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Google Professional Cloud Network Engineer Exam - Topic 4 Question 116 Discussion

Your organization recently re-architected your cloud environment to use Network Connectivity Center. However, an error occurred when you tried to add a new VPC named vpc-dev as a spoke. The error indicated that there was an issue with an existing spoke and the IP space of a VPC named vpc-pre-prod. You must complete the migration quickly and efficiently. What should you do?
A) Remove the conflicting VPC spoke for vpc-pre-prod from the set of VPC spokes in Network Connectivity Center. Add the VPC spoke for vpc-dev. Add the previously removed vpc-pre-prod as a VPC spoke.
D) Exclude the conflicting IP range by using the --exclude-export-ranges flag in the hub when attaching the VPC spoke for vpc-dev.
B) Delete the VMs associated with the conflicting subnets, then delete the conflicting subnets in vpc-dev. Recreate the subnets with a new IP range and redeploy the previously deleted VMs in the new subnets. Add the VPC spoke for vpc-dev.
C) Exclude the conflicting IP range by using the --exclude-export-ranges flag when creating the VPC spoke for vpc-dev.

Google Professional Cloud Network Engineer Exam - Topic 4 Question 116 Discussion

Actual exam question for Google's Professional Cloud Network Engineer exam
Question #: 116
Topic #: 4
[All Professional Cloud Network Engineer Questions]

Your organization recently re-architected your cloud environment to use Network Connectivity Center. However, an error occurred when you tried to add a new VPC named vpc-dev as a spoke. The error indicated that there was an issue with an existing spoke and the IP space of a VPC named vpc-pre-prod. You must complete the migration quickly and efficiently. What should you do?

Show Suggested Answer Hide Answer
Suggested Answer: A

The most efficient way to resolve the conflict is to temporarily remove the conflicting vpc-pre-prod spoke, add the vpc-dev spoke, and then re-add vpc-pre-prod. This ensures that the migration happens quickly without the need to change IP ranges or delete resources.


by Ivette at Jan 22, 2026, 04:32 PM

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Julene
2 months ago
I’d also consider reaching out for support if needed.
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Madelyn
2 months ago
Maybe reconfigure vpc-pre-prod to avoid conflicts?
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Edgar
2 months ago
Agreed. Overlapping IPs could be the issue.
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Celestine
4 months ago
This is tricky. I’d check the IP ranges first.
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Joaquin
4 months ago
I disagree, it could also be a problem with the NCC itself, not just the VPCs.
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Chauncey
4 months ago
Wow, I didn't think IP conflicts would be such a big deal in the cloud!
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Chanel
4 months ago
Are you sure it's not a misconfiguration in the NCC settings?
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Daren
4 months ago
Totally agree, overlapping IPs can cause major issues!
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Van
4 months ago
Check the IP ranges of vpc-pre-prod, they might be overlapping.
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Felix
5 months ago
Ah, the joys of cloud migration. I'd suggest reaching out to the cloud provider's support team - they might have a quick fix for this.
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Skye
5 months ago
Haha, welcome to the world of cloud networking! I'd say check the VPC configurations, adjust the IP ranges, and pray it works.
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Margret
5 months ago
Hmm, this is a tricky one. Maybe try creating a new VPC with a different IP range and migrating the resources over?
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Lorean
5 months ago
Sounds like a classic VPC peering issue. I'd try to identify the overlapping IP ranges and update the routing tables accordingly.
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Arlene
5 months ago
The issue is likely due to an IP space conflict between vpc-dev and vpc-pre-prod. I'd recommend reviewing the IP ranges and adjusting them to ensure there's no overlap.
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Buck
5 months ago
I feel like we might need to look into the routing configurations as well. There could be something in the routes that’s causing the error with vpc-dev.
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Alesia
6 months ago
I'm not entirely sure, but could it be possible that vpc-pre-prod is still connected to another service that's causing the conflict?
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Micheline
6 months ago
I think I saw a similar question in our practice exams where we had to resolve overlapping IP ranges. Should we consider renaming or changing the CIDR of vpc-pre-prod?
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Marge
7 months ago
I remember something about IP address conflicts causing issues when adding spokes. Maybe we need to check the CIDR blocks for both VPCs?
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Tracey
7 months ago
I'm a bit confused by the technical details here, but I'll do my best to work through this step-by-step. First, I'll need to gather more information about the existing vpc-pre-prod VPC and the issue with the IP space. Then, I'll see if I can come up with a solution to resolve the conflict and complete the migration.
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Mozelle
7 months ago
This seems straightforward enough. I'll start by checking the IP space of the vpc-pre-prod VPC and see if I can find a way to adjust it to avoid the conflict. If that's not possible, I may need to consider other options like modifying the vpc-dev VPC or exploring alternative network configurations.
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Francine
7 months ago
Okay, so it seems like there's a problem with the IP space of the vpc-pre-prod VPC that's causing issues when trying to add the new vpc-dev VPC as a spoke. I'll need to investigate the IP ranges of both VPCs and see if I can find a way to resolve the conflict.
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Dorothy
7 months ago
Hmm, this looks like a tricky one. I'll need to carefully review the requirements and see if I can identify the root cause of the issue with the existing spoke and IP space conflict.
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Leonardo
1 month ago
Maybe we need to reconfigure the vpc-pre-prod settings first?
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Britt
1 month ago
Definitely! Overlapping IPs can cause major issues.
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Karan
1 month ago
I think checking the IP ranges is a good start.
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