WhataretwoadvantagesofLayer2Ethernetswitchesoverhubs?()
A.decreasingthenumberofcollisiondomains
B.filteringframesbasedonMACaddresses
C.allowingsimultaneousframetransmissions
D.increasingthesizeofbroadcastdomains
E.increasingthemaximumlengthofUTPcablingbetweendevices
正确答案:参考B, C
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