Which of the following statements is true?
A. Switches work at the physical layer.
B. Switches work at the network layer.
C. Routers work at the network layer.
D. Routers work at the physical layer.
Which of the following statements is true?
A. Switches work at the physical layer.
B. Switches work at the network layer.
C. Routers work at the network layer.
D. Routers work at the physical layer.