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What action will a BGP route reflector take when it receives

题目
单选题
What action will a BGP route reflector take when it receives a prefix marked with the community attribute NO ADVERTISE from a client peer？（）
A

It will advertise the prefix to all other client peers and non-client peers.

B

It will not advertise the prefix to EBGP peers.

C

It will only advertise the prefix to all other IBGP peers.

D

It will not advertise the prefix to any peers.

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相似问题和答案

第1题：

Which action occurs when the static route 10.0.55.2／32 is evaluated by the policy main－policy? ()

A. The route is advertised into BGP.

B. The route is suppressed from BGP.

C. The route is advertised into BGP and goes only one hop.

D. The route is advertised into BGP and can only propagate throughout the neighboring AS.


参考答案：B

第2题：

What best explains the BGP route-reflector function？（）

  • A、BGP route-reflector should be in forwarding path of data coming from its clients
  • B、BGP route-reflector does not have to be in the forwarding path of data coming from its clients
  • C、BGP route-reflector will stop reflecting the routes if they’re not directly-connected clients
  • D、None of the above

正确答案:B

第3题：

Which action does a BGP speaker take when it detects that the reset state bit is set in an openmessage?()

A. It tears down the BGP session.

B. It sends a restart message to the peer.

C. It marks all routes from that peer as stale.

D. It sends a BGP refresh message to the peer


参考答案：C

第4题：

What does a BGP route reflector do when reflecting a route?（）

  • A、It prepends its cluster identifier to the route's cluster list.
  • B、It prepends its own originator identifier to the route's cluster list.
  • C、It replaces the route's cluster identifier with its own cluster identifier.
  • D、It replaces the route's originator identifier with its originator identifier.

正确答案:A

第5题：

In BGP routing，what does the rule of synchronization mean？（）

  • A、A BGP router can only advertise an EBGP learned route，provided that the route is an IGP route in the routing table.
  • B、A BGP router can only advertise an IBGP learned route，provided that the route is an IGP route in the routing table.
  • C、A BGP router can only advertise an IBGP learned route，provided that the route is an IGP route that is not in the routing table.
  • D、A BGP router can only advertise an EBGP learned route，provided that the route is a metric of 0 in the BGP table.

正确答案:B

第6题：

Which action occurs when the BGP route 20.1.0.0／16 is evaluated by the policy expression?()

A. The route is not announced.

B. The route is announced with community 90:1 added.

C. The route is announced with community 100:1 added.C.The route is announced with community 100:1 added.

D. The route is announced with communities 90:1 and 100:1 added.D.The route is announced with communities 90:1 and 100:1 added.


参考答案：D

第7题：

what is a route reflector？


正确答案: R.oute reflector is used to reduce IBGP connections in an AS contains large number of IBGP
P.eers. A router is configured as a route reflector （RR）， and other IBGP routers， known as clients， peer with the RR only. Route reflectors work by relaxing the rule that BGP router cannot advertise routes learned from IBGP peer to any other IBGP peers.BGP route can be reflected by RR.

第8题：

Which two reflect best practices for client peering sessions in a BGP route reflection network? ()(Choose two.)

A. peer with route-reflectors within the cluster

B. peer with route-reflectors outside the cluster

C. peer with route-reflector-clients within the cluster

D. peer with route-reflector-clients outside the cluste


参考答案：A, C

第9题：

In BGP， we can use Route Reflector and full mesh. Why should we use these？


正确答案:The rule using for IBGP loop prevention is described as bellow：routes learned from IBGP peer will not be advertised to any other IBGP neighbor. So full mesh or route reflector is used to make sure all the BGP routers within the AS can learn the advertised routes.Route reflector relaxes the IBGP loop prevention rule by reflecting routes from client to other clients and non-clients and from non-clients to clients.

第10题：

What action will a BGP route reflector take when it receives a prefix marked with the community attribute NO ADVERTISE from a client peer？（）

  • A、It will advertise the prefix to all other client peers and non-client peers.
  • B、It will not advertise the prefix to EBGP peers.
  • C、It will only advertise the prefix to all other IBGP peers.
  • D、It will not advertise the prefix to any peers.

正确答案:D

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