaining, and ending ongoing information exchanges across a network?1 point6325

The OSI (Open Systems Interconnection) model is a conceptual framework used to understand and implement network protocols in seven layers. Each layer has specific functions and responsibilities. To determine which OSI layer is responsible for setting up, maintaining, and ending ongoing information exchanges across a network, let's break down the layers:

1. Physical Layer (Layer 1): Deals with the physical connection between devices, including cables, switches, and other hardware.
2. Data Link Layer (Layer 2): Manages the node-to-node data transfer and handles error detection and correction from the physical layer.
3. Network Layer (Layer 3): Responsible for data routing, packet forwarding, and addressing.
4. Transport Layer (Layer 4): Ensures complete data transfer and error recovery, providing end-to-end communication.
5. Session Layer (Layer 5): Manages sessions between applications. It is responsible for setting up, maintaining, and ending ongoing information exchanges (sessions) across a network.
6. Presentation Layer (Layer 6): Translates data between the application layer and the network, handling data encryption, decryption, and compression.
7. Application Layer (Layer 7): Provides network services directly to end-user applications.

Given this breakdown, the Session Layer (Layer 5) is the one responsible for setting up, maintaining, and ending ongoing information exchanges across a network. It establishes, manages, and terminates the connections (sessions) between applications.

So, the correct answer is the Session Layer (Layer 5).