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BGP route dampening is configured on a BGP router. Whose rou

题目
单选题
BGP route dampening is configured on a BGP router. Whose routing behavior is affected by this configuration?（）
A

upstream EBGP neighbors

B

downstream EBGP neighbors

C

upstream IBGP neighbors learned by IBGP peers

D

downstream IBGP neighbors learned by IBGP peers

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第1题：

BGP route dampening is configured on a BGP router.Whose routing behavior is affected by this configuration?()

A. upstream EBGP neighbors

B. downstream EBGP neighbors

C. upstream IBGP neighbors learned by IBGP peers

D. downstream IBGP neighbors learned by IBGP peers


参考答案：A

第2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3题：

You receive an EBGP route configured with the no－export community set.To which types of peers can you send this route?() (Choose two.)

A. no BGP peers

B. all I-BGP peers

C. all E-BGP peers within your global AS

D. all E-BGP peers outside your global AS


参考答案：B, C

第4题：

You have a router running BGP for the MPLS network and OSPF for the local LAN network at the sales office. A route is being learned from the MPLS network that also exists on the OSPF local network. It is important that the router chooses the local LAN route being learned from the downstream switch running OSPF rather than the upstream BGP neighbor. Also， if the local OSPF route goes away， the BGP route needs to be used. What should be configured to make sure that the router will choose the LAN network as the preferred path？（）

  • A、static route needs to be added
  • B、floating static route needs to be added
  • C、bgp backdoor command
  • D、ospf backdoor command

正确答案:C

第5题：

What is the most likely reason that an IBGP route that has been selected as a best route is not entered into the IP routing table?（）

  • A、Route reflectors are not passing updates properly.
  • B、BGP synchronization has been enabled.
  • C、The next-hop address is unreachable.
  • D、No loopback interface has been configured on a router.

正确答案:B

第6题：

Which JUNOS software show command allows you to view BGP attributes for a given route?()

A. show route bgp

B. show route extensive

C. show bgp attribute

D. show bgp neighbor


参考答案：B

第7题：

A router is running BGP and receives more than one route for a particular prefix. Assume all the routes for this prefix have the same attributes.Which three path features would be reasons be for the rou ter to ignore some of the routes and not consider them as candidates for the best path?（）

A. paths from an internal BGP (iBGP) neighbor if the local autonomous system (AS) appears in the AS_PATH

B. paths for which the NEXT_HOP is inaccess ible

C. paths from an external BGP (eBGP) neighbor if the local autonomous system (AS) appears in the AS_PATH

D. paths for which the NEXT_HOP is accessible

E. paths that are marked as synchronized in the show ip bgp output

F. paths that are marked as not synchronized in the show ip bgp output


参考答案：B, C, F

第8题：

A BGP router is configured with bgp dampening 8 300 1500 20 route－map 1 .What does the value of 20 represent?()

A. reuse

B. suppress

C. half-life

D. max-suppress-time


参考答案：D

第9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10题：

哪个命令使你能看到import policy应用在BGP相邻体的效果（）

  • A、show route protocol bgp  
  • B、show route protocol bgp next-hop address   
  • C、show route protocol bgp export-policy   
  • D、show route advertising-protocol bgp neighbor-address

正确答案:A

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