VRRP （Virtual Router Redundancy Protocol) 虚拟路由冗余协议 名词解释

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• You need to decide on the best router redundancy protocol to use in the Company network.  Which  two statements are true about HSRP， VRRP， and GLBP？（）

  A .  GLBP and VRRP allow for MD5 authentication， whereas HSRP does not. B .  HSRP allows for multiple upstream active links being simultaneously used， whereas GLBP  does not. C .  GLBP allows for router load balancing of traffic from a network segment without the different  host IP configurations required to achieve the same results with HSRP. D .  Unlike HSRP and VRRP， GLBP allows automatic selection and simultaneous use of multiple  available gateways. E .  GLBP allows for router load balancing of traffic from a network segment by utilizing the creation  of multiple standby groups.

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• What is the importance of using Virtual Output Queues on ingress Line Cards in a high-end router？（）

  A . Prevents head-of-line blocking B . Uses less memory C . Increases forwarding performance D . Simplifies configuratio

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• VRRP 协议使用的组播地址为（）

  A .  224.0.0.6 B .  224.0.0.8 C .  224.0.0.9 D .  224.0.0.10 E .  224.0.0.18

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• Refer to the exhibit. Which Virtual Router Redundancy Protocol （VRRP） statement is true about the roles of the master virtual router and the backup virtual router？（）https://assets.asklib.com/images/image2/201807261018433888.jpg

  A . Router A is the master virtual router， and Router B is the backup virtual router. When Router A fails， Router B will become the master virtual router. When Router A recovers， Router B will maintain the role of master virtual route B . Router A is the master virtual router， and Router B is the backup virtual router. When Router A fails， Router B will become the master virtual router. When Router A recovers， it will regain the master virtual router role C . Router B is the master virtual router， and Router A is the backup virtual router. When Router B fails， Router A will become the master virtual router. When Router B recovers， Router A will maintain the role of master virtual router. D . Router B is the master virtual router， and Router A is the backup virtual router. When Router B fails， Router A will become the master virtual router. When Router B recovers， it will regain the master virtual router role

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• Refer to the exhibit. Which Virtual Router Redundancy Protocol （VRRP） statement is true about  the roles of the master virtual router and the backup virtual router？（） https://assets.asklib.com/images/image2/2018073015211171683.jpg

  A .  Router A is the master virtual router， and Router B is the backup virtual router. When Router A  fails， Router B will become the master virtual router. When Router A recovers， Router B will  maintain the role of master virtual router. B .  Router B is the master virtual router， and Router A is the backup virtual router. When Router B  fails， Router A will become the master virtual router. When Router B recovers， it will regain the  master virtual router role. C .  Router A is the master virtual router， and Router B is the backup virtual router. When Router A  fails， Router B will become the master virtual router. When Router A recovers， it will regain the  master virtual router role. D .  Router B is the master virtual router， and Router A is the backup virtual router. When Router B  fails， Router A will become the master virtual router. When Router B recovers， Router A will  maintain the role of master virtual router.

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• VRRP协议用户提供冗余链路保护，传统VRRP倒换时间在秒级，S8505如何实现VRRP毫秒级别的倒换？

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• n a virtual port channel （vPC） configuration， VRRP exhibits which characteristic？ （）

  A .  VRRP does not work with vPC due to industry standard requirements B .  VRRP works with vPC in traditional active/standby modes C .  VRRP works with vPC in an active/active mode D .  VRRP work with vPC as long as vPC peer-gateway is configured to address non-standard replies to the physical MAC addre

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• Refer to the exhibit. Which Virtual Router Redundancy Protocol （VRRP） statement is true about the  roles of the master virtual router and the backup virtual router？（）https://assets.asklib.com/images/image2/20180724105948386.jpg

  A .  Router A is the master virtual router， and Router B is the backup virtual router. When Router A fails，  Router B will become the master virtual router. When Router A recovers， Router B will maintain the role of  master virtual router. B .  Router A is the master virtual router， and Router B is the backup virtual router. When Router A fails，  Router B will become the master virtual router. When Router A recovers， it will regain the master virtual  router role. C .  Router B is the master virtual router， and Router A is the backup virtual router. When Router B fails，  Router A will become the master virtual router. When Router B recovers， Router A will maintain the role of  master virtual router. D .  Router B is the master virtual router， and Router A is the backup virtual router. When Router B fails，  Router A will become the master virtual router. When Router B recovers， it will regain the master virtual  router role.

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• What can be done to secure the virtual terminal interfaces on a router？（）

  A . Administratively shut down the interface. B . Physically secure the interface. C . Create an access list and apply it to the virtual terminal interfaces with the access-group command. D . Configure a virtual terminal password and login process. E . Enter an access list and apply it to the virtual terminal interfaces using the access-class command.

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• VRRP的作用是什么？VRRP的三种状态是什么？

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• What can be done to secure the virtual terminal interfaces on a router?（）

  A . Administratively shut down the interface. B . Physically secure the interface. C . Create an access list and apply it to the virtual terminal interfaces with the access-group command. D . Configure a virtual terminal password and login process. E . Enter an access list and apply it to the virtual terminal interfaces using the access-class command.

