Gateway network device
Switch
Layer 5 - Session layer
ODBC and SQL operate at Session Layer.
Session Layer - layer 5Transport Layer - layer 4
If devices are within the same network then they operate at the second layer.
Hubs and repeaters operate at the Physical Layer of the OSI Model. The Physical Layer is the first layer of the OSI Model.
Application Presentation Session
Gateway
network session layer Session Layer (Layer 5) The session layer permits two parties to hold ongoing communications called a session across a network.
This is referred to as Layer 5, the Session Layer.
All network devices have some component that operates at layer 1. Only hubs and repeaters operate entirely at layer 1.
1. Repeaters (Operate at the OSI Physical Layer).2. Bridges (Operate at the OSI Data Link Layer).3. Routers {and Brouters} (Operate at the OSI Network Layer).
Router works in Network Layer of OSI model