Refertotheexhibit.Whichstatementistrueabouttheoutput?()
2021-05-05
A.TheportonswitchCAT1isforwardingandsendingBPDUscorrectly.
B.TheportonswitchCAT1isblockingandsendingBPDUscorrectly.
C.TheportonswitchCAT2isforwardingandreceivingBPDUscorrectly.
D.TheportonswitchCAT2isblockingandsendingBPDUscorrectly.
E.TheportonswitchCAT3isforwardingandreceivingBPDUscorrectly.
F.TheportonswitchCAT3isforwarding，sending，andreceivingBPDUscorrectly.
正确答案：参考A
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