A switch is a multi-functional networking device that can operate within several OSI layers. Which layer can a switch not function in?
A. 1
B. 2
C. 3
D. 4
Answer:A
A switch is a multi-functional networking device that can operate within several OSI layers. Which layer can a switch not function in?
A. 1 B. 2 C. 3 D. 4