Question

Which OSI layer assumes responsibility for managing network connections between applications?

1) Network layer
2) Data link layer
3) Application layer
4) Session layer

Answer 1

The Session layer of the OSI model is responsible for managing network connections between applications, ensuring reliable data transmission.

Step-by-step explanation:

The OSI layer that assumes responsibility for managing network connections between applications is the Session layer. This layer (Layer 4) establishes, manages, and terminates sessions between two communicating hosts. The Session layer provides the control structures for communication between applications. It is involved in session checkpointing and recovery, which means it ensures reliable data transmission even across a series of different network connections.