Exam N10-008 topic 1 question 522 discussion

Actual exam question from CompTIA's N10-008

Question #: 522
Topic #: 1

A network administrator is configuring a static DSL connection on the perimeter router to use a backup route to the fiber connection using OSPF routing. The administrator notices all traffic is going over the DSL connection and both links are working. Which of the following should the administrator do to adjust the routing settings for the fiber connection to be used by the router?

A. Add the DSL connection to the neighbor table for OSPF protocol
B. Change the routing protocol to EIGRP for the fiber connection
C. Increase the administrative distance of the DSL connection
D. Create a separate VLAN for the DSL connection

Show Suggested Answer

Suggested Answer: C 🗳️

by 1stAid at April 22, 2023, 4:36 a.m.

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PaytoPlay

Highly Voted 8 months ago

Selected Answer: C

Since the DSL connection was configured as Static it would be given an AD of 1. The OSPF fiber connection would have automatically been assigned an AD of 110 being OSPF. So yes you would have to increase the AD distance of the static DSL route in order for the best path to be the fiber OSPF.

upvoted 12 times

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BayOne

Highly Voted 8 months ago

Selected Answer: C

Administrative distance is a metric used by routers to determine the preference of a route. The lower the administrative distance, the higher the preference. By increasing the administrative distance of the DSL connection, the router will prefer the fiber connection since it has a lower administrative distance.

upvoted 8 times

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Cannnon

Most Recent 8 months ago

Selected Answer: C

C:Increase the administrative distance of the DSL connection

upvoted 3 times

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1stAid

8 months, 1 week ago

Selected Answer: A

A. Answer C just doesn't make sense.

upvoted 2 times

Molongo

8 months ago

Would you mind elaborating?

upvoted 2 times

1stAid

8 months ago

I think it's just a bad question I can't wrap my head around. 1. DSL says static connection but doesn't really say a static route specifically. I guess this is where Im getting confused. 2. Fiber is using OSPF routing. 3. If DSL is setup OSPF then network will choose the best path to take with less network traffic. Since it's a backup route, I would want the same routing protocol and let the network decide. 4. I guess if DSL is a static route then yes it'll take that route.

upvoted 1 times

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1stAid

8 months ago

Both links are working so no issue with AD. Admin wants a backup, fiber is using ospf, DSL needs to be added to OSPF neighbor? Right? OSPF auto chooses best path to take, but if DSL is not an OSPF neighbor how will it know to take fiber path? IDK..

upvoted 1 times

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