DR/BDR

642-902 Q&A – Implement a multi-area OSPF Network (71-76)

Section 2 – Implement a multi-area OSPF Network, given a network design and a set of requirements

QUESTION NO: 71
By default, which statement is correct regarding the redistribution of routes from other routing protocols into OSPF? Select the best response.
A. They will appear in the OSPF routing table as type E1 routes.
B. They will appear in the OSPF routing table as type E2 routes.
C. Summarized routes are not accepted.
D. All imported routes will be automatically summarized when possible.
E. Only routes with lower administrative distances will be imported.
Answer: B

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642-902 Q&A – Implement a multi-area OSPF Network (51-55)

Section 2 – Implement a multi-area OSPF Network, given a network design and a set of requirements

QUESTION NO: 51
A network administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true? (Choose two.)
A. DR and BDR elections will occur.
B. DR and BDR elections will not occur.
C. All routers must be configured in a fully meshed topology with all other routers.
D. The neighbor command is required to build adjacencies.
E. Interfaces will automatically detect and build adjacencies with neighbor routers.
Answer: AD

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642-902 Q&A – Implement a multi-area OSPF Network (36-40)

Section 2 – Implement a multi-area OSPF Network, given a network design and a set of requirements

QUESTION NO: 36
A network administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true? (Choose two.)
A. Interfaces will automatically detect and build adjacencies with neighbor routers.
B. DR and BDR elections will not occur.
C. DR and BDR elections will occur.
D. The neighbor command is required to build adjacencies.
E. All routers must be configured in a fully meshed topology with all other routers.
Answer: C,D

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642-902 Q&A – Implement a multi-area OSPF Network (11-15)

Section 2 – Implement a multi-area OSPF Network, given a network design and a set of requirements

QUESTION NO: 11
Given the following partial configuration for Router A:

interface serial 0
ip address 10.1.1.1 255.255.255.0
ip ospf network point-to-multipoint
router ospf 7
network 10.1.1.0 0.0.0.255 area 0

Which two statements are correct? (Choose two.)

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642-902 Q&A – Implement a multi-area OSPF Network (6-10)

Section 2 – Implement a multi-area OSPF Network, given a network design and a set of requirements

QUESTION NO: 6
Which two statements about route redistribution when implementing OSPF are true? Select 2 response(s).
A. Routes learned using any IP routing protocol can only be redistributed into non IP routing protocols.
B. OSPF can import routes learned using EIGRP, RIP, and IS-IS.
C. OSPF routes cannot be exported into EIGRP, RIP, and IS-IS.
D. At the interdomain level, OSPF cannot import routes learned using BGP.
E. OSPF routes can be exported into BGP.
Answer: B,E

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642-902 Q&A – Implement a multi-area OSPF Network (1-5)

Section 2 – Implement a multi-area OSPF Network, given a network design and a set of requirements

QUESTION NO: 1
Refer to the exhibit. A network administrator wants to reduce the number of OSPF routes advertised from Area 1 into Area 2. As the router configuration specialist, what two things would you do to accomplish this goal? (Choose two.)

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