Idle
Active
Connect
Open Sent
Established
Which well-known community prevents a BGP speaker from announcing the associated prefix to itsinternal peers?（）A、no-exportB、no-advertiseC、no-readvertiseD、no-export-subconfed
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Which three BGP states are associated with establishing TCP connectivity?（） (Choose three.)A、IdleB、ActiveC、ConnectD、Open SentE、Established
Which three port states are used by RSTP 802.1w？（）A、ListeningB、LearningC、ForwardingD、BlockingE、DiscardingF、Disabled
Which three statements about the route target （RT） are true？ （）A、The RT is a BGP extended community.B、The RT is an 8-byte field that is prefixed to an IPv4 address to make it a unique VPNv4 address.C、When a VPN route that is learned from a CE router is injected into BGP， one or more RTs are associated with itD、The distribution of VPN routing information is controlled through the use of VPN RTsE、When a VPN route that is learned from a CE router is injected into BGP， there is always one RT that is associated with it.
Which three conditions can cause BGP n eighbor establishment to fail?（）A、The IBGP neighbor is not directly connected.B、BGP synchronization is enabled in a transit autonomous system with fully - meshed IBGP neighbors.C、The EBGP neighbor ebgp - multihop option is set to the de fault value.D、The BGP update interval is different between the two BGP neighbors.E、The BGP neighbor is referencing an incorrect autonomous system number in its neighbor statement.F、There is an access list blocking all TCP traffic between the two BGP neighbors.
Which three choices are BGP Extended communities used in MPLS-VPN deployment？（）A、Site Of Origin SOOB、Route-TargetC、Route-DistinguisherD、Domain Identifier BGP extended commumity
The Origin attribute describes the source of the BGP prefix. Which three are valid Origin codes?（） (Choose three.)A、IGPB、BGPC、EGPD、IncompleteE、Anonymous
