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Cisco 300-510 Exam - Topic 3 Question 109 Discussion

Refer to the exhibit.Refer to the exhibit Networks 172.16.31.0/24 and 172 16 30.0/24 are advertised in area 34. and network 172.22 10.0/24 is advertised in area 0. A recent security review discovered that users connected to routers R1 and R2 have been making unauthorized access to an application running on network 172 16 31 0/24 An engineer determined that routers R1 and R2 are receiving updates for network 17 16 31 0/24 Which action resolves the issue?
D) Apply route filtering on router R4 only.
A) Apply route filtering on routers R3 and R4.
B) Apply route filtering on router R3 only.
C) Apply route filtering on routers RI and R2

Cisco 300-510 Exam - Topic 3 Question 109 Discussion

Actual exam question for Cisco's 300-510 exam
Question #: 109
Topic #: 3
[All 300-510 Questions]

Refer to the exhibit.

Refer to the exhibit Networks 172.16.31.0/24 and 172 16 30.0/24 are advertised in area 34. and network 172.22 10.0/24 is advertised in area 0. A recent security review discovered that users connected to routers R1 and R2 have been making unauthorized access to an application running on network 172 16 31 0/24 An engineer determined that routers R1 and R2 are receiving updates for network 17 16 31 0/24 Which action resolves the issue?

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Suggested Answer: D

by Tonette at Apr 30, 2025, 06:24 AM

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Marya
8 months ago
Wait, why only R3? That seems risky.
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Shakira
9 months ago
Definitely agree, R1 and R2 need that filtering!
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Iluminada
9 months ago
I think route filtering on R3 and R4 is the way to go.
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Cyndy
9 months ago
Applying filtering on R4 alone won't solve the issue.
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Shay
9 months ago
I’m surprised this wasn’t caught earlier!
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Sherita
9 months ago
I’m a bit confused about whether R4 alone would be enough. I think I need to double-check how route updates work in this scenario.
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Rana
10 months ago
I feel like I read that filtering should be done on the routers directly connected to the affected networks, so maybe R1 and R2?
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Novella
10 months ago
This question seems similar to one we practiced where we had to filter routes to prevent unauthorized access. I think applying it on R3 might be the right move.
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Fatima
10 months ago
I remember something about route filtering, but I'm not sure if it should be applied to both R3 and R4 or just one of them.
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Chuck
10 months ago
Ah, I see. The key here is to identify the source of the unauthorized access and apply the filtering at the appropriate routers. I'll need to carefully consider the options and make sure I understand the implications of each before selecting the best answer.
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Fabiola
11 months ago
Based on the information provided, I think the best solution is to apply route filtering on routers R3 and R4. That way, we can prevent the unauthorized access from the users connected to R1 and R2 without disrupting the legitimate routing updates.
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Yolando
11 months ago
I'm a bit confused here. The question mentions networks in different areas, so I'll need to understand the OSPF area structure and how that affects the routing updates. Maybe I should start by drawing out the network diagram to visualize the connections.
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Winifred
11 months ago
Okay, let's see. The issue is with unauthorized access to the 172.16.31.0/24 network, and the routers R1 and R2 are receiving updates for that network. I think the solution might involve applying route filtering on those routers.
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Gerardo
11 months ago
Hmm, this looks like a tricky one. I'll need to carefully analyze the network topology and routing information to determine the best approach.
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Kanisha
1 year ago
Haha, I bet the engineer who figured this out is feeling pretty proud of themselves. Way to go, detective!
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Elroy
1 year ago
B) That should prevent unauthorized access to the application.
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Edward
1 year ago
A) Apply route filtering on routers R3 and R4.
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Rozella
1 year ago
I believe option C) Apply route filtering on routers R1 and R2 could also work to resolve the issue.
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Lamonica
1 year ago
Wait, wait, wait... Isn't this the same problem as the one with the 'unauthorized access' issue in the IT department last year? I swear I've seen this before!
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Alease
1 year ago
Agreed, let's implement the route filtering on those routers.
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Cassandra
1 year ago
That makes sense, we need to restrict the updates they are receiving.
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Elvera
1 year ago
I think we need to apply route filtering on routers R1 and R2 to resolve this.
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Tamie
1 year ago
Yes, it does seem similar to the issue we had last year.
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Marnie
1 year ago
Hmm, I thought the solution would be to apply route filtering on all the routers, just to be safe. Better safe than sorry, right?
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Madonna
1 year ago
But the correct action is to apply route filtering on routers R3 and R4.
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Roxane
1 year ago
I agree, better to be safe than sorry.
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Carman
1 year ago
I think applying route filtering on all routers would be a good idea.
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Arlene
1 year ago
I agree with Glynda, applying route filtering on both routers R3 and R4 makes sense.
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Glynda
1 year ago
I think the answer is A) Apply route filtering on routers R3 and R4.
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Aron
1 year ago
The correct answer is C. Apply route filtering on routers R1 and R2 to prevent unauthorized access to the 172.16.31.0/24 network.
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Bok
1 year ago
Let's make sure to implement it as soon as possible.
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Adell
1 year ago
Agreed, that will prevent unauthorized access to the network.
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Helene
1 year ago
We need to apply route filtering on routers R1 and R2 to fix the issue.
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