Juniper JN0-105 Exam - Topic 1 Question 24 Discussion

Actual exam question for Juniper's JN0-105 exam

Question #: 24
Topic #: 1

Click the Exhibit button.

Referring to the exhibit, OSPF has three export policies that match different static route prefixes. The 10.10.10.0/24 static route does not match any terms in the policyl routing policy.

What happens next in this scenario?

AThe static route is evaluated by the poiicy3 routing policy.

BThe static route is evaluated by the poiicy2 routing policy.

CThe static route is rejected by the default routing policy.

DThe static route is rejected by the policyl routing policy.

Show Suggested Answer

Suggested Answer: B

In Junos, when multiple policies are applied to a routing protocol for route export, the routes are evaluated in the order in which the policies are listed. In the exhibit, the OSPF configuration has three export policies listed: policy1, policy2, and policy3. The static route 10.10.10.0/24 does not match any terms in policy1; therefore, it is not rejected by policy1 but is instead passed on to the next policy in the sequence, which is policy2.

If the static route matches a term in policy2 that permits the route, it will be exported into OSPF. If it does not match in policy2, it will then be evaluated by policy3. If there is no match in policy3 as well, and assuming there are no more policies listed, the route would then be subject to the default routing policy behavior, which typically rejects the route unless an explicit accept statement is present in the policies.

by Isidra at Sep 15, 2024, 12:54 AM

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Kerry

3 months ago

Just to clarify, the default policy doesn't come into play here, right?

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Valentine

3 months ago

I think it’s definitely rejected by the policy, so D makes sense.

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Nickolas

3 months ago

Wait, are we sure it won't match anything? Seems odd.

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Kina

4 months ago

Totally agree, D is the right choice here!

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Erick

4 months ago

The static route won't match any terms, so it gets rejected.

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Fanny

4 months ago

I vaguely recall that if a static route doesn't match any terms, it might just get rejected outright. I hope that's not the case here!

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Huey

4 months ago

I’m a bit confused about the order of evaluation. I thought the static route would go through all policies until it finds a match.

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Roosevelt

4 months ago

This kind of question feels familiar; I think I practiced one where a static route was rejected by a default policy. Could that be the case here too?

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Phil

5 months ago

I remember studying OSPF export policies, but I'm not entirely sure how the static routes are evaluated if they don't match.

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Elina

5 months ago

I feel pretty good about this one. The question is clear, and the exhibit provides the necessary information to determine that the static route will be rejected by the default policy since it doesn't match any of the export policies.

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Jonell

5 months ago

Okay, the key here is that the 10.10.10.0/24 static route doesn't match any terms in the policy1 routing policy. Based on that, I think the answer is C - the static route will be rejected by the default routing policy.

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France

5 months ago

Hmm, I'm a bit confused by the different routing policies mentioned. I'll need to make sure I understand how OSPF export policies work before I can confidently answer this.

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Mitzie

5 months ago

This looks like a tricky OSPF routing policy question. I'll need to carefully read through the details and think through the logic step-by-step.

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Erinn

5 months ago

Startup type and logon options don't seem directly related to limiting access. I'll focus on the dependencies and status options to figure this out.

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Leigha

1 year ago

I just hope the exam doesn't have any questions about routing policies that are as confusing as this one. My brain hurts just thinking about it!

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Benton

1 year ago

C seems logical. If the static route doesn't match any of the three export policies, it would be rejected by the default policy. Why make it more complicated than it needs to be?

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Bernardine

1 year ago

Hmm, I'm not sure about this one. Maybe B? The static route could be evaluated by the policy2 routing policy if it doesn't match policy1.

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Ronald

1 year ago

I agree with you, it might be B) The static route is evaluated by the policy2 routing policy.

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Elouise

1 year ago

I'm leaning towards C) The static route is rejected by the default routing policy.

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Pauline

1 year ago

I think it could be A) The static route is evaluated by the policy3 routing policy.

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Caren

1 year ago

Hmm, that's an interesting point. I can see why you think that.

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Princess

1 year ago

I disagree, I believe the static route will be rejected by the default routing policy.

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Wayne

1 year ago

D looks right to me. The static route is rejected by the policy1 routing policy since it doesn't match any of the terms.

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Juan

1 year ago

D) The static route is rejected by the policy1 routing policy.

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Sharika

1 year ago

B) The static route is evaluated by the policy2 routing policy.

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Zona

1 year ago

A) The static route is evaluated by the policy3 routing policy.

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Caren

1 year ago

I think the static route will be evaluated by the policy3 routing policy.

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Cecily

1 year ago

I think the correct answer is C. The static route is rejected by the default routing policy since it doesn't match any terms in the policy1 routing policy.

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