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.
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.
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某局域网通过两个路由器划分为三个子网，拓扑结构和地址分配如图1所示。1．以下是路由器R1的部分配置命令列表：Router＞enRouter＞conf termRouter (config) hostname R1Router (config) int e0R1 Router (config-if) (1)R1 Router (config-if) no shutdownR1 Router (config-if) (2)R1 Router (config) ip routingR1 Router (config) (3)请为空缺处(1)、(2)、(3)添加合适的命令/参数，实现R1的正确配置。2．以下是路由器R2的配置命令列表：Router＞enRouterconf termRouter (config) hostname R2R2 (config) int e0R2 (config-if) ip address 192.168.3.1 255.255.255.0R2 (config-if) no shutdownR2 (config-if) int s0R2 (config-if) ip address l92.168.2.2 255.255.255.0R2 (config-if) no shutdownR2 (config-if) (4)R2 (config) ip routingR2 (config) ip route 0.0.0.00.0.0.0 (5)R2 (config) ip classlessR2 (config) exitR2copy run start请为空缺处(4)、(5)添加合适的命令/参数，实现R2的正确配置。
一台Cisc0路由器R1的第3模块第1端口通过DDN的E1专线与一台远程路由器R2的第4模块第2端口相连，在R1的端口上封装PPP协议。为R1和R2端口分配的IP地址分别为193．42．91．201/30和193．42．91．202/30。下列R2的端口配置，正确的是（ ）。A.Router（cortfig）#interface s4/2Router（config-if）#bandwidth 2048Router（config-if）#ip address 193．42．91．202 255．255．255．252Router（config-if）#encapsulation PPPRouter（config-if）#exitB.Router（config）#interface a4/2Router（config-if）#bandwidth 2048Router（config-if）#ip address 193．42．91．202 255．255．255．252Router（config-if）#encapsulation PPPRouter（config-if）#exitC.Router（config）#interface s4/2Router（config-if）#bandwidth 2048Router（config-if）#ip address 193．42．91．201 255．255．255．252Router（config-if）#encapsulation hdleRouter（config-if）#exitD.Router（config）#interface a4/2Router（config-if）#bandwidth 2048Router（config-if）#ip address 193．42．91．202 255．255．255．252Router（config-if）#encapsulation hdlcRouter（config-if）#exit
阅读以下说明，回答问题1和问题2，将解答填入答题纸对应的解答栏内。 【说明】 某公司有3个分支机构，网络拓扑结构及地址分配如图4-1所示。【问题1】（每空1分，共11分） 公司申请到202.111.1.0/29的公有地址段，采用NAPT技术实现公司内部访问互联网的要求，其中，192.168.16.0/22网段禁止访问互联网。 R1、R2和R3的基本配置已正确配置完成，其中R1的配置如下。请根据拓扑结构，完成下列配置代码。 R1的基本配置及NAPT配置如下： R1enable Rlconfig tenrunal R1(config)interface fastenthemet 0/0 R1(config-if)ip address 192.168.0.1 255.255.255.252 R1(config-if)no shutdown Rl(config-if)exit R1(config)interface fastenthemet 0/1 R1(config-if)ip address 192.168.0.9 255.255.255.252 R1(config-if)no shutdown R1(config-if)exit R1(config)interface fastenthernet 0/2 R1(config-if)ip address （1） 255.255.252.0 //使用网段中最后一个地址 R1(config-if)no shutdown R1(config-if)exit R1(config)interface serial 0 R1(config-if)ip address 202.111.1.1 255.255.255.248 R1(config-if)no shutdown R1(corffig)ip nat pool ss 202.111.1.1 （2） netmask （3） R1(corffig) interface （4） fastenthernet 0/0-1 R1(config-if)ip nat （5） R1(config-if)interface serial 0 Rl(config-if)ip nat （6） R1(config-if)exit R1(config)access-Iist l permit 192.168.0.0 （7） Rl(config)ip nat inside （8） list （9） pool （10） （11） 【问题2】．（每空2分，共4分） 在R1、R2和R3之间运行OSPF路由协议，其中R1、R2和R3的配置如下。 行号 配置代码 1 R1(config)router ospf 1 2 R1(config-router)network 192.168.4.0 0.0.3.255 area 0 3 Rl(config-router)network 192.168.0.0 0.0.0.3 area 0 4 Rl(config-router)network 192.168.0.8 0.0.0.3 area 0 5 R2enable 6 R2config terminal 7 R2(config)router ospf 2 8 R2(config-router)netvrork 192.168.8.0 0.0.3.255 area 0 9 R2 (config-router)network 192.168.12.0 0.0.3.255 area 0 1 0 R2 (config-router)network 192.168.0.4 00.0.3 area 0 1 1 R3enable 1 2 R3config terminal 1 3 R3(config)router ospf 3 1 4 R3(config-router)netvrork 192168.0.8 00.0.3 area 0 1 5 R3(config-router)network 192.168.0.4 0.0.0.3 area 0 1．配置完成后，在R1和R2上均无法ping通R3的局域网，可能的原因是（12）。 （12）备选答案： A．在R3上未宣告局域网路由 B．以上配置中第7行和第13行配置错误 C．第1行配置错误 D．R1、R2未宣告直连路由． 2．在OSPF中重分布默认路由的命令是：（13）。 （13）备选答案： A．Rldefault-informaton originate B．R1(config-if)default-information originate C．R1(config-router)default-information originate D．Rl(config)default-information originate
Router R1, in ASN 11, learns a BGP route from BGP peer R22 in ASN 22. R1 and then uses BGP to advertise the route to R2, also in ASN 11. What ASNs would you see in the BGP table on R2 for this route?（）A. 22B. 11C. 1D. None
