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 (61-65)

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

QUESTION NO: 61
One of the most important characteristics of OSPF is Multiple areas. Which statement best describes why this feature is such an important enhancement to earlier routing protocols?
A. The network domain, when divided into areas, allows for the use of both IANA classful addressing and private addressing.
B. The use of multiple areas allows for the use of prioritization.
C. All computation is kept within the area, with minimum communication between the areas, allowing the network to scale to larger sizes.
D. It is easier to implement security.
Answer: C

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642-902 Q&A – Implement a multi-area OSPF Network (56-60)

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

QUESTION NO: 56
When learning a new route, if a LSA received is not found in the topological database, what will an internal OSPF router do?
A. The sequence numbers are checked, and if the LSA is valid it is entered into the topology database.
B. The LSA is placed in the topological database and an acknowledgement is sent to the transmitting router.
C. The LSA is dropped and a message is sent to the transmitting router.
D. The LSA is flooded immediately out of all the OSPF interfaces, except the interface from which the LSA was received.
Answer: D

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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 (46-50)

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

QUESTION NO: 46
Refer to the exhibit. ROUTE.com is planning to implement a secure OSPF network to support traffic between clients on the 172.16.10.0/24 network and the file server on the 172.16.20./24 network. You have been asked to review the implementation and verification plans for this OSPF project.
Which statement about the plan is true? Select the best response.

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642-902 Q&A – Implement a multi-area OSPF Network (41-45)

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

QUESTION NO: 41
What is the best order for choosing the Router-ID in ospf?
A. high loopback interface address, high physical interface address, Router ID command
B. high loopback interface address, Router ID command, high physical interface address
C. Router ID command, high loopback interface address, high physical interface address
D. Router ID command, high physical interface address, high loopback interface address
E. high physical interface address, high loopback interface address, Router ID command
Answer: C

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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 (31-35)

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

QUESTION NO: 31
You are troubleshooting an OSPF problem where external routes are not showing up in the OSPF database. Which two options are valid checks that should be performed first to verify proper OSPF operation? (Choose two.)
A. Are the ASBRs trying to redistribute the external routes into a totally stubby area?
B. Are the ABRs configured with stubby areas?
C. Is the subnets keyword being used with the redistribution command?
D. Is backbone area (area 0) contiguous?
E. Is the CPU utilization of the routers high?
Answer: AC

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