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单选题Which graceful restart parameter is negotiated during BGP session establishment?（）A Grace-timeB Restart-timeC Stale-routes-timeD Restart-update-time

题目
单选题
Which graceful restart parameter is negotiated during BGP session establishment?（）
A

Grace-time

B

Restart-time

C

Stale-routes-time

D

Restart-update-time

相似考题

1.Which action does a BGP speaker take when it detects that the reset state bit is set in an openmessage?()A. It tears down the BGP session.B. It sends a restart message to the peer.C. It marks all routes from that peer as stale.D. It sends a BGP refresh message to the peer

2.Which setting in JUNOS software forces a bgp speaker to wait for a bgp neighbor to initiate a bgp session?()A. waitB. holdC. passiveD. authenticate

3.Refer to the exhibit. Which of the following statements is true? ()A. BGP NSF awareness is enabledB. SSO for BGP NSF capability is enabledC. BGP graceful restart awareness is enabledD. 10.11.1.187 is configured as an NSF-capable BGP neighbor

4.Which graceful restart parameter is negotiated during BGP session establishment?()A. Grace-timeB. Restart-timeC. Stale-routes-timeD. Restart-update-time

更多“单选题Which graceful restart parameter is negotiated during BGP session establishment?（）A Grace-timeB Restart-timeC Stale-routes-timeD Restart-update-time”相关问题

  • 第1题：

    Based on the show ip bgp summary output, which two statements are true?()

    A. The BGP session to the 10.3.3.3 neighbor is established, but the router has not received any BGP routing updates from the 10.3.3.3 neighbor.

    B. The router is attempting to establish a BGP peering session with the 10.2.2.2 neighbor.

    C. The router is attempting to establish a BGP peering session with the 10.1.1.1 neighbor.

    D. The BGP session to the 10.3.3.3 neighbor is established.

    E. The BGP session to the 10.2.2.2 neighbor is established.

    F. The BGP session to the 10.1.1.1 neighbor is established.


    参考答案：B, F

  • 第2题：

    In which two ways does the BGP graceful restart capability preserve prefix information during a restart？（）

    • A、The peer router sends an end-of RIB message to the restarting router
    • B、The peer router immediately removes the BGP routes that it learned from the restarting router from its BGP routing table
    • C、The restarting router does not remove any stale prefixes after the timer for stale entries expires
    • D、The router establishes BGP sessions with other routers and relearns the BGP routes from other routers that are also capable of graceful restart. The restarting router waits to receive updates from the neighboring routers. When the neighboring routers send end-of-RIB messages to indicate that they are done sending updates， the restarting router starts sending its own updates
    • E、The restarting router removes any stale prefixes after the timer for stale entries expires

    正确答案:D,E

  • 第3题：

    What are the two benefits of graceful restart？（）

    • A、Graceful restart allows session information recovery without disruption to the network.
    • B、A node can perform a graceful restart to help a neighbor recover its state. The label bindings are kepton state information， which helps the failed node recover faster and does notaffect the current for wardtraffic.
    • C、Graceful restart allows a node to recover state from its neighbor when there is no RP or before thedevice undergoes SSO.
    • D、Graceful restart does not allow session information recovery.
    • E、During a graceful restart， the router removes any stale prefixes after a timer for stale entries expires

    正确答案:A,B

  • 第4题：

    Which three pre-conditions must be met before an OSPF router can perform graceful restart？（）

    • A、Router must be ABR
    • B、Router must contain one sham link.
    • C、The network topology must be stable.
    • D、Router must be able to forward packets.
    • E、Neighbors must support graceful restart.

    正确答案:C,D,E

  • 第5题：

    The OSPF RFC 3623 Graceful Restart feature allows you to configure IETF NSF in ultivendor networks. When using OSPF Graceful Restart，which mechanism is used tocontinue forwarding packets during a switchover？（）

    • A、Reverse Path Forwarding
    • B、Hardware-based forwarding
    • C、UDP forwarding
    • D、Layer 2 Forwarding

    正确答案:B

  • 第6题：

    BGP协议为了支持GR，做了如下扩展（）。

    • A、在BGP的OPEN消息中，增加了一种表示GR的能力，称为Graceful Restart Capability。这种能力被BGP用来向邻居表示其支持Graceful restart的能力
    • B、在Keepalive报文中增加TLV211表明路由器发生了重启
    • C、定义了两个重要的定时器：Restart timer和Wait-For-EOR timer
    • D、在Update报文中，新增加一个EOR（End-of-RIB）标志，用于表明路由信息向邻居更新完毕

    正确答案:A,C,D

  • 第7题：

    Which pre-conditions must be met before an OSPF router can perform graceful restart？（）

    • A、Router must be ABR
    • B、Router must contain one sham link.
    • C、The network topology must be stable.
    • D、Router must be able to forward packets.
    • E、Neighbors must support graceful restart.

    正确答案:C,D,E

  • 第8题：

    Which three pre-conditions must be met before an OSPF router can perform graceful restart? （）

    • A、Router must be an ABR.
    • B、Router must contain one sham link.
    • C、The network topology must be stable.
    • D、Router must be able to forward packets.
    • E、Neighbors must support graceful restart.

    正确答案:C,D,E

  • 第9题：

    单选题
    In BGP graceful restart, how does a peer router indicate the end of a route exchange?（）
    A

    an open message with the E bit set

    B

    an update message with the E bit set

    C

    an open message with an end-of-RIB marker

    D

    an update message with an end-of-RIB marker


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    Which action does a BGP speaker take when it detects that the reset state bit is set in an openmessage?（）
    A

    It tears down the BGP session.

