Based on the SPF calculation in the exhibit, what is the shortest path to reach R3 from R1?

A. R2-R3

B. R2-R5-R4

C. R3

D. R2-R4

7 Comments on “Based on the SPF calculation in the exhibit, what is the shortest path to reach R3 from R1?”

usmansays:

correct ans is A

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Rogersays:

C is the right answer as inta-area routes are preferred over inter-area routes. Metric does not count in this case.

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Ehsansays:

According to section 11 of RFC 2328 , the order of preference for OSPF routes is:

intra-area routes, O

interarea routes, O IA

external routes type 1, O E1

external routes type 2, O E2

C is the correct answer.

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dev-nullsays:

for shure loopback of r3 is in area 0
so r1 receives 2 summary lsa’s from 2 abr’s (r2 & r3)
spf counting cost of abr reachibility only
thats why A is correct

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theisgroupsays:

The answer is c because route from r2 -r3 is an intra-area. So the more preferred is to use the inter-area route first even though higher pref

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theisgroupsays:

I think this question is misleading. the question asks the route based on spf calculation which would be r2-r3.
but from a route selection perspective. r1 would use the directly connected interface to r3 because it is directly connected.

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usmansays:correct ans is A

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Rogersays:C is the right answer as inta-area routes are preferred over inter-area routes. Metric does not count in this case.

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Ehsansays:According to section 11 of RFC 2328 , the order of preference for OSPF routes is:

intra-area routes, O

interarea routes, O IA

external routes type 1, O E1

external routes type 2, O E2

C is the correct answer.

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0

dev-nullsays:for shure loopback of r3 is in area 0

so r1 receives 2 summary lsa’s from 2 abr’s (r2 & r3)

spf counting cost of abr reachibility only

thats why A is correct

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theisgroupsays:The answer is c because route from r2 -r3 is an intra-area. So the more preferred is to use the inter-area route first even though higher pref

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theisgroupsays:I think this question is misleading. the question asks the route based on spf calculation which would be r2-r3.

but from a route selection perspective. r1 would use the directly connected interface to r3 because it is directly connected.

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dieselsilvestersays:Correct Answer: C

The JN0-643 Questions and Answers covers all the knowledge points of the actual exam. We update our product frequently so our customer can always have the latest version of Dumps4Download. We provide our customers with excellent customer service of 7×24 hours. We have the most professional team of experts to support our quality grid products. If you still can not make your decision about buying our product, please try our free demo. For More Detail: https://www.dumps4download.com/jn0-643-dumps.html

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