How does route poisoning work with holddown timers to prevent routing loops?()A. Information learned from one source is not distributed back to that source.B. Routing updates from the poisoned source are ignored until a holddown timer expires.C. Failed ro

题目
How does route poisoning work with holddown timers to prevent routing loops?()

A. Information learned from one source is not distributed back to that source.

B. Routing updates from the poisoned source are ignored until a holddown timer expires.

C. Failed routes are advertised with infinite metrics.

D. New routing updates are ignored until the network has converged.

E. A route is marked as unavailable when its time-to-live is exceeded.

相似考题

1.Which mechanism does External BGP use to prevent the formation of routing loops?()A. AS pathB. Split horizonC. Poison reverseD. Unicast RPF check

2.When you display the routing table by entering the show route command, what does the* indicate?()A.The route is a direct route.B.The route was selected as active.C.The route is a default route.D.The route was learned using a dynamic routing protocol.

3.Refer to the exhibit. How would you confirm on R1 that load balancing is actually occurring on the default － netw ork (0.0.0.0)?()A. Use ping and the show ip route command to confirm the timers for each default network resets to 0.B. Load balancing does not occur over default networks; the second route will only be used for failover.C. Use an extended ping al ong with repeated show ip route commands to confirm the gateway of last resort address toggles back and forth.D. Use the traceroute command to an address that is not explicitly in the routing table.

4.Which routing table stores IPv4 unicast routes and is used by multicast routing protocols to prevent loops?()A. inet.0B. inet.1C. inet.2D. inet.3

更多“How does route poisoning work with holddown timers to prevent routing loops?() ”相关问题

  • 第1题：

    Which BGP attribute is used by BGP to prevent routing loops?()

    A. AS - path

    B. next - hop

    C. MED

    D. weight

    E. local preference

    F. origin


    参考答案：A

  • 第2题：

    Based on the network shown in the graphic which option contains the potential networking problem and protocol or setting that can to prevent the problem?()

    A.Routing loops, hold down timers

    B.Switching loops, split horizon

    C.Routing loops, split horizon

    D.Switching loops, VTP

    E.Routing loops, STP

    F.Switching loops, STP


    参考答案：F

  • 第3题：

    RIP version 2 is being used as the routing protocol within the Testking network.What does RIP version 2 use to prevent routing loops?（）

    • A、CIDR
    • B、Split horizon
    • C、Authentication
    • D、Classless masking
    • E、Hold-down timers
    • F、Multicast routing updates
    • G、Path Vectoring

    正确答案:B,E

  • 第4题：

    How does route poisoning work with holddown timers to prevent routing loops?（）

    • A、Information learned from one source is not distributed back to that source.
    • B、Routing updates from the poisoned source are ignored until a holddown timer expires.
    • C、Failed routes are advertised with infinite metrics.
    • D、New routing updates are ignored until the network has converged.
    • E、A route is marked as unavailable when its time-to-live is exceeded.

    正确答案:C

  • 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 mechanism does External BGP use to prevent the formation of routing loops?（）

    • A、AS path
    • B、Split horizon
    • C、Poison reverse
    • D、Unicast RPF check

    正确答案:A

  • 第7题：

    A router has EIGRP configured as the only routing protocol. How does EIGRP respond if there is no feasible successor route to a destination network and the successor route fails?（）

    • A、It immediately sends its entire routing table to its neighbors.
    • B、EIGRP sends a Hello packet to the DR to inform it of the route failure.
    • C、It automatically forwards traffic to a fallback default route until a successor route is found.
    • D、It sends queries out to neighbors until a new successor route is found.
    • E、It places the route in holddown until LSA updates inform it of a new route to the network.

    正确答案:D

  • 第8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9题：

    多选题
    RIP version 2 is being used as the routing protocol within the Testking network.What does RIP version 2 use to prevent routing loops?（）
    A

    CIDR

    B

    Split horizon

    C

    Authentication

    D

    Classless masking

    E

    Hold-down timers

    F

    Multicast routing updates

    G

    Path Vectoring


    正确答案： F,C
    解析： 暂无解析

  • 第10题：

    单选题
    Which mechanism does External BGP use to prevent the formation of routing loops?（）
    A

    AS path

    B

    Split horizon

    C

    Poison reverse

    D

    Unicast RPF check


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    How does route poisoning work with holddown timers to prevent routing loops?（）
    A

    Information learned from one source is not distributed back to that source.

