题目内容

Whichtwodesignconcernsmustbeaddressedwhendesigningamulticastimplementation?()

A. onlythelow-order23bitsoftheMACaddressareusedtomapIPaddresses
B. onlythelow-order24bitsoftheMACaddressareusedtomapIPaddresses
C. onlythehigh-order23bitsoftheMACaddressareusedtomapIPaddresses
D. onlythelow-order23bitsoftheIPaddressareusedtomapMACaddresses
E. the0x01004fMACaddressprefixisusedformappingIPaddressestoMACaddresses
F. the0x01005eMACaddressprefixisusedformappingIPaddressestoMACaddresses

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