Last Updated on July 31, 2021 by Admin 1
Examine the following diagram:
Which of the following actions will make area 1 a totally stubby area? (Choose all that apply. Each correct answer is part of the solution.)
- execute the area 1 stub no-summary command on RouterA
- execute the area 1 stub no-summary command on RouterB
- execute the area 1 stub command on RouterB
- execute the area 1 stub command on RouterA
- execute the area 0 stub-no summary command on RouterA
- execute the area 0 stub no-summary command on RouterB
- execute the area 0 stub command on RouterB
- execute the area 0 stub command on RouterA
Explanation:
You should execute the area 1 stub no-summary command on RouterA and the area 1 stub command on RouterB. A totally stubby area is one that only keeps local area routes in the link-state database (LSDB), plus a default route that leads out of the area. To make an area totally stubby, the area border router (ABR) should be configured with the area 1 stub no-summary command and all other area routers should be configured with the area 1 stub command. The diagram in the scenario indicates that RouterA is the border router.You should not run any of the commands that refer to area 0. This would affect a different area than the requirement stated in the scenario.None of the other combinations of actions will create a totally stubby area.If you run the area 1 stub command on both RouterA and RouterB, it will create a stub area. A stub area differs from a totally stubby area in that a stub area will allow updates about areas in the same OSPF domain.
You should execute the area 1 stub no-summary command on RouterA and the area 1 stub command on RouterB. A totally stubby area is one that only keeps local area routes in the link-state database (LSDB), plus a default route that leads out of the area. To make an area totally stubby, the area border router (ABR) should be configured with the area 1 stub no-summary command and all other area routers should be configured with the area 1 stub command. The diagram in the scenario indicates that RouterA is the border router.You should not run any of the commands that refer to area 0. This would affect a different area than the requirement stated in the scenario.None of the other combinations of actions will create a totally stubby area.If you run the area 1 stub command on both RouterA and RouterB, it will create a stub area. A stub area differs from a totally stubby area in that a stub area will allow updates about areas in the same OSPF domain.
Objective:
Layer 3 Technologies
Sub-Objective:
Configure and verify network types, area types, and router types
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