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Google Professional Cloud Network Engineer Exam - Topic 4 Question 107 Discussion

Actual exam question for Google's Professional Cloud Network Engineer exam
Question #: 107
Topic #: 4
[All Professional Cloud Network Engineer Questions]

You converted an auto mode VPC network to custom mode. Since the conversion, some of your Cloud Deployment Manager templates are no longer working. You want to resolve the problem.

What should you do?

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Suggested Answer: D

by Oliva at Jun 12, 2025, 04:24 PM

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Bernardo
2 months ago
Definitely not A, that won't fix the template issue.
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Joanna
2 months ago
Wait, are you saying the templates just break like that?
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Leonida
3 months ago
I think option D is the way to go!
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Tula
3 months ago
I had a similar issue, and D worked for me!
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Brittni
3 months ago
Sounds like you need to update the templates for custom mode.
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Jackie
3 months ago
I feel like explicitly referencing the custom networks in the templates is the right move. That seems to align with what we learned.
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Elvera
4 months ago
I vaguely recall that IAM roles might be involved, but I don't think that's the main issue here. Maybe it's more about the templates?
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Fannie
4 months ago
I think we practiced a similar question where we had to adjust firewall settings. Could it be option B?
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Keva
4 months ago
I remember something about needing to update the templates when switching to custom mode, but I'm not sure if it's option D or something else.
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Arlette
4 months ago
I'm a little confused on this one. Is the problem that the Deployment Manager service account doesn't have the right permissions to access the custom mode network? If so, then option A might be the way to go. I'll need to double-check the details to be sure.
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Hollis
4 months ago
Okay, I've got this. The issue is that the Deployment Manager templates were written for the auto mode network, and now that the network is in custom mode, the templates need to be updated to work with the custom mode. Option D looks like the right answer - we need to explicitly reference the custom mode networks in the templates.
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Bambi
5 months ago
Hmm, this is a tricky one. I'm not super familiar with the details of VPC network modes and how they interact with Deployment Manager. I'll need to do some research to make sure I understand the concepts before trying to answer.
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Maurine
5 months ago
I think the key here is to understand the difference between auto mode and custom mode VPC networks, and how that might impact the Deployment Manager templates. I'll need to carefully review the options and think through the implications of each.
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Paris
8 months ago
I'm not sure. Maybe we should also explicitly reference the custom mode networks in the Deployment Manager templates.
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Pa
8 months ago
I'm just gonna go with C and hope for the best. Throwing everything at the Cloud Armor whitelist can't hurt, right? *laughs*
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Brock
7 months ago
Lavonna: Sounds like a plan. Let's give it a go.
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Lavonna
7 months ago
User 2: Yeah, I agree. Let's try both and see if it helps.
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Temeka
7 months ago
User 1: I think C could work, but maybe D is worth a shot too.
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Verdell
8 months ago
I agree with Susy. That seems like the most logical solution.
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Craig
8 months ago
D all the way! I mean, if you converted to custom mode, you gotta update those templates, right? Duh.
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Lucina
7 months ago
Definitely. It's important to make sure the templates are updated after converting to custom mode.
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Van
7 months ago
Yeah, I agree. Updating the Deployment Manager templates to explicitly reference the custom mode networks should fix the issue.
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Veronika
8 months ago
I think D is the way to go. You need to update those templates to reference the custom mode networks.
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Susy
8 months ago
I think we should update the VPC firewall to allow Cloud Deployment Manager access.
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Susana
8 months ago
Hmm, I'm leaning towards A. Gotta make sure that API service account has the right permissions, you know?
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Antione
8 months ago
Oh man, this one's tricky. I'd go with B and update the VPC firewall. That should do the trick.
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Lucia
7 months ago
User2: Yeah, that sounds like the best solution.
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Denny
8 months ago
User1: I think we should update the VPC firewall.
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Ressie
8 months ago
I think the answer is D. You need to explicitly reference the custom mode networks in the Deployment Manager templates to get them working again.
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Vallie
7 months ago
Yes, updating the VPC firewall to allow access for the Deployment Manager could also help resolve the issue.
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Nobuko
7 months ago
Should we also consider updating the VPC firewall to allow access for the Deployment Manager?
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Lino
7 months ago
That makes sense. It's important to update the templates to reflect the changes in the network mode.
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Tegan
8 months ago
I think the answer is D. You need to explicitly reference the custom mode networks in the Deployment Manager templates to get them working again.
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