R1 is internal to area 1, and R2 is internal to area 2. Subnet 10.1.1.0/24 exists in area 2 as a connected subnet off R2. ABR ABR1 connects area 1 to backbone area 0, and ABR2 c onnects area 0 to area 2.Which of the following LSAs must R1 use when calculating R1‘s best route for 10.1.1.0/24?（）A. R2‘s Type 1 LSAB. Subnet 10.1.1.0/24‘s Type 2 LSAC. ABR1‘s Type 1 LSA in area 0D. Subnet 10.1.1.0/24‘s Type 3 LSA in Area 0E. Subnet 10.1.1.0/24‘s Type 3 LSA in Area 1
R1 is internal to area 1, and R2 is internal to area 2. Subnet 10.1.1.0/24 exists in area 2 as a connected subnet off R2. ABR ABR1 connects area 1 to backbone area 0, and ABR2 c onnects area 0 to area 2.Which of the following LSAs must R1 use when calculating R1‘s best route for 10.1.1.0/24?（）
A. R2‘s Type 1 LSA
B. Subnet 10.1.1.0/24‘s Type 2 LSA
C. ABR1‘s Type 1 LSA in area 0
D. Subnet 10.1.1.0/24‘s Type 3 LSA in Area 0
E. Subnet 10.1.1.0/24‘s Type 3 LSA in Area 1
相关考题：
路由器R1的拓扑连接和地址分配如下图所示，如果在R1上安装OSPF协议，运行命令：router ospf 200，则配置E0和E1端口的命令分别是______。A．network 10.1.1.0 255.255.255.0 area 0 network 192.168.1.0 255.255.255.0 area 1B．network 10.1.1.1 255.255.255.0 area 0 network 192.168.1.1 255.255.255.0 area 1C．network 10.1.1.255 0.0.0.8 area 0 network 192.168.1.255 0.0.0.8 area 1D．network 10.1.1.0 0.0.0．255 area 0.0.0.0 network 192.168.1.0 0.0.0.255 area 1
路由器R1的拓扑连接和地址分配如图1-9所示，如果在R1上安装OSPF协议，运行下列命令：router ospf 200，则配置E0和E1端口的命令分别是(40)。A．network 10.1.1.0 255.255.255.0 area 0 network 192.168.1.0 255.255.255.0 area 1B．network 10.1.1.1 255.255.255.0 area 0 network 192.168.1.1 255.255.255.0 area 1C．network 10.1.1.255 0.0.0.8 area 0 network 192.168.1.255 0.0.0.8 area 1D．network 10.1.1.0 0.0.0.255 area 0.0.0.0 network 192.168.1.0 0.0.0.255 area 1
On Router R1, process EIGRP 1 is redistributing routes from process OSPF 2, calling route - map fred with the redistribute ospf 2 command. R1 has learned intra - area routes for 10.1.1.0/24 and10.1.2.0/24 in part due to the Type 2 LSAs known for each subnet. The route map filters route 10.1.1.0/24 and allows 10.1.2.0/24 througH.Which of the following co mmands on router R1 list subnet 10.1.1.0/24?（）A. show ip routeB. show ip eigrp topologyC. show ip ospf topologyD. show ip eigrp topology 10.1.1.0/24
ABR R1 has been configured with an area 1 stub no － summary command. Which stubby area type is area 1?() A. StubB. Totally stubbyC. NSSAD. Totally NSSA
The following output exists on Router R1, a router internal to area 1. What can you d etermine as true from the output of the show ip ospf database summary command?() A. The LSA was created by an ABR due to an area range command.B. The LSA was created by an ASBR due to a summary - address command.C. If cr eated by an area range command, the best metric for a subordinate subnet on that ABR must have been 11.D. None of the other answers is correct.
You are developing a verification plan for an upcoming OSPF implementation. Part of this plan is to verify the status of type 3 LSAs within the network. Which routers should you verify first to ensure that the configuration s are correct for generating type 3 LSAs?（）A. Internal routers within the backbone area (area 0)B. Internal routers within the NSSAsC. Internal routers within the stubby areasD. ASBRsE. ABRsF. DRs and BDRs
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.
