单项选择题

Which well-known community prevents a BGP speaker from announcing the associated prefix to itsinternal peers?（）

A. no-export
B. no-advertise
C. no-readvertise
D. no-export-subconfed

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单项选择题
What is the function of the helper router during a restart event in OSPF?（）

A. Sends Rapid Hellos to the restarting router.
B. Maintains Adjancency with restarting router.
C. Sends periodic DD packets to the restarting router.
D. Floods Type 9 LSAs to all routers indicating a restarting event.
问答题
Click the Task button. Place the CoS processing steps in the correct sequence.
多项选择题
Which two steps are needed when configuring multiple RPs using MSDP within a single PIM domain? （）

A. Configure a non-unique address on the loopback interface for use by the PIM RP.
B. Configure MSDP with the unique address (router ID) as the local address of the peer.
C. Configure MSDP with the non-unique address (router ID) as the local address of the peer.
D. Configure a unique address on the loopback interface, used as the PIM RP.