Configure or Monitor Single-Area or Multi-Area OSPF with Routing Policy JN0-664 Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   In a multi-area OSPF design, which area must be present to ensure that all areas can exchange routing information?

   • AA totally stubby area
   • BThe backbone area (area 0)
   • CA not-so-stubby area (NSSA)
   • DA stub area
   Reveal Solution Discussion Select an answer first
2. 17expert · hard

   A network has OSPF area 0, area 1, and area 2. Area 2 has no direct physical connection to area 0; it is connected only to area 1. The engineer needs area 2 to participate in OSPF as a normal area. Which configuration is required on the routers?

   • AConfigure a virtual link between a router in area 2 and a router in area 0, with the transit area set to area 1.
   • BConfigure a static route from area 2 to area 0 through area 1.
   • CConfigure area 2 as a stub area and connect it directly to area 0.
   • DRedistribute OSPF routes from area 2 into area 1 using a routing policy.
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   Which OSPF area type does not allow Type 5 external LSAs but does allow Type 3 summary LSAs?

   • ANot-so-stubby area (NSSA)
   • BStub area
   • CBackbone area
   • DTotally stubby area
   Reveal Solution Discussion Select an answer first
5. 19foundation · easy

   What is the purpose of OSPF authentication?

   • ATo speed up OSPF convergence.
   • BTo encrypt the OSPF routing updates.
   • CTo reduce the number of OSPF LSAs.
   • DTo prevent unauthorized routers from participating in OSPF routing.
   Reveal Solution Discussion Select an answer first
6. 20expert · hard

   A regional provider has OSPF area 0, area 1, and area 2. Area 2 is connected to area 0 through a router in area 1, but the link between area 2 and area 1 is flapping. The network architect wants area 2 to remain reachable even if that link goes down, without redesigning the physical topology. Which action satisfies this requirement?

   • AIncrease the OSPF dead timer on the area 2 interfaces.
   • BChange area 2 to a stub area so it does not need the backbone.
   • CConfigure a virtual link between a router in area 2 and a router in area 0, transiting area 1.
   • DRedistribute OSPF routes into static routes on the area 1 router.
   Reveal Solution Discussion Select an answer first