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多項(xiàng)選擇題

Bridges and switches are Layer 2 devices that provide the same basic functionality but that also have some differences. Which two traits apply to switches only?()

A. supports Layer 2 VLANs
B. segment LANs
C. are faster because forwarding decisions are made on hardware
D. typically have fewer ports because forwarding decisions are made in software
E. flood frames out all ports

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