A new router is added to an existing HSRP standby group. One of the existing routers is in anactive state， the other is in a standby state. Under what circumstance will the new router becomethe active router？（）A、The new router will become active immediate

第1题：

第2题：

You want to allow Router R1 to immediately become the active router if its priority is highest than  the active router fails.  What command would you use if you wanted to configure this？ （）

• A、 en standby preempt
• B、 standby preempt enable
• C、 standby preempt
• D、 hot standby preempt

第3题：

A new router, named TK1, is being installed. You wish to add this router to your existing OSPF network. In doing so, you configure the following: TK1(config)# router ospf 1 TK1(config-router)# network 10.10.10.0 255.255.255.0 area 0 After making this change, you notice that the networks attached to TK1 are not being learned by the other OSPF routers. What could be the cause of this?（）

• A、The AS is not correctly configured
• B、The network subnet mask is incorrectly configured
• C、The network wildcard mask is configured incorrectly
• D、The network number is not correctly configured
• E、The process id is configured incorrectly
• F、None of the above

第4题：

You need to upgrade the IOS of an existing router on your network. The new IOS image is located on a TFTP server that you have set up within the network. What command should you issue in order to download the new IOS version?（）

• A、Router# copy tftp flash
• B、Router# copy flash run
• C、Router(config)# restore flash
• D、Router(config)# repair flash
• E、Router#copy flash tftp
• F、Router# copy start flash

第5题：

Routers R1 and R2 use HSRP so that one router will back up the other should there be a failure.   Which two statements are true about the Hot Standby Router Protocol （HSRP）？ （）

• A、 Load sharing with HSRP is achieved by creating multiple subinterfaces on the HSRP routers.  
• B、 Routers configured for HSRP can belong to multiple groups and multiple VLANs.
• C、 Load sharing with HSRP is achieved by creating HSRP groups on the HSRP routers.
• D、 All routers configured for HSRP load balancing must be configured with the same priority.  
• E、 Routers configured for HSRP must belong to only one group per HSRP interface.

第6题：

Which of the following HSRP router states does an active router enter when it is preempted by a  higher priority router？（）

• A、 active
• B、 speak
• C、 learn
• D、 listen
• E、 init
• F、 standby

第7题：

Router R1 and R2 are both configured for HSRP.  Which two statements about the HSRP priorities  of these two routers are true？（）

• A、 To assign the HSRP router priority in a standby group， the standby group-number priority  priority-value global configuration command must be used.
• B、 The default priority of a router is zero （0）.
• C、 The no standby priority command assigns a priority of 100 to the router.
• D、 Assuming that preempting has also been configured， the router with the lowest priority in an  HSRP group would become the active router.
• E、 When two routers in an HSRP standby group are configured with identical priorities， the router  with the highest configured IP address will become the active router.

第8题：

A network administrator is trying to add a new router into an established OSPF network.The networks attached to the new router do not appear in the routing tables of the other OSPF routers.Given the information in the partial configuration shown below,what configuration error is causing this problem? （）Router(config)#router ospf 1Router(config-router)#network 10.0.0.0 255.0.0.0 area 0

• A、The process id is configured improperly
• B、The OSPF area is configured improperly
• C、The network wildcard mask is configured improperly
• D、The network number is configured improperly
• E、The AS is configured improperly
• F、The network subnet mask is configuerd improperly

第9题：

There are three routers on a Gigabit Ethernet LAN: Router A, Router B, and Router C. Router A is the Designated Intermediate System (DIS) at Level 1 for that LAN. Router A's DIS priority is 64. The LAN is a Level 1-only link. Router D has just been powered up on that same LAN and its DIS priority is 80. Which statement is true?（）

• A、Router A remains the DIS and generates a new pseudonode LSP for that LAN
• B、Router A remains the DIS and NO new pseudonode LSP is generated for that LAN
• C、Router D becomes the new DIS, generates a new pseudonode LSP for that LAN, and purges the old pseudonode LSP generated by Router A
• D、Router D becomes the new DIS, does NOT generate a new pseudonode LSP for that LAN, and does NOT purge the old pseudonode LSP generated by Router A

