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Refer to the exhibit.



An administrator is troubleshooting Internet access issues on a customer’s network. After applying this ISIS configuration to R1, the administrator notices that it fails to redistribute the default route into IS-IS. After checking the connectivity between the ISIS router and the ISP router the engineer confirmed there is Layer 3 connectivity between them. Which action should be taken to correct the problem?

  1. Configure R1 as a Layer 1 router
  2. Add the default-information originate command to the configuration
  3. Configure the default route under any routing protocol other than IS-IS
  4. Associate the default route with a VRF

Answer(s): B



Refer to the exhibit. A network engineer applied configuration on R5 to summarize all OSPF routes, but R4 is still receiving specific routes from R5. The engineer has confirmed that both R5 and R4 routers are configured with correct summarization configuration, but R5 is not sending the summary routes. What action must the engineer take to fix the problem?

  1. Remove summarization configuration on R5 and configure it on R4
  2. Clear link-state database on both R4 and R5 routers for summarization to work
  3. Configure a sham link between R4 and R5 to support summarization within Area 2
  4. Move R4 and R5 in separate areas as now they maintain the same link-state database

Answer(s): D



Refer to the exhibit. Routers within the cluster are not receiving the desired prefixes. What must be done to fix the issue?

  1. Clients in that cluster must have full mesh connectivity between eBGP peers
  2. No client-to-client reflection must be enabled
  3. Clients in that cluster must have full mesh connectivity between iBGP peers
  4. No client-to-client must be disabled

Answer(s): C



Refer to the exhibit.


An engineer applied the summarization configuration on R1 for four networks (192.168.20.0/24 to 192.168.23.0/24) in area 1 and eight networks (192.168.32.0/24 to 192.168.39.0/24) in area 2 to stop the flooding of all the customer routes. While checking the routing table of R2, the engineer noticed that R1 is still sending only specific routes to R2. Which configuration should the engineer apply on R1 to summarize routes?





Answer(s): D






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