How do network bridges and repeaters function in a network, and at which OSI layers do they operate?

Explain the concept of a Layer 3 switch and its role in routing and switching in the OSI model.

Discuss the functions of a switch in the OSI model and how it operates at the data link layer.

Explain the role of a network switch in the OSI model. What layer does it primarily operate at, and how does it facilitate communication between devices?

At which OSI layer do routers primarily operate, and what is their role in network communication?

Explain how a router functions within the OSI model. What layer does it primarily operate in, and how does it facilitate the routing of data between different networks?

The following benefits and disadvantages of circuit switch networks and packet switch networks should be included in this section:

Unlike datagram and virtual-circuit networks, circuit-switched networks do not need a routing or switching table to establish the output port from which destination-related data may be sent. Explain the cause of this disparity.