    B

    It sends a restart message to the peer.

    C

    It marks all routes from that peer as stale.

    D

    It sends a BGP refresh message to the peer


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    Which Cisco IOS command is used to troubleshoot a problem in which a BGP session stays in the active state?（）
    A

    debug ip bgp updates

    B

    debug ip tcp events

    C

    debug ip bgp transactions

    D

    debug ip tcp transactions


    正确答案： C
    解析： 暂无解析

  • 第12题：

    多选题
    In which two ways does the BGP graceful capability preserve prefix information during a restart？（）
    A

    The peer router immediately removes the BGP routers that it learned from the restarting router from itsBGP routing tables.

    B

    The router establishes BGP sessions with other routers and relearns the BGP routes from others that are also capable of graceful restart. The restarting router waits to receive updates from the neighboringrouters. When the neighboring routers send end-of-RIB messages to indicate that they are donesending updates，the restarting router starts sending its own updates.

    C

    The peer router sends an end-of-RIB message to the restarting router.

    D

    The restarting router removes any stale prefixes after the timer for stale entries expires.

    E

    The restarting router does not remove any stale prefixes after the timer for stale entries expires.


    正确答案： B,D
    解析： 暂无解析

  • 第13题：

    In order to allow the establishment of a Telnet session with a router, which set of commands must be configured()。

    A.A

    B.B

    C.C

    D.D

    E.E

    F.F


    参考答案：F

  • 第14题：

    In which of the following BGP-related events is an End-of-RIB （EOR） message sent？（）

    • A、Following a link flap in the BGP speaker’s AS
    • B、During initial convergence.
    • C、Following a Route Processor Switchover.
    • D、Just before sending a CEASE message to tear down the session.
    • E、During capability negotiation

    正确答案:B,C

  • 第15题：

    Which two features must be configured to perform AToM NSF？（）

    • A、FRR
    • B、SSO
    • C、distribute CEF
    • D、switch virtual path
    • E、graceful restart

    正确答案:B,E

  • 第16题：

    Which graceful restart parameter is negotiated during BGP session establishment?（）

    • A、Grace-time
    • B、Restart-time
    • C、Stale-routes-time
    • D、Restart-update-time

    正确答案:B

  • 第17题：

    In which two ways does the BGP graceful capability preserve prefix information during a restart？（）

    • A、The peer router immediately removes the BGP routers that it learned from the restarting router from itsBGP routing tables.
    • B、The router establishes BGP sessions with other routers and relearns the BGP routes from others that are also capable of graceful restart. The restarting router waits to receive updates from the neighboringrouters. When the neighboring routers send end-of-RIB messages to indicate that they are donesending updates，the restarting router starts sending its own updates.
    • C、The peer router sends an end-of-RIB message to the restarting router.
    • D、The restarting router removes any stale prefixes after the timer for stale entries expires.
    • E、The restarting router does not remove any stale prefixes after the timer for stale entries expires.

    正确答案:B,D

  • 第18题：

    Which setting in JUNOS software forces a bgp speaker to wait for a bgp neighbor to initiate a bgp session?（）

    • A、wait
    • B、hold
    • C、passive
    • D、authenticate

    正确答案:C

  • 第19题：

    Which action does a BGP speaker take when it detects that the reset state bit is set in an openmessage?（）

    • A、It tears down the BGP session.
    • B、It sends a restart message to the peer.
    • C、It marks all routes from that peer as stale.
    • D、It sends a BGP refresh message to the peer

    正确答案:C

  • 第20题：

    单选题
    Which setting in JUNOS software forces a bgp speaker to wait for a bgp neighbor to initiate a bgp session?（）
    A

    wait

    B

    hold

    C

    passive

    D

    authenticate


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    The OSPF RFC 3623 Graceful Restart feature allows you to configure IETF NSF in ultivendor networks. When using OSPF Graceful Restart， which mechanism is used tocontinue forwarding packets during a switchover？（）
    A

    Reverse Path Forwarding

    B

    Hardware-based forwarding

    C

    UDP forwarding

    D

    Layer 2 Forwarding


    正确答案： B
    解析： 暂无解析

  • 第22题：

    多选题
    BGP协议为了支持GR，做了如下扩展（）。
    A

    在BGP的OPEN消息中，增加了一种表示GR的能力，称为Graceful Restart Capability。这种能力被BGP用来向邻居表示其支持Graceful restart的能力

    B

    在Keepalive报文中增加TLV211表明路由器发生了重启

    C

    定义了两个重要的定时器：Restart timer和Wait-For-EOR timer

    D

    在Update报文中，新增加一个EOR（End-of-RIB）标志，用于表明路由信息向邻居更新完毕


    正确答案： C,B
    解析： 暂无解析

  • 第23题：

    多选题
    What are the two benefits of graceful restart？（）
    A

    Graceful restart allows session information recovery without disruption to the network.

    B

    A node can perform a graceful restart to help a neighbor recover its state. The label bindings are kepton state information， which helps the failed node recover faster and does notaffect the current for wardtraffic.

    C

    Graceful restart allows a node to recover state from its neighbor when there is no RP or before thedevice undergoes SSO.

    D

    Graceful restart does not allow session information recovery.

    E

    During a graceful restart， the router removes any stale prefixes after a timer for stale entries expires


    正确答案： C,A
    解析： 暂无解析

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