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Whichtwoofthesearerecommendedpracticeswithtrunks？（）

A.useISLencapsulation
B.use802.1qencapsulation
C.setISLtodesirableandautowithencapsulationnegotiatetosupportILSprotocolnegotiation
D.useVTPservermodetosupportdynamicpropagationofVLANinformationacrossthenetwork
E.setDTPtodesirableanddesirablewithencapsulationnegotiatetosupportDTPprotocol

【参考答案】

B, E

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