Discussion
What are the distinct functions of layer 2 switching that increase available bandwidth on the network?
1.Address learning
2.Routing
3.Forwarding and filtering
4.Creating network loops
5.Loop avoidance
6.IP addressing
Answer: A
Correct answer: 1, 3 and 5
The three functions of a layer 2 switch are address learning, forwarding and filtering, and loop avoidance. Learning and forwarding are what increase the available bandwidth, by sending each frame only where it needs to go instead of to every port, and loop avoidance through STP is what makes the redundancy safe. Routing and IP addressing are layer 3, and creating loops is the fault being prevented.
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