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 th

题目

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

相似考题

1.Which router translates the Type 7 LSAs into Type 5 LSAs, according to RFC 1587 (OSPF NSSAOption) in an OSPF NSSA with more than one ABR?()A. The router receiving the route translates the Type 7 LSA into a Type 5 LSA.B. The ABR with the lowest router ID translates all Type 7 LSAs into Type 5 LSAs.C. The ABR with the highest router ID translates all Type 7 LSAs into Type 5 LSAs.D. All ABRs translate the Type 7 LSAs into Type 5 LSAs depending on which one has the lowest cost to the route.

2.The fol lowing line of output was extracted from the output of the show ip bgp command on Router R1. Which of the following can be determined from this output?（）Network Next Hop Metric LocPrf Weight Path* 130.1.1.0/28 1.1.1.1 0 1 2 3 4 iA. The route is learne d from an eBGP peerB. The route has no more than three ASNs in the AS_PatHC. The route is the best route for this prefixD. None of these facts can be positively determined by this output

3.Based on the show ip route isis output on R1, which statement is true? ()A. The i su 10.1.0.0/23 route is a suppressed route.B. The i su 10.1. 0.0/23 route is a summary route.C. The i su 10.1.0.0/23 route is an IS - IS external route.D. The R1 IS - IS router is an ASBR.E. The R1 IS - IS router is an ABR that belongs to multiple IS - IS areas.F. The R1 IS - IS router is performing route aggregation and is suppressing the more specific 10.1.0.0/23 prefix.

4.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.

更多“A router is running BGP and receives more than one route for a particular prefix. Assume a ”相关问题

  • 第1题：

    Refer to the exhibit. When running OSPF, What would cause router A not to form an adjacency with router B?()

    A.The loopback addresses are on different subnets

    B.The value of the dead timers on the router are different

    C.Route summarization is enabled on both routers

    D.The process indentifier on router A is different than the process identifier on router B


    参考答案：B

  • 第2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3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4题：

    A router has two paths to reach another network in a different autonomous system. Neither route was generated by the local router and both routes have the same default weight an d local preference values. Which statement is true about how BGP would select the best path?（）

    • A、To influence one route to be preferred, its default local preference value will be changed via the use of the command bgp default local - preference 50
    • B、Th e router will prefer the shortest autonomous system path
    • C、If the command bgp always - compare - med has been given, then the router will prefer the route with the highest MED
    • D、The router will prefer the route with the lower MED

    正确答案:B

  • 第5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 it
    • D、The distribution of VPN routing information is controlled through the use of VPN RTs
    • E、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.

    正确答案:A,C,D

  • 第6题：

    Router R-1 is configured for BGP routing as shown below： router bgp 65300network 27.0.0.0neighbor 192.23.1.1 remote-as 65300 From the perspective of router R-1， what kind of router is the router with IP address 192.23.1.1？（）

    • A、A peer router running IBGP
    • B、A peer router running EBGP
    • C、A community member running IBGP
    • D、A peer group member running IBGP
    • E、A peer group member running EBGP

    正确答案:A

  • 第7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.

    正确答案:B

  • 第8题：

    多选题
    HSRP has been configured between two Company devices.  Which of the following describe  reasons for deploying HSRP？ （）
    A

    HSRP provides redundancy and fault tolerance

    B

    HSRP allows one router to automatically assume the function of the second router if the second  router fails

    C

    HSRP allows one router to automatically assume the function of the second router if the second  router starts

    D

    HSRP provides redundancy and load balancing


    正确答案： C,B
    解析： 暂无解析

  • 第9题：

    单选题
    You are the administrator of a company with BGP connections to multiple ISP’s. How could youconfigure BGP to make it favor one particular ISP for outbound traffic？（）
    A

    Configure weight

    B

    Enable route reflector

    C

    Create a distribute list

    D

    Enable the Longer Autonomous System path option

    E

    All of the above


    正确答案： E
    解析： 暂无解析

  • 第10题：

    单选题
    Which router translates the Type 7 LSAs into Type 5 LSAs, according to RFC 1587 (OSPF NSSAOption) in an OSPF NSSA with more than one ABR?（）
    A

    The router receiving the route translates the Type 7 LSA into a Type 5 LSA.

    B

    The ABR with the lowest router ID translates all Type 7 LSAs into Type 5 LSAs.

    C

    The ABR with the highest router ID translates all Type 7 LSAs into Type 5 LSAs.

