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A.Only use fiber in pairs.
B.Configure root guard on your switches.
C.Do not use fiber but use copper.
D.Configure UDLD to prevent one-way link conditions.
A.number of hops
B.priority of the bridge
C.interface bandwidth
D.interface delay
E.None of the above
Refer to the exhibit. Which switching feature is being tested?（）
A.loop guard
B.PortFast
C.root guard
D.BDPU guard
最新試題
aaa架構(gòu)中哪個(gè)是要求用戶輸入用戶名和密碼？
As a CCNA candidate,you must have a firm understanding of the IPv6 address structure.Refer to IPv6 address,could you tell me how many bits are included in each filed?（）
Refer to the exhibit.What is the meaning of the term dynamic as displayed in the output of the show frame-relay map command shown？（）
Which of the following are key characteristics of PPP?（）
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?（）
QoS Mechanisms：?jiǎn)栐诓渴餛oS中要用的3個(gè)mechanisms是什么？
R1 will choose which path to reach 10.1.0.0？
When upgrading the IOS image,the network administrator receives the exhibited error message.What could be the cause of this error?（）
Local Preference？
The following configuration line was added to router R1 Access-list 101 permit ip 10.25.30.00.0.0.255 any What is the effect of this access list configuration?（）