Refer to the exhibit. Routers R1 and R2 have established a neighbor relationship and are exchanging routing information. The network design requires that R1 r eceive routing updates from R2, but not advertise any routes to R2. Which configuration command sequence will successfully accomplish this task? （）A. R1(config)# router eigrp 1 R1(config - router)# passive - interface serial 0B. R1(config)# access - list 2 0 deny any R1(config)# router eigrp 1 R1(config - router)# distribute - list 20 out serial 0C. R2(config)# access - list 20 permit any R2(config)# router eigrp 1 R2(config - router)# distribute - list 20 in serial 0D. R1(config)# access - list 20 permit any R 1(config)# router eigrp 1 R1(config - router)# distribute - list 20 in serial 0E. R2(config)# access - list 20 deny any R2(config)# router eigrp 1 R2(config - router)# distribute - list 20 out serial 0F. R2(config)# router eigrp 1 R2(config - router)# passive - interface serial 0
Refer to the exhibit. EIGRP had converged in AS 1 when the link between router R1 and R2 went down. The console on router R2 generated the following messages:*Mar 20 12:12:06: %DUAL - 5NBRCHANG E: IP - EIGRP 1: Neighbor 10.1.4.3 (Serial0) is down: stuck in active*Mar 20 12:15:23: %DUAL -3- SIA: Route 10.1.1.0/24 stuck - in - active state in IP - EIGRP 1.Cleaning up The network administrator issued the show ip eigrp topology active command on R2 to check the status of the EIGRP network.Which statement best describes the reason for the error messages?（）A. Incorrect bandwidth configuration on router R3 prevents R2 from establishing neighbor adjacency.B. Incorrect bandwidth configuration on router R 5 prevents R2 from establishing neighbor adjacency.C. Router R3 did not reply to the query about network 10.1.1.0/24 sent by router R2 .D. Router R5 did not reply to the query about network 10.1.1.0/24 sent by router R2 .
Refer to the exhibit. OSPF has been configured on all routers in the network. However, router R1 does not receive a default route to router R2 as in tended. Which configuration change would ensure that R1 would receive a default route from R2? （）A. Add the area 1 stub command on routers R1.B. Add the always keyword to the default - information originate configuration command on router R2.C. Remov e the default information originate configuration command from router R2 and place it on router R1.D. Add the ip route 5.0.0.0 255.255.255.0 0.0.0.0 command to router R2.
Refer to the exhibit and the partial configuration on router R2. On router R4 all RIP routes are redistributed into the OSPF domain. A second redistribu tion is configured on router R2 using a route map. Based on the configuration on router R2, which EIGRP external routes will be present in the routing table of R1?（）A. the routes originating from the RIP routing domainB. the routes originating from the OSPF stub areaC. all OSPF inter and intra - area routesD. all routes originating from RIP and OSPF routing domains
Refer to the exhibit. OSPF is configured on all routers in the network. On the basis of the show ip ospf n eighbor output, what prevents R1 from establishing a full adjacency with R2? () A. Router R1 will only establish full adjacency with the DR and BDR on broadcast multi- access networks.B. Router R2 has been elected as a DR for the broadcast multiaccess network in OSPF area 1.C. Routers R1 and R2 are configured as stub routers for OSPF area 1 and OSPF area 2.D. Router R1 and R2 are configured for a virtual link between OSPF area 1 and OSPF area 2.E. The Hello parameters on routers R1 and R2 do not m atch.
Refer to the exhibit. All routers have Protocol Independent Multicast (PIM) enabled interfaces. On the basis of the configuration provided on routers R1 and R2, which router will take on the func tion of rendezvous point (RP) for the multicast network? （）A. both routers R1 and R2B. router R1C. router R2D. none of the routers since they are not configured with static RP
Refer to the exhibit. Network 10.0.0.0／8 is being advertised to autonomous system 65550 via both external links. Which statement about the preferred path to the 10.0.0.0／8 network is true? () A. Router R2 will be preferred because it has the higher neighbor IP address.B. Router R2 will be preferr ed because its neighbor has a lower autonomous system number.C. Router R1 will be preferred because it has a lower local preference.D. Router R2 will be preferred because it has a higher local preference.E. Router R1 will be preferred because its nei ghbor has the higher autonomous system number.F. Router R1 will be preferred because it has the lower neighbor IP address.
