What do Layer 2 switches use to make a forwarding decision?
A) TCP port number
B) IP subnet
C) UDP port number
D) MAC address
E) Twister spinner
The answer: D) MAC address
Switches use data link information, or MAC addresses, to determine where a frame should be forwarded. If the destination MAC address of a frame is not known by the switch, then the frame is forwarded to all ports.
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Want to know more? Watch “Network Devices.”We use many different network devices to connect our devices together. In this video, you’ll learn about hubs, switches, routers, firewalls, and much more. |
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