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A.Only UplinkFast and BackboneFast are specified in 802.1w；PortFast must be manually configured.
B.Only PortFast is specified in 802.1w；UplinkFast and BackboneFast must be manually configured.
C.None of the proprietary Cisco enhancements are specified in 802.1w.
D.PortFast，UplinkFast，and BackboneFast are specified in 802.1w.
最新試題
Local Preference？
一堆交換機一個server、一個transpare，問配置prune在哪里配置？
Refer to the exhibit.The network administrator is in acampus building distant from Building B.WANRouter is hosting a newly installed WAN link on interface S0/0.The new link is not functioning and the administrator needs to determine if the correct cable has been attached to the S0/0 interface.How can the administrator accurately verify the correct cable type on S0/0 in the most efficient manner?（）
A network administrator is troubleshooting the OSPF configuration of routers R1 and R2.The routers cannot establish an adjacency relationship on their common Ethernet link.The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2.Based on the information in the graphic,what is the cause of this problem?（）
aaa架構中哪個是要求用戶輸入用戶名和密碼？
如何實現(xiàn)擁塞避免？
What field in IP packet is used for classification by QOS？
QoS機制中的分類，采用ip數(shù)據包中的哪個字段？
兩ebgp鄰居發(fā)路由過來 ，哪些屬性重置？
What is method list for configure aaa？