Refer to the exhibit. On the basis of the configuration that is provided, how would the BGP updates that come from router R1 be replicated inside autonomous system 65200?() A. All BGP updates that are received on router R 2 will be sent to routers R3 and R4. Routers R3 and R4 will then forward those BGP updates to router R5B. None of the BGP updates that are received on router R2 will ever be received by router R5C. All BGP updates that are received on router R2 will not be sent to routers R3 and R4D. All BGP updates that are received on router R2 will be sent directly to router R5
Refer to the exhibit. Routers R1 and R2 are running EIGRP and have converged. On the basis of the information that is presented, which statement is true? () A. Both outgoing and incoming routing updates on R1 will be permitted because the d istribute - list 20 out Serial0/0 command cannot be used with association with the outgoing interface.B. All incoming routing updates from R2 will be suppressed, but the outgoing updates will continue to be sent.C. Both outgoing and incoming routing up dates on R1 will be stopped because of the passive - interface Serial0/0 configuration statement.D. All outgoing routing updates from router R1 to router R2 will be suppressed, but the inbound updates will continue to be received.
Refer to the exhibit. The company uses EIGRP as the routing protocol. What path will packets take from a host on 192.168.10.192／26 network to a host on the LAN attached to router R1?() A.The path of the packets will be R3 to R2 to R1.B.The path of the packets will be R3 to R1 to R2.C.The path of the packets will be both R3 to R2 to R1 and R3 to R1.D.The path of the packets will be R3 to R1
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.
A router has learned three possible routes that could be used to reach a destination network. One route is from EIGRP and has a composite metric of 20514560. Another route is from OSPF with a metric of 782.The last is from RIPv2 and has a metric of 4. Which route or routes will the router install in the routing table?（）A、Router R2 will not form a neighbor relationship with R1.B、Router R2 will obtain a full routing table, including a default route, from R1.C、R2 will obtain OSPF updates from R1, but will not obtain a default route from R1.D、R2 will not have a route for the directly connected serial network, but all other directly connected
You have just completed an OSPF implementation. While executing your verification plan, you determine that R1 is not able to establish full OSPF adjacency with R2. The show ip ospf neighbor comman d output on R1 shows that R2 is stuck in the INIT state. What could be the cause of this problem?（）A、DR and BDR election errors between R1 and R2.B、The R2 router has not received the OSPF hello packets from the R1 router.C、Mismatched interface ma ximum transmission unit (MTU) configuration between the R1 and R2.D、Mismatched OSPF hello interval configuration between the R1 and R2E、Corrupted LSAs exchanges between the R1 and R2.
What must be configured on the network in order for users on the Internet to view web pages located on Web Server 2?（）A、On router R2， configure a default static route to the 192.168.1.0 network.B、On router R2， configure DNS to resolve the URL assigned to Web Server 2 to the 192.168.1.10 address.C、On router R1， configure NAT to translate an address on the 209.165.100.0/24 network to 192.168.1.10.D、On router R1， configure DHCP to assign a registered IP address on the 209.165.100.0/24 network to Web Server 2.
Router R1 sits inside OSPF area 1. Router R2 redistributes an E1 route into OSPF for prefix 2.2.2.0/24, with external metric 20. Router R22 redistributes an E2 route for the same prefix/length, external metric 10. Under what conditions will R1 choose as it s best route the route through R22?（）A、R1 will always choose the route through R22.B、As long as R1's best internal OSPF cost to reach R22 is less than 10.C、As long as R1's best internal OSPF cost to reach R22 is less than 20.D、R1 will never choo se the route through R22 if the E1 route through R2 is available.
单选题Router R1 sits inside OSPF area 1. Router R2 redistributes an E1 route into OSPF for prefix 2.2.2.0/24, with external metric 20. Router R22 redistributes an E2 route for the same prefix/length, external metric 10. Under what conditions will R1 choose as it s best route the route through R22?（）AR1 will always choose the route through R22.BAs long as R1's best internal OSPF cost to reach R22 is less than 10.CAs long as R1's best internal OSPF cost to reach R22 is less than 20.DR1 will never choo se the route through R22 if the E1 route through R2 is available.
单选题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 issuesB no spanning tree loopsC use of non-default HSRP timersD failure to set the command standby 35 preempt
单选题Router R1, in ASN 11, learns a BGP route from BGP peer R22 in ASN 22. R1 and then uses BGP to advertise the route to R2, also in ASN 11. What ASNs would you see in the BGP table on R2 for this route?（）A22B11C1DNone
单选题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？（）Aphysical layer issuesBno spanning tree loopsCuse of non-default HSRP timersDfailure to set the command standby 35 preempt
单选题What must be configured on the network in order for users on the Internet to view web pages located on Web Server 2?（）AOn router R2， configure a default static route to the 192.168.1.0 network.BOn router R2， configure DNS to resolve the URL assigned to Web Server 2 to the 192.168.1.10 address.COn router R1， configure NAT to translate an address on the 209.165.100.0/24 network to 192.168.1.10.DOn router R1， configure DHCP to assign a registered IP address on the 209.165.100.0/24 network to Web Server 2.