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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.
参考答案
更多 “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.” 相关考题
考题
BGP route dampening is configured on a BGP router.Whose routing behavior is affected by this configuration?()
A. upstream EBGP neighborsB. downstream EBGP neighborsC. upstream IBGP neighbors learned by IBGP peersD. downstream IBGP neighbors learned by IBGP peers
考题
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.
考题
Which option is true regarding the synchronization rule ?()
A. Do not use or internally advertise a route until the route is lear ned from a source other than BGP.B. Do not use or advertise a route until the route is learned from a BGP peer.C. Do not use or advertise routes marked PARTIAL.D. Wait until a CONFIRM message is received before using routes from BGP neighbors.
考题
Which two statements about route redistribution when implementing OSPF are true?()
A. Routes learned using any IP routing protocol can only be redistributed into non IP routing protocols.B. OSPF can import routes learned using EIGRP, RIP, and IS - IS.C. OSPF routes cannot be exported into EIGRP, RIP, an d IS - IS.D. At the interdomain level, OSPF cannot import routes learned using BGP.E. OSPF routes can be exported into BGP.
考题
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.
考题
Which of these best identifies the types of prefixes a router running BGP will advertise to an EBGP peer？ （）A、 prefixes received from any other BGP peer and prefixes locally originated via networkstatements or redistributed to BGPB、 all prefixes in its IP routing tableC、 only prefixes received from EBGP peers and prefixes locally originated via network statements or redistributedD、 only prefixes received from EBGP peers and prefixes received from route reflectorsE、 all prefixes in its routing table except the prefixes received from other EBGP peersF、 all prefixes in its routing table except the prefixes received from other IBGP peers
考题
Router R1, in ASN 11, learns a BGP route from BGP peer R22 in ASN 22. R1 and then uses BGP to advertise the route to R2, also in ASN 11. What ASNs would you see in the BGP table on R2 for this route?（）A、22B、11C、1D、None
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For which routes does LDP advertise a label binding？（）A、all routes in the routing tableB、only the IGP and BGP routes in the routing tableC、only the BGP routes in the routing tableD、only the IGP routes in the routing table
考题
A company has a BGP network and a BGP route of 196.27.125.0/24 that should be propagated toall of the devices. The route is not now in any of the routing tables. The administrator determinesthat an access list is the cause of the problem. The administrator changes the access list to allowthis route， but the route still does not appear in any of the routing tables. What should be done topropagate this route？（）A、Clear the BGP sessionB、Change both the inbound and outbound policy related to this routeC、Use the service-policy command to adjust the QOS policy to allow the route to propagateD、Use the release BGP routing command
考题
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 addedB、floating static route needs to be addedC、bgp backdoor commandD、ospf backdoor command
考题
Which types of prefixes will a router running BGP most likely advertise to an IBGP peer， assuming it is not configured as a route reflector？（）A、prefixes received from any other BGP peer and prefixes locally originated via networkstatements or redistributedB、all prefixes in its routing tableC、prefixes received from EBGP peers and prefixes locally originated via network statements or redistributedD、prefixes received from EBGP peers and prefixes received from route reflectorsE、prefixes received from other IBGP peers， prefixes received from EBGP peers，and prefixes redistributed to BGPF、prefixes received from other IBGP peers and prefixes received from route reflectors
考题
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.
考题
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.
