200-120 Exam Question No 15

Question No 15:

For what two purposes does the Ethernet protocol use physical addresses? (Choose two.)

A. To uniquely identify devices at Layer 2
B. To allow communication with devices on a different network
C. To differentiate a Layer 2 frame from a Layer 3 packet
D. To establish a priority system to determine which device gets to transmit first
E. To allow communication between different devices on the same network
F. To allow detection of a remote device when its physical address is unknown

Answer: A,E