For what two purposes does the Ethernet protocol use physical addresses?
- to uniquely identify devices at Layer 2
- to allow communication with devices on a different network
- to differentiate a Layer 2 frame from a Layer 3 packet
- to establish a priority system to determine which device gets to transmit first
- to allow communication between different devices on the same network
- to allow detection of a remote device when its physical address is unknown
Related exam: CA201
