单项选择题
Which of the following conditions guarantees that a broadcast storm cannot occur？（）
A.a native VLAN mismatch on either side of an 802.1Q link B.BPDU filter configured on a link to another switch C.Spanning Tree Protocol enabled on both Layer 2 and multilayer switches D.PortFast enabled on all access and trunk ports
单项选择题 WhichstatementistrueregardingthePortAggregationProtocol？（）
单项选择题 WhichcommandalonewilldisabletrunkingonaLayer2switchport？（）
单项选择题 WhichconfigurationoptionwillcausethelinkbetweentwoCisco3600SeriesMultiservicePlatformstobecomeafunctionaltrunk？（）