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• You wish to increase the security of all of the routers within your network. What can be done to secure the virtual terminal interfaces on a router?（）

  A . Administratively shut down the interface. B . Physically secure the interface. C . Create an access list and apply it to the virtual terminal interfaces with the access-group command. D . Configure a virtual terminal password and login process. E . Enter an access list and apply it to the virtual terminal interfaces using the access-class command.

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• 当传递VRRp心跳报文的中间链路故障时关于VRRP和VRRp的状态切换描述正确的是（）

  A . VRRP两端同时变为master状态，VRRP心跳报文通过TCP传输 B . VRRP两端同时变为master状态，VRRp心跳报文通过UDP传输 C . VRRP两端同时变为slave状态，VRRP心跳报文通过TCP传输 D . VRRP两端同时变为slave状态，VRRP心跳报文通过UDP传输

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• VRRP协议的优点之一是当VRRP主路由器感知到故障后立即切换至VRRP备用路由器，保证业务短时间内恢复。

  A . 正确 B . 错误

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• 在Quidway系列交换机启动VRRP协议后，若VRRP虚IP地址与交换机此虚接口真实IP地址相同，则其优先级（）

  A . 可以进行设定 B . 固定为0 C . 固定为255 D . 若不做设定则默认为100

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• 在VRRP协议中，备份机（backup）不会定期发送VRRP广播报文

  A . 正确 B . 错误

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• Which one of the statements below correctly describes the Virtual Router Redundancy Protocol  （VRRP），  which is being used in the Company network to provide redundancy？（）

  A .  A VRRP group has one active and one or more standby virtual routers. B .  A VRRP group has one master and one or more backup virtual routers. C .  A VRRP group has one master and one redundant virtual router. D .  None of the other alternatives apply

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• Which can be done to secure the virtual terminal interfaces on a router?（）

  A . Administratively shut down the interfaces. B . Physically secure the interfaces. C . Configure a virtual terminal password and login process. D . Enter an access list and apply it to the terminal interfaces using the access-class command. E . Create an access list and apply it to the terminal interfaces using the access-group command.

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• Which can be done to secure the virtual terminal interfaces on a router？（）

  A . Administratively shut down the interfaces. B . Physically secure the interfaces. C . Configure a virtual terminal password and login process. D . Enter an access list and apply it to the terminal interfaces using the access-class command. E . Create an access list and apply it to the terminal interfaces using the access-group command

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• Which CLI command displays the VRFs that are operational within each virtual router？（）

  <img src='https://img2.soutiyun.com/ask/uploadfile/2019-02-04/7b4284f055f0b1993f5b637145ea4b9b.jpg' /> A．A B．B C．C D．D

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• Observe the diagram. RTC is the hub router and RTA and RTB are the spokes. There are no virtual circuits between the spoke locations. What is needed to successfully route traffic to the 11.11.11.0/24 network from RTA？ （）

  <img src='https://img2.soutiyun.com/ask/uploadfile/2019-03-27/3b52a384bbee4e7f118247f79e304256.jpg' /> A. The neighbor 10.10.10.1 next - hop - self com mand on RTA B. Nothing is required. This is the default behavior on this topology C. The neighbor 10.10.10.1 next - hop - self command on RTB D. The neighbor 10.10.10.1 next - hop - self command on RTC

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• VRRP中只定义了一种报文£­VRRP报文，这是一种（)报文。

  A．单播 B．广播 C．组播 D．hello

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• Refer to the exhibit. Which Virtual Router Redundancy Protocol （）

  A．RouterAisthemastervirtualrouter，andRouterBisthebackupvirtualrouter．WhenRouterAfails，RouterBwillbecomethemastervirtualrouter．WhenRouterArecovers，RouterBwillmaintaintheroleofmastervirtualrouter． B．RouterAisthemastervirtualrouter，andRouterBisthebackupvirtualrouter．WhenRouterAfails，RouterBwillbecomethemastervirtualrouter．WhenRouterArecovers，itwillregainthemastervirtualrouterrol E． C．RouterBisthemastervirtualrouter，andRouterAisthebackupvirtualrouter．WhenRouterBfails，RouterAwillbecomethemastervirtualrouter．WhenRouterBrecovers，RouterAwillmaintaintheroleofmastervirtualrouter． D．RouterBisthemastervirtualrouter，andRouterAisthebackupvirtualrouter．WhenRouterBfails，RouterAwillbecomethemastervirtualrouter．WhenRouterBrecovers，itwillregainthemastervirtualrouterrol E．

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• 在排除VRRP备份组双故障时。在配置VRRP备份组两端的VLANIF接口上执行dispalythis，下列哪项说法是错误的？（）

  A．需要检查接口上的备份组ID是否相同 B．需要检查VRRP组的虚拟IP地址是否相同 C．需要检测接口IP是否在同一个网段 D．不需要检测VRRP中通告报文时间间隔是否相同

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