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A.loop guard
B.storm control
C.storm suppression
D.broadcast suppression
E.BPDU guard
A.The IOS default is for a last-hop router to trigger a switch to the shortest path tree as soon as a new source is detected on the shared tree.
B.The IOS default is for every one of the routers on the shared tree to trigger a switch to the shortest path tree as soon as a new source is detected on the shared tree.
C.The default behavior of switching to the shortest path tree as soon as a new source is detected on the shared tree can be disabled by setting the value in the ip pim spt-threshold command to "infinity."
D.The default behavior of switching to the shortest path tree as soon as a new source is detected on the shared tree can be disabled by setting the value in the ip pim spt-threshold command to "zero."
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.
A.Multicast Source Discovery Protocol mesh-groups must be configured between the two anycast RPs.
B.The RPs must be within the same IGP domain.
C.Multicast Source Discovery Protocol must be configured between the two anycast RPs.
D.The two anycast RPs must be IBGP peers.
A.enable a Cisco router to "passively" listen to Auto-RP packets without the router actively sending or forwarding any of the packets
B.allow Auto-RP packets in groups 224.0.1.39 and 224.0.1.40 to be flooded in dense mode out interfaces configured with the ip pim sparse-mode command
C.enable the use of Auto-RP on a router
D.configure the router as an Auto-RP mapping agent
A.PIM join messages are sent every 60 seconds to refresh the upstream router’s mroute state for the multicast tree.
B.Routers send a PIM join acknowledgement in response to each PIM join message received from a downstream router.
C.PIM join messages are only sent when the multicast distribution tree is first being established.
D.PIM join messages are sent every three minutes to refresh the upstream router’s mroute state for the multicast tree.
A.The source must send a PIM Register message to the rendezvous point （RP）
B.The source must first join the multicast group using IGMP before sending
C.The source must perform a Request to Send （RTS） and Clear to Send （CTS） handshake with the PIM designated router （DR）
D.No control plane signaling needs to be performed；the source can simply begin sending on the local subnet
最新試題
Refer to the exhibit.Which statement describes DLCI 17?（）
一堆交換機(jī)一個(gè)server、一個(gè)transpare，問配置prune在哪里配置？
Refer to the exhibit.How many broadcast domains exist in theexhibited topology？（）
什么是NAT？
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?（）
兩ebgp鄰居發(fā)路由過來 ，哪些屬性重置？
When upgrading the IOS image,the network administrator receives the exhibited error message.What could be the cause of this error?（）
what is the advantage of policing opposite to shaping？
Which of the following are key characteristics of PPP?（）
What is method list for configure aaa？