200-301 Question #683: Real Exam Question with Answer & Explanation

Question

Lab Simulation 1 Guidelines This is a lab item in which tasks will be performed on virtual devices. - Refer to the Tasks tab to view the tasks for this lab item - Refer to the Topology tab to access the device console(s) and perform the tasks. - Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window. - All necessary preconfiguralions have been applied. - Do not change the enable password or hostname for any device. - Save your configurations to NVRAM before moving to the next item. - Click Next at the bottom of the screen to submit this lab and move to the next question - When Next is clicked, the lab closes and cannot be reopened Topology Tasks IP connectivity between the three routers is configured. OSPF adjacencies must be established. 1. Configure R1 and R2 Router IDs using the interface IP addresses from the link that is shared between them. 2. Configure the R2 links with a max value facing R1 and R3. R2 must become the DR. R1 and R3 links facing R2 must remain with the default OSPF configuration for DR election. Verify the configuration after clearing the OSPF process. 3. Using a host wildcard mask, configure all three routers to advertise their respective Loopback1 networks. 4. Configure the link between R1 and R3 to disable their ability to add other OSPF routers. Answer: R1>en R1# config t R1(config)# interface G0/1 R1(config-if)# ip ospf network point-to-point R1(config-if)# exit R1(config)# router ospf 1 R1(config-router)# router-id 10.10.12.1 R1(config-router)# network 192.168.1.1 0.0.0.0 area 0 R1(config-router)# end R1# clear ip ospf process yes R1# write R2>en R2# config t R2(config)# interface G0/0 R2(config-if)# ip ospf priority 255 R2(config-if)# interface G0/2 R2(config-if)# ip ospf priority 255 R2(config-if)# exit R2(config)# router ospf 1 R2(config-router)# router-id 10.10.12.2 R2(config-router)# network 192.168.2.2 0.0.0.0 area 0 R2(config-router)# end R2# clear ip ospf process yes R2# write R3>en R3# config t R3(config)# interface G0/1 R3(config-if)# ip ospf network point-to-point R3(config-if)# exit R3(config)# router ospf 1 R3(config-router)# network 192.168.3.3 0.0.0.0 area 0 R3(config-router)# end R3# clear ip ospf process yes R3# write