    D

    All ABRs translate the Type 7 LSAs into Type 5 LSAs depending on which one has the lowest cost to the route.


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    Router R-1 is configured for BGP routing as shown below： router bgp 65300network 27.0.0.0neighbor 192.23.1.1 remote-as 65300 From the perspective of router R-1， what kind of router is the router with IP address 192.23.1.1？（）
    A

    A peer router running IBGP

    B

    A peer router running EBGP

    C

    A community member running IBGP

    D

    A peer group member running IBGP

    E

    A peer group member running EBGP


    正确答案： D
    解析： 暂无解析

  • 第12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.


    正确答案： A
    解析： 暂无解析

  • 第13题：

    Router R1 learns two routes with BGP for prefix 200.1.0.0/16. Comparing the two routes, route 1 has a shorter AS_Path Length, smaller MED, the same Weight, and smaller Local PreferencE. Which of the following is true about Router R1's choice of best path for this prefix?（）

    • A、Route 1 is the best route.
    • B、Route 2 is the best route.
    • C、The routes tie as best, but one will be picked to be placed in the routing table based on tiebreakers .
    • D、Neither route is considered best.

    正确答案:B

  • 第14题：

    You issue the command show process memory ∣ include BGP and notice that BGP is consuming alarge percentage of the router’s memory. Which of the following steps would result in lowering theamount of memory being consumed by BGP？（Choose all that apply.）（）

    • A、Filter unneeded BGP routes
    • B、Run BGP on a different platform that already has more memory
    • C、Upgrade the router memory
    • D、Increase the BGP update timer
    • E、Compress the BGP table
    • F、Use a default route instead of maintaining a full BGP table

    正确答案:A,C,F

  • 第15题：

    You are the administrator of a company with BGP connections to multiple ISP’s. How could youconfigure BGP to make it favor one particular ISP for outbound traffic？（）

    • A、Configure weight
    • B、Enable route reflector
    • C、Create a distribute list
    • D、Enable the Longer Autonomous System path option
    • E、All of the above

    正确答案:A

  • 第16题：

    Which two options does Cisco PfR use to control the entrance link selection with inbound  optimization？（）

    • A、Prepend extra AS hops to the BGP prefix.
    • B、Advertise more specific BGP prefixes（longer mask）.
    • C、Add（prepend）one or more communities to the prefix that is advertised by BGP.
    • D、Have BGP dampen the prefix.

    正确答案:A,C

  • 第17题：

    Area Border Router （ABR） is a router located on the border of one or more OSPF areas that connect those areas to the backbone network. An ABR will inject a default route into which two types of areas？（）

    • A、Area 0
    • B、NSSA
    • C、Totally stubby
    • D、Stub

    正确答案:C,D

  • 第18题：

    The following line of output was gathered on Enterprise Router Ent1 using the command show ip route. Which of the following answers is most likely to be true, based on thi s output？（） B 128.107.0.0 [20/10] via 11.11.11.11, 00:02:18

    • A、This router has set the Weight of this route to 10.
    • B、This router's BGP table lists this route as an iBGP route.
    • C、This router's MED has been set to 10.
    • D、This router's BGP table lists an AS_Path length of 10 for this route.

    正确答案:C

  • 第19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.


    正确答案： D
    解析： 暂无解析

  • 第20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 added

    B

    floating static route needs to be added

    C

    bgp backdoor command

    D

    ospf backdoor command


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    A router has two paths to reach another network in a different autonomous system. Neither route was generated by the local router and both routes have the same default weight an d local preference values. Which statement is true about how BGP would select the best path?（）
    A

    To influence one route to be preferred, its default local preference value will be changed via the use of the command bgp default local - preference 50

    B

    Th e router will prefer the shortest autonomous system path

    C

    If the command bgp always - compare - med has been given, then the router will prefer the route with the highest MED

    D

    The router will prefer the route with the lower MED


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    The fol lowing line of output was extracted from the output of the show ip bgp command on Router R1. Which of the following can be determined from this output?（） Network Next Hop Metric LocPrf Weight Path * 130.1.1.0/28 1.1.1.1 0 1 2 3 4 i
    A

    The route is learne d from an eBGP peer

    B

    The route has no more than three ASNs in the AS_PatH

    C

    The route is the best route for this prefix

    D

    None of these facts can be positively determined by this output


    正确答案： A
    解析： 暂无解析

  • 第23题：

    多选题
    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


    正确答案： D,C
    解析： 暂无解析

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