    B

    Routing updates from the poisoned source are ignored until a holddown timer expires.

    C

    Failed routes are advertised with infinite metrics.

    D

    New routing updates are ignored until the network has converged.

    E

    A route is marked as unavailable when its time-to-live is exceeded.


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    What is the purpose of the spanning-tree algorithm in a switched LAN?（）
    A

    To provide a monitoring mechanism for networks in switched environments.

    B

    To manage VLANs across multiple switches.

    C

    To prevent switching loops in networks with redundant switched paths.

    D

    To segment a network into multiple collision domains.

    E

    To prevent routing loops in networks.


    正确答案： E
    解析： 暂无解析

  • 第13题：

    RIP version 2 is being used as the routing protocol within the Testking network.What does RIP version 2 use to prevent routing loops?()

    A. CIDR

    B. Split horizon

    C. Authentication

    D. Classless masking

    E. Hold-down timers

    F. Multicast routing updates

    G. Path Vectoring


    参考答案：B, E

  • 第14题：

    Which of the following technologies can be used in distance vector routing protocols to prevent routing loops?（）

    • A、Spanning Tree Protocol
    • B、Shortest path first tree
    • C、Link-state advertisements (LSA)
    • D、Hold-down timers
    • E、Split horizon
    • F、VRP

    正确答案:D,E

  • 第15题：

    Which BGP attribute is used by BGP to prevent routing loops?（）

    • A、AS - path
    • B、next - hop
    • C、MED
    • D、weight
    • E、local preference
    • F、origin

    正确答案:A

  • 第16题：

    What is the purpose of the spanning-tree algorithm in a switched LAN?（）

    • A、To provide a monitoring mechanism for networks in switched environments.
    • B、To manage VLANs across multiple switches.
    • C、To prevent switching loops in networks with redundant switched paths.
    • D、To segment a network into multiple collision domains.
    • E、To prevent routing loops in networks.

    正确答案:C

  • 第17题：

    When you display the routing table by entering the show route command, what does the* indicate?（）

    • A、The route is a direct route.
    • B、The route was selected as active.
    • C、The route is a default route.
    • D、The route was learned using a dynamic routing protocol.

    正确答案:B

  • 第18题：

    In a switched LAN network, what is the Spanning-Tree algorithm used for?（）

    • A、It is used to provide a mechanism for routing updates in switched environments.
    • B、It is used to prevent routing loops in networks with redundant routes.
    • C、It is used to prevent switching loops in networks with redundant switched routes.
    • D、It is used to manage, the addition, deletion, and naming of VLANs across multiple switches.
    • E、It is used to segment a network into multiple collision domains.
    • F、None of the above.
    • G、All of the above are functions of STP.

    正确答案:C

  • 第19题：

    单选题
    When you display the routing table by entering the show route command, what does the* indicate?（）
    A

    The route is a direct route.

    B

    The route was selected as active.

    C

    The route is a default route.

    D

    The route was learned using a dynamic routing protocol.


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    Which BGP attribute is used by BGP to prevent routing loops?（）
    A

    AS - path

    B

    next - hop

    C

    MED

    D

    weight

    E

    local preference

    F

    origin


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    A router has EIGRP configured as the only routing protocol. How does EIGRP respond if there is no feasible successor route to a destination network and the successor route fails?（）
    A

    It immediately sends its entire routing table to its neighbors.

    B

    EIGRP sends a Hello packet to the DR to inform it of the route failure.

    C

    It automatically forwards traffic to a fallback default route until a successor route is found.

    D

    It sends queries out to neighbors until a new successor route is found.

    E

    It places the route in holddown until LSA updates inform it of a new route to the network.


    正确答案： C
    解析： 暂无解析

  • 第22题：

    多选题
    Which of the following technologies can be used in distance vector routing protocols to prevent routing loops?（）
    A

    Spanning Tree Protocol

    B

    Shortest path first tree

    C

    Link-state advertisements (LSA)

    D

    Hold-down timers

    E

    Split horizon

    F

    VRP


    正确答案： D,A
    解析： 暂无解析

  • 第23题：

    单选题
    Which routing table stores IPv4 unicast routes and is used by multicast routing protocols to prevent loops?（）
    A

    inet.0

    B

    inet.1

    C

    inet.2

    D

    inet.3


    正确答案： B
    解析： 暂无解析

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