什么命令序列将配置一个路由器运行OSPF,并添加网络10.1.1.0／24 area0?() A.routerospfarea0network10.1.1.0255.255.255.0area0B.routerospfnetwork10.1.1.00.0.0.255C.routerospf1network10.1.1.00.0.0.255area0D.routerospfarea0network10.1.1.00.0.0.255area0E.routerospfnetwork10.1.1.0255.255.255.0area0F.routerospf1network10.1.1.00.0.0.255
路由器R1的拓扑连接和地址分配如图5-3所示，如果在R1上安装OSPF协议，运行命令router ospf 200，则配置E0和E1端口的命令分别是(26)。A．network 10.1.1.0255.255.255.0 area0 network 192.168.1.0 255.255.255.0 area 1B．network 10.1.1.1 255.255.255.0 area0 network 192.168.1.1 255.255.255.0 area 1C．network 10.1.1.255 0.0.0.8 area 0 network 192.168.1.255 0.0.0.8 area 1D．network 10.1.1.0 0.0.0.255 area 0.0.0.0 network 192.168.1.0 0.0.0.255 area 1
Which of the following is an OSPF configuration parameter that is used on an ABR, but not on an internal router？（）A、A virtual link to area 0.B、OSPF summarization command.C、default - cost extension to the area command.D、no - summary extension to the area stub comm and.E、None of the other alternatives apply
R1, an ABR between backbone area 0 and area 1, has intra - area routes in area 0 for 10.1.1.0/24,10.1.2.0/24, and 10.1.3.0/24. These routes have metrics of 21, 22, and 23, respectively. An engineer then adds the area 0 r ange 10.1.0.0 255.255.0.0 command under the OSPF process of R1. Which of the following is true?（）A、R1 loses and then re - establishes neighborships with all neighbors.B、R1 no longer advertises 10.1.1.0/24 to neighbors into area 1.C、R1 advertises a 1 0.1.0.0/16 route into area 1 with a metric of 23 (largest metric).D、R1 advertises a 10.1.0.0/16 route into area 1 with metric of 21 (lowest metric).
R1 is internal to area 1, and R2 is internal to area 2. Subnet 10.1.1.0/24 exists in area 2 as a connected subnet off R2. ABR ABR1 connects area 1 to backbone area 0, and ABR2 c onnects area 0 to area 2. Which of the following LSAs must R1 use when calculating R1's best route for 10.1.1.0/24?（）A、R2's Type 1 LSAB、Subnet 10.1.1.0/24's Type 2 LSAC、ABR1's Type 1 LSA in area 0D、Subnet 10.1.1.0/24's Type 3 LSA in Area 0E、 Subnet 10.1.1.0/24's Type 3 LSA in Area 1
A network de sign shows area 1 with three internal routers, area 0 with four internal routers, and area 2 with five internal routers. Additionally, one ABR (ABR1) connects areas 0 and 1, plus a different ABR (ABR2) connects areas 0 and 2. How many Type 1 LSAs would b e listed in ABR2's LSDB?（）A、6B、7C、15D、12E、None of the other answers is correct.
The following command output was gathered from Router R1, an ABR between areas 0 (backbone) and area 1. In this internetwork, area 0 contains all the subnets of cla ss A network 10.0.0.0. R1's OSPF process has a distribute - list prefix question in command configured. Assuming the subnets listed in the answers actually exist in area 0. Which of the following occurs on router R1?（） R1#sh ip prefix - list ip prefix - list question: 4 entries seq 5 deny 10.1.2.0/24 ge 25 le 27 seq 15 deny 10.2.0.0/16 ge 30 le 30 seq 20 permit 0.0.0.0/0 le 32A、R1 will not create/flood a type 3 LSA for subnet 10.1.2.0/26 into area 1B、R1 will not create/flood a Type 3 LSA for subnet 1 0.1.2.0/24 into area 1C、R1 will not have an OSPF route for subnet 10.1.2.0/26 in its IP routing tablED、R1 will not have an OSPF route for subnet 10.1.2.0/24 in its IP routing tablE
You are developing a verification plan for an upcoming OSPF implementation. Part of this plan is to verify the status of type 3 LSAs within the network. Which routers should you verify first to ensure that the configuration s are correct for generating type 3 LSAs?（）A、Internal routers within the backbone area (area 0)B、Internal routers within the NSSAsC、Internal routers within the stubby areasD、ASBRsE、ABRsF、DRs and BDRs
Use the same scenario as the previous question, w ith one changE.Instead of the distribute-list prefix question in command configured on R1,R1's OSPF process has an area 1 filter-list prefix question in commandconfigured. Again assuming that the subnets listed in the answers actually exist in area 0. Which of the following occurs on router R1?（） R1#sh ip prefix - list ip prefix - list question: 4 entries seq 5 deny 10.1.2.0/24 ge 25 le 27 seq 15 deny 10.2.0.0/16 ge 30 le 30 seq 20 permit 0.0.0.0/0 le 32A、R1 will not create/flood a type 3 LSA for su bnet 10.1.2.0/26 into area 1B、R1 will not create/flood a Type 3 LSA for subnet 10.1.2.0/24 into area 1C、R1 will not have an OSPF route for subnet 10.1.2.0/26 in its IP routing tablED、R1 will not have an OSPF route for subnet 10.1.2.0/24 in its IP routing tablE
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.