第10题：

第11题：

第12题：

第13题：

In a GLBP network, who is responsible for the arp request?（）

• A、AVF
• B、AVG(active virtual gateway)
• C、Active Router
• D、Standby Router

第14题：

You administer a network that uses two routers， R1 and R2， configured as an HSRP group to  provide redundancy for the gateway. Router R1 is the active router and has been configured as  follows：   R1#configure terminal   R1（config）#interface fa0/0   R1（config-if）#ip address 10.10.0.5 255.255.255.0   R1（config-if）#standby 1 priority 150   R1（config-if）#standby preempt delay minimum 50   R1（config-if）#standby 1 track interface fa0/2 15   R1（config-if）#standby 1 ip 10.10.0.20   Which of the following describes the effect the standby preempt delay minimum 50 command will  have on router R1？（）

• A、 The HSRP priority for router R1 will increase to 200.
• B、 Router R1 will become the standby router if the priority drops below 50.
• C、 The HSRP priority for router R1 will decrease to 50 points when Fa0/2 goes down.  
• D、 Router R1 will wait 50 seconds before attempting to preempt the active router.

第15题：

Routers R1 and R2 are configured for HSRP as shown below：   Router R1：   interface ethernet 0   ip address 20.6.2.1 255.255.255.0   standby 35 ip 20.6.2.21   standby 35 priority 100   interface ethernet 1   ip address 20.6.1.1.2 255.255.255.0   standby 34 ip 20.6.1.21    Router R2：   interface ethernet 0   ip address 20.6.2.2 255.255.255.0   standby 35 ip 20.6.2.21   interface ethernet 1   ip address 20.6.1.1.1 255.255.255.0   standby 34 ip 20.6.1.21  standby 34 priority 100   You have configured the routers R1 & R2 with HSRP. While debugging router R2 you notice very   frequent HSRP group state transitions.  What is the most likely cause of this？ （）

• A、 physical layer issues
• B、 no spanning tree loops
• C、 use of non-default HSRP timers
• D、 failure to set the command standby 35 preempt

第16题：

Hot Standby Router Protocol (HSRP) is able to provide network redundancy for IP networks. Concerning HSRP load sharing, which two descriptions make sense?（）

• A、It is achieved by using more than one HSRP group.
• B、It is done in regards to either round robin or weight basis.
• C、It is used to offload the active router in a certain HSRP group.
• D、The return traffic is influenced by HSRP load sharing configuration.
• E、Single group HSRP is used to achieve more efficient link utilization.

第17题：

Routers R1 and R2 are configured for HSRP as shown below： Router R1： interface ethernet 0 ip address 20.6.2.1 255.255.255.0 standby 35 ip 20.6.2.21 standby 35 priority 100 interface ethernet 1 ip address 20.6.1.1.2 255.255.255.0 standby 34 ip 20.6.1.21 Router R2： interface ethernet 0 ip address 20.6.2.2 255.255.255.0 standby 35 ip 20.6.2.21 interface ethernet 1 ip address 20.6.1.1.1 255.255.255.0 standby 34 ip 20.6.1.21 standby 34 priority 100 You have configured the routers R1 & R2 with HSRP. While debugging router R2 you notice veryfrequent HSRP group state transitions. What is the most likely cause of this？（）

• A、physical layer issues
• B、no spanning tree loops
• C、use of non-default HSRP timers
• D、failure to set the command standby 35 preempt

第18题：

A new Backup Connection is being deployed on a remote site router. the stability of the connection has been a concern. in order to provide more information to EIGRP Regarding this interface， You wish to incorporate the "Reliability" cost metric in the EIGRP Calculation with the command metric weights 1 0 1 0 1. What impact will this modification on the remote site router have for other existing EIGRP neighborships from the same EIGRP Domain？（）

• A、Existing Neighbors will immediately begin using the new metric.
• B、Existing Neighbors will use the new metric after clearing the EIGRP Neighbors.
• C、Existing Neighbors will resync， maintaining the neighbor relationship
• D、All ecisting neighbor relationships will go down

第19题：

在一个GLBP网络，谁负责的ARP请求？（）

• A、 AVF
• B、 AVG
• C、 Active Router（活动路由器）
• D、 Standby Router（备份路由器）

第20题：

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

第21题：

第22题：

第23题：