Which layer of the OSI model does a router primarily operate at?

1. The network layer, layer 3

2. The transport layer, layer 4

3. The data link layer, layer 2

4. The physical layer, layer 1

The network layer, layer 3


Which layer of the OSI model does a standard network switch operate at?

1. Layer 2

2. Layer 4

3. Layer 3

4. Layer 1

Layer 2