What is the difference between a switch and a hub?
A. Switches operate at physical layer while hubs operate at data link layer
B. Switches operate at data link layer while hubs operate at transport layer
C. Switches operate at data link layer while hubs operate at physical layer
D. Switches operate at transport layer while hubs operate at physical layer
A. Switches operate at physical layer while hubs operate at data link layer
B. Switches operate at data link layer while hubs operate at transport layer
C. Switches operate at data link layer while hubs operate at physical layer
D. Switches operate at transport layer while hubs operate at physical layer