A.Listening
B.Learning
C.Forwarding
D.Blocking
E.Discarding
F.Disabled
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A.lowest root bridge id；lowest sender bridge id；lowest port id；lowest root path cost
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Refer to the exhibit. In this network，R1 has been configured to advertise a summary route， 192.168.0.0/22，to R2. R2 has been configured to advertise a summary route，192.168.0.0/21， to R1. Both routers have been configured to remove the discard route （the route to null created when a summary route is configured） by setting the administrative distance of the discard route to 255. What will happen if R1 receives a packet destined to 192.168.3.1？ （）
A.The packet will loop between R1 and R2
B.It is not possible to set the administrative distance on a summary to 255
C.The packet will be forwarded to R2，where it will be routed to null0
D.The packet will be dropped by R1，since there is no route to 192.168.3.1
最新試題
當(dāng)將多個(gè)交換機(jī)加入到MST region當(dāng)中會(huì)發(fā)生什么（what happen）？
How should arouter that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates?（）
QoS機(jī)制中的分類，采用ip數(shù)據(jù)包中的哪個(gè)字段？
what is the advantage of policing opposite to shaping？
QoS Mechanisms：?jiǎn)栐诓渴餛oS中要用的3個(gè)mechanisms是什么？
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?（）
什么是NAT？
four switches， which one will be root switch.（no pic）.
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?（）
The Frame Relay network in the diagram is not functioning properly.What is the cause of the problem?（）