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Google Professional Cloud Network Engineer Exam - Topic 2 Question 51 Discussion

Actual exam question for Google's Professional Cloud Network Engineer exam
Question #: 51
Topic #: 2
[All Professional Cloud Network Engineer Questions]

After a network change window one of your company's applications stops working. The application uses an on-premises database server that no longer receives any traffic from the application. The database server IP address is 10.2.1.25. You examine the change request, and the only change is that 3 additional VPC subnets were created. The new VPC subnets created are 10.1.0.0/16, 10.2.0.0/16, and 10.3.1.0/24/ The on-premises router is advertising 10.0.0.0/8.

What is the most likely cause of this problem?

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Suggested Answer: B

by Sherita at May 28, 2022, 04:14 AM

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Romana
4 months ago
Not sure about that, seems too coincidental with the subnet changes.
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Hermila
4 months ago
Wait, could a firewall rule have been added without us knowing?
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Gracia
4 months ago
I think the on-premises router might not be advertising the right route.
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Meghan
4 months ago
Totally agree, that makes sense!
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Golda
4 months ago
The less specific VPC subnet route is taking priority.
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Alica
5 months ago
I think I read that less specific routes take priority, but I’m not completely confident about how that interacts with the new subnets.
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Marget
5 months ago
I feel like a firewall rule could definitely block traffic, but I don't recall if we covered that in relation to subnet changes.
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Cassi
5 months ago
This seems similar to a practice question we did about VPC routing. I think the on-premises router not advertising the right route could be the problem.
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Della
5 months ago
I remember something about route priority, but I'm not sure if it's the less specific or more specific route that's causing the issue.
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Tamesha
5 months ago
The manifest.mbdb file sounds like it might contain information about the backup, so I'll give that a closer look.
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Jeff
5 months ago
This question seems straightforward, I think the system of record fabric for IT management includes the data objects, their relationships, and inter-dependencies.
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Celeste
5 months ago
I think the key here is understanding what a "line group" is and how distribution algorithms work within that context. I'll need to review my notes on that.
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