考题
Which of these best identifies the types of prefixes a router running BGP will advertise to an EBGP peer？（）A、prefixes received from any other BGP peer and prefixes locally originated via network statements or redistributed to BGPB、all prefixes in its IP routing tableC、only prefixes received from EBGP peers and prefixes locally originated via network statements or redistributedD、only prefixes received from EBGP peers and prefixes received from route reflectorsE、all prefixes in its routing table except the prefixes received from other EBGP peersF、all prefixes in its routing table except the prefixes received from other IBGP peers
考题
What is the BGP synchronization rule？（）A、Routing information received through an IBGP session is not forwarded to another IBGP neighbor， onlyto EBGP neighborsB、Routing information received through an EBGP session is not forwarded to another EBGP neighbor，only to IBGP neighborsC、BGP neighbor peerings are established and sychronized using the TCP 3-way handshakeD、BGP shall not advertise a route until that route has been learned via an IGP also
考题
BGP route dampening is configured on a BGP router. Whose routing behavior is affected by this configuration?（）A、upstream EBGP neighborsB、downstream EBGP neighborsC、upstream IBGP neighbors learned by IBGP peersD、downstream IBGP neighbors learned by IBGP peers
考题
By default， to which peers will a BGP router advertise routes learned from IBGP peers？（）A、all BGP peersB、all IBGP peersC、all EBGP peersD、all MBGP peers
考题
Which action occurs when the policy main-policy evaluates the BGP route 10.0.55.2/32？（） [edit policy-options] policy-statement test { from { route-filter10.0.0.016/orlongeraccept； route-filter10.0.67.0/24orlangerreject； route-filter10.0.0.0/8orlanger； } then { metric10； community add no-advertise； accept； } } policy-statement main-policy { term only-want-certain-routes { from { policytest； } then { communityadd harry-402； accept； } } } communityno advertise members no-advertise； communityharry-402 members 666：402； [edit protocols] bgp { exportmain-policy； }A、The route is not advertised into BGPB、The route is advertised into BGP with community harry-402.C、The route is advertised into BGP with community no-advertise.D、The route is advertised into BGP with community harry-402 and no-advertise.
考题
What is the first step in BGP route selection?（）A、The local router prefers the route with the shortest as-path.B、The router first verifies that it has a route to thebgp Next Hop IP address.C、The local router prefers the route from the peer with the lowest peerid address.D、The local router prefers the route learned from anebgp peer over a route learned from anibgp peer.
考题
What is the first step in BGP route selection?（）A、The local router prefers the route with the shortest AS Path.B、The local router verifies that it has a route to the BGP Next Hop IP address.C、The local router prefers the route from the peer with the lowest peer ID address.D、The local router prefers the route learned from an EBGP peer over a route learned from an IBGP peer.
考题
单选题What is the first step in BGP route selection?（）A
The local router prefers the route with the shortest AS Path.B
The local router verifies that it has a route to the BGP Next Hop IP address.C
The local router prefers the route from the peer with the lowest peer ID address.D
The local router prefers the route learned from an EBGP peer over a route learned from an IBGP peer.
考题
单选题What is the first step in BGP route selection?（）A
The local router prefers the route with the shortest as-path.B
The router first verifies that it has a route to thebgp Next Hop IP address.C
The local router prefers the route from the peer with the lowest peerid address.D
The local router prefers the route learned from anebgp peer over a route learned from anibgp peer.
考题
单选题Which types of prefixes will a router running BGP most likely advertise to an IBGP peer， assuming it is not configured as a route reflector？ （）A
prefixes received from any other BGP peer and prefixes locally originated via network statements or redistributedB
all prefixes in its routing tableC
prefixes received from EBGP peers and prefixes locally originated via network statements or redistributedD
prefixes received from EBGP peers and prefixes received from route reflectorsE
prefixes received from other IBGP peers， prefixes received from EBGP peers， and prefixes redistributed to BGPF
prefixes received from other IBGP peers and prefixes received from route reflectors
考题
单选题Which types of prefixes will a router running BGP most likely advertise to an IBGP peer， assuming it is notconfigured as a route reflector？（）A
prefixes received from any other BGP peer and prefixes locally originated via network statements or redistributedB
all prefixes in its routing tableC
prefixes received from EBGP peers and prefixes locally originated via network statements or redistributedD
prefixes received from EBGP peers and prefixes received from route reflectorsE
prefixes received from other IBGP peers， prefixes received from EBGP peers，and prefixes redistributedto BGPF
prefixes received from other IBGP peers and prefixes received from route reflectors
考题
单选题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 addedB
floating static route needs to be addedC
bgp backdoor commandD
ospf backdoor command
考题
单选题What is the BGP synchronization rule？（）A
Routing information received through an IBGP session is not forwarded to another IBGP neighbor， onlyto EBGP neighborsB
Routing information received through an EBGP session is not forwarded to another EBGP neighbor，only to IBGP neighborsC
BGP neighbor peerings are established and sychronized using the TCP 3-way handshakeD
BGP shall not advertise a route until that route has been learned via an IGP also
考题
单选题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.
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