Which OSI layers do switches and routers primarily operate in?

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Multiple Choice

Which OSI layers do switches and routers primarily operate in?

Explanation:
In networking, devices are described by the OSI layer they mainly operate at. Switches primarily work at the data link layer, using MAC addresses to forward frames within a local network. Routers, on the other hand, operate at the network layer, forwarding packets between different networks based on IP addresses and routing tables. Some devices can do additional routing at higher or lower layers (multilayer switches can route at times), but the standard behavior is switches at Layer 2 and routers at Layer 3. Layer 1 is the physical layer, which isn’t about making forwarding decisions; Layer 4 deals with transport ports, which isn’t the router’s primary role; and a router functioning primarily at Layer 2 would overlook the network-bound routing responsibilities.

In networking, devices are described by the OSI layer they mainly operate at. Switches primarily work at the data link layer, using MAC addresses to forward frames within a local network. Routers, on the other hand, operate at the network layer, forwarding packets between different networks based on IP addresses and routing tables. Some devices can do additional routing at higher or lower layers (multilayer switches can route at times), but the standard behavior is switches at Layer 2 and routers at Layer 3. Layer 1 is the physical layer, which isn’t about making forwarding decisions; Layer 4 deals with transport ports, which isn’t the router’s primary role; and a router functioning primarily at Layer 2 would overlook the network-bound routing responsibilities.

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