Whichtwoareeffectsofconnectinganetworksegmentthatisrunning802.1Dtoanetworksegmen
A.theentirenetworkswitchesto802.1DandgeneratesBPDUstodeterminerootbridfestatus.
B.Amigrationdelayofthreesecondsoccurswhentheportthatisconnectedtothe802.1Dbridgecomesup
C.Theentirenetworkreconvergesandauniquerootbriddgeforthe802.1Dsegment，andarootbridgeforthe802.1Wsegment，ischosen
D.thefirsthop802.1wswitchthatisconnectedtothe802.1Drunsentirelyin802.1DCompatibilitymodeandconvertstheBPDUstoeither802.1Dor802.1Wsegmentsofthenetwork
E.Classic802.1Dtimers，SuchasforwardDelayandMax-age，willonlybeusedasabackup，andwillnotbenecessaryifpoint-to-pointlinksandedgeprotsareproperlyidentifiedandsetbytheadministrator.
正确答案：参考B, D
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