什么命令序列将配置一个路由器运行OSPF，并添加网络10.1.1.0/24 area0？（）A、router ospf area 0 network 10.1.1.0 255.255.255.0 area 0B、router ospf network 10.1.1.0 0.0.0.255C、router ospf 1 network 10.1.1.0 0.0.0.255 area 0D、router ospf area 0 network 10.1.1.0 0.0.0.255 area 0E、router ospf network 10.1.1.0 255.255.255.0 area 0F、router ospf 1 network 10.1.1.0 0.0.0.255
What type of router cannot exist within a stub area？（）A、 ABRB、 ASBRC、 internal routerD、 non-backbone router
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ABR R1 has been configured with an area 1 stub no - summary command. Which stubby area type is area 1?（）AStubBTotally stubbyCNSSADTotally NSSA
单选题Use the same scenario as the previous question, w ith one changE.Instead of the distribute-list prefix question in command configured on R1,R1's OSPF process has an area 1 filter-list prefix question in commandconfigured. Again assuming that the subnets listed in the answers actually exist in area 0. Which of the following occurs on router R1?（） R1#sh ip prefix - list ip prefix - list question: 4 entries seq 5 deny 10.1.2.0/24 ge 25 le 27 seq 15 deny 10.2.0.0/16 ge 30 le 30 seq 20 permit 0.0.0.0/0 le 32AR1 will not create/flood a type 3 LSA for su bnet 10.1.2.0/26 into area 1BR1 will not create/flood a Type 3 LSA for subnet 10.1.2.0/24 into area 1CR1 will not have an OSPF route for subnet 10.1.2.0/26 in its IP routing tablEDR1 will not have an OSPF route for subnet 10.1.2.0/24 in its IP routing tablE
多选题R1, an ABR between backbone area 0 and area 1, has intra - area routes in area 0 for 10.1.1.0/24,10.1.2.0/24, and 10.1.3.0/24. These routes have metrics of 21, 22, and 23, respectively. An engineer then adds the area 0 r ange 10.1.0.0 255.255.0.0 command under the OSPF process of R1. Which of the following is true?（）AR1 loses and then re - establishes neighborships with all neighbors.BR1 no longer advertises 10.1.1.0/24 to neighbors into area 1.CR1 advertises a 1 0.1.0.0/16 route into area 1 with a metric of 23 (largest metric).DR1 advertises a 10.1.0.0/16 route into area 1 with metric of 21 (lowest metric).
单选题A network de sign shows area 1 with three internal routers, area 0 with four internal routers, and area 2 with five internal routers. Additionally, one ABR (ABR1) connects areas 0 and 1, plus a different ABR (ABR2) connects areas 0 and 2. How many Type 1 LSAs would b e listed in ABR2's LSDB?（）A6B7C15D12ENone of the other answers is correct.
单选题R1 is internal to area 1, and R2 is internal to area 2. Subnet 10.1.1.0/24 exists in area 2 as a connected subnet off R2. ABR ABR1 connects area 1 to backbone area 0, and ABR2 c onnects area 0 to area 2. Which of the following LSAs must R1 use when calculating R1's best route for 10.1.1.0/24?（）AR2's Type 1 LSABSubnet 10.1.1.0/24's Type 2 LSACABR1's Type 1 LSA in area 0DSubnet 10.1.1.0/24's Type 3 LSA in Area 0E Subnet 10.1.1.0/24's Type 3 LSA in Area 1
单选题Which of the following is an OSPF configuration parameter that is used on an ABR, but not on an internal router？（）AA virtual link to area 0.BOSPF summarization command.Cdefault - cost extension to the area command.Dno - summary extension to the area stub comm and.ENone of the other alternatives apply
单选题The following command output was gathered from Router R1, an ABR between areas 0 (backbone) and area 1. In this internetwork, area 0 contains all the subnets of cla ss A network 10.0.0.0. R1's OSPF process has a distribute - list prefix question in command configured. Assuming the subnets listed in the answers actually exist in area 0. Which of the following occurs on router R1?（） R1#sh ip prefix - list ip prefix - list question: 4 entries seq 5 deny 10.1.2.0/24 ge 25 le 27 seq 15 deny 10.2.0.0/16 ge 30 le 30 seq 20 permit 0.0.0.0/0 le 32AR1 will not create/flood a type 3 LSA for subnet 10.1.2.0/26 into area 1BR1 will not create/flood a Type 3 LSA for subnet 1 0.1.2.0/24 into area 1CR1 will not have an OSPF route for subnet 10.1.2.0/26 in its IP routing tablEDR1 will not have an OSPF route for subnet 10.1.2.0/24 in its IP routing tablE
多选题On Router R1, process EIGRP 1 is redistributing routes from process OSPF 2, calling route - map fred with the redistribute ospf 2 command. R1 has learned intra - area routes for 10.1.1.0/24 and 10.1.2.0/24 in part due to the Type 2 LSAs known for each subnet. The route map filters route 10.1.1.0/24 and allows 10.1.2.0/24 througH. Which of the following co mmands on router R1 list subnet 10.1.1.0/24?（）Ashow ip routeBshow ip eigrp topologyCshow ip ospf topologyDshow ip eigrp topology 10.1.1.0/24