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 the bgp Next Hop IP address.C The local router prefers the route from the peer with the lo

题目
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 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.

相似考题

1.You have been asked to establish reachability between Router 1‘s and Router 2‘s loopback addresses as shown in the exhibit. Which two steps will accomplish this task?()A. Create a static route on Router 1 to 172.17.28.1 with a next hop of 10.10.10.2.B. Create a static route on Router 1 to 172.17.28.1 with a next hop of 10.10.10.1.C. Create a static route on Router 2 to 172.17.25.1 with a next hop of 10.10.10.1.D. Create a static route on Router 1 to 172.17.25.1 with a next hop of 10.10.10.2.

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.Which BGP command provides the router ID, local preference, next hop, and BGP path in its output?()A. show ip route bgpB. show ip bgpC. show ip bgp neighborsD. show ip bgp summary

4.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, 00:02:18A. 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.

参考答案和解析
正确答案： B
解析： 暂无解析
更多“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 low”相关问题

  • 第1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


    参考答案：B

  • 第2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3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4题：

    Router R1 has been configured with the redistribute ospf 1 route - map fred command under router eigrp 1. The route map named fred needs to be configured to match routes to d etermine which routes are redistributed into EIGRP. Which of the following answers lists an item that cannot be matched by route map fred?（）

    • A、Subnet number
    • B、Next - hop router IP address of the route
    • C、Whether the route is an E1 or E2 route
    • D、The ro ute's tag
    • E、The number of router hops between the router and the subnet

    正确答案:E

  • 第5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

  • 第6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 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7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： B
    解析： 暂无解析

  • 第8题：

    单选题
    Which BGP command provides the router ID, local preference, next hop, and BGP path in its output?（）
    A

    show ip route bgp

    B

    show ip bgp

    C

    show ip bgp neighbors

    D

    show ip bgp summary


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    You have been asked to configure your MX240 with a default route toward your upstream ISP atIP address 192.168.100.1. Which command successfully completes this task?（）
    A

    user@router# set routing-options static route 0.0.0.0/0 next-hop 192.168.100.1

    B

    user@router# set routing-options default route 0.0.0.0/0 next-hop 192.168.100.1

    C

    user@router# set forwarding-options static route 0.0.0.0/0 next-hop 192.168.100.1

    D

    user@router# set protocols default route 0.0.0.0/0 next-hop 192.168.100.1


    正确答案： C
    解析： 暂无解析

  • 第10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： C
    解析： 暂无解析

  • 第11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12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： C
    解析： 暂无解析

  • 第13题：

    A router receives information about network 192.168.10.0／24 from multiple sources. What will the router consider the most reliable information about the path to that network()。

    A.a directly connected interface with an address of 192.168.10.254/24

    B.a static route to network 192.168.10.0/24

    C.a RIP update for network 192.168.10.0/24

    D.an OSPF update for network 192.168.0.0/16

    E.a default route with a next hop address of 192.168.10.1

    F.a static route to network 192.168.10.0/24 with a local serial interface configured as the next hop


    参考答案：A

  • 第14题：

    Which BGP command provides the router ID, local preference, next hop, and BGP path in its output?（）

    • A、show ip route bgp
    • B、show ip bgp
    • C、show ip bgp neighbors
    • D、show ip bgp summary

    正确答案:B

  • 第15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16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17题：

    You have been asked to configure your MX240 with a default route toward your upstream ISP at IP address 192.168.100.1. Which command successfully completes this task?（）

    • A、user@router# set routing-options static route 0.0.0.0/0 next-hop 192.168.100.1
    • B、user@router# set routing-options default route 0.0.0.0/0 next-hop 192.168.100.1
    • C、user@router# set forwarding-options static route 0.0.0.0/0 next-hop 192.168.100.1
    • D、user@router# set protocols default route 0.0.0.0/0 next-hop 192.168.100.1

    正确答案:A

  • 第18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19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 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20题：

    单选题
    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
    解析： 暂无解析

  • 第21题：

    单选题
    A problem was reported that the 10.10.10.0/24 prefix was not injected into the local BGP table on a PassGuide router named PG1.The following information is available from this router：PG1 Configuration：router bgp 65001network 10.0.0.0neighbor 172.16.1.1 remote-as65002no auto-summaryRouting table information：show ip route|include 10O10.10.10.0/24[110/11]via192.168.1.1，2d00h，Ethernet0/0Why is this prefix not in the local BGP table of thePG1（）
    A

    The 172.16.1.1 neighbor is down.

    B

    The prefix 10.10.10.0/24is not a’connected’route.

    C

    This route is not a BGP learned route.

    D

    The network command is wrong.

    E

    None of the other alternatives apply


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    A router receives information about network 192.168.10.0/24 from multiple sources. What will the router consider the most reliable information about the path to that network（）。
    A

    a directly connected interface with an address of 192.168.10.254/24

    B

    a static route to network 192.168.10.0/24

    C

    a RIP update for network 192.168.10.0/24

    D

    an OSPF update for network 192.168.0.0/16

    E

    a default route with a next hop address of 192.168.10.1

    F

    a static route to network 192.168.10.0/24 with a local serial interface configured as the next hop


    正确答案： F
    解析： 暂无解析

  • 第23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： B
    解析： 暂无解析

  • 第24题：

    单选题
    You have been asked to configure your MX240 with a default route toward your upstream ISP at IP address 192.168.100.1. Which command successfully completes this task?（）
    A

    user@router# set routing-options static route 0.0.0.0/0 next-hop 192.168.100.1

    B

    user@router# set routing-options default route 0.0.0.0/0 next-hop 192.168.100.1

    C

    user@router# set forwarding-options static route 0.0.0.0/0 next-hop 192.168.100.1

    D

    user@router# set protocols default route 0.0.0.0/0 next-hop 192.168.100.1


    正确答案： D
    解析： 暂无解析

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