Metrics and Route Summarization JN0-664 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   An OSPF network has two parallel links between routers R1 and R2: a 1 Gbps link and a 10 Gbps link. The network engineer wants OSPF to prefer the 10 Gbps link for traffic from R1 to R2, but the current configuration results in equal-cost load balancing. The engineer wants a solution that is specific to these interfaces and does not affect other links in the network. What should the engineer do?

   • AConfigure the 10 Gbps link as a passive interface.
   • BSet the OSPF priority to 255 on the 10 Gbps interface.
   • CIncrease the OSPF reference bandwidth to 100 Gbps on R1 only.
   • DSet the OSPF cost to 100 on the 1 Gbps interface and 10 on the 10 Gbps interface on both R1 and R2.
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2. 7application · medium

   An enterprise network runs OSPF with a reference bandwidth of 1000 Gbps. The network team is adding a new 400 Gbps backbone link and wants to verify that OSPF is using the correct cost for this interface. Which command would the engineer use to confirm the calculated OSPF cost on the new interface?

   • Ashow interfaces terse ge-0/0/0
   • Bshow ospf interface ge-0/0/0.0
   • Cshow ospf neighbor
   • Dshow route protocol ospf
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4. 8application · medium

   A service provider is deploying a new OSPF area with a mix of 1 Gbps and 10 Gbps links. The network engineer notices that the default OSPF cost for both the 1 Gbps and 10 Gbps interfaces is identical, causing traffic to load-balance across unequal-capacity paths. The engineer wants OSPF to prefer the 10 Gbps link while keeping configuration changes minimal across the network. What should the engineer do?

   • AConfigure the OSPF reference-bandwidth to 100 Gbps on all routers in the area.
   • BChange the OSPF metric-type to external type 2 on the 10 Gbps interface.
   • CIncrease the OSPF hello-interval on the 10 Gbps interface to make it more preferred.
   • DManually set the OSPF cost to 100 on the 1 Gbps interface and 10 on the 10 Gbps interface on the local router only.
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5. 9foundation · easy

   What is a primary benefit of route summarization in OSPF?

   • AIt eliminates the need for OSPF areas.
   • BIt increases the number of routes in the routing table.
   • CIt reduces the size of the Link-State Database (LSDB).
   • DIt increases the OSPF hello timer.
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6. 10application · medium

   An organization is upgrading its OSPF network from 1 Gbps to 10 Gbps core links. The network engineer wants to ensure that OSPF metrics reflect the new link speeds without manually configuring costs on every interface. What is the most efficient approach?

   • AUse OSPF fast-reroute to prefer the 10 Gbps links.
   • BIncrease the OSPF reference bandwidth to 100 Gbps on all routers.
   • CChange the OSPF network type to point-to-point on all core links.
   • DManually set the OSPF cost on each 10 Gbps interface to 1.
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