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Google Professional Cloud Network Engineer Exam - Topic 3 Question 118 Discussion

You need to configure a Google Kubernetes Engine (GKE) cluster. The initial deployment should have 5 nodes with the potential to scale to 10 nodes. The maximum number of Pods per node is 8. The number of services could grow from 100 to up to 1024. How should you design the IP schema to optimally meet this requirement?
A) Configure a /28 primary IP address range for the node IP addresses. Configure a (25 secondary IP range for the Pods. Configure a /22 secondary IP range for the Services.
B) Configure a /28 primary IP address range for the node IP addresses. Configure a /25 secondary IP range for the Pods. Configure a /21 secondary IP range for the Services.
C) Configure a /28 primary IP address range for the node IP addresses. Configure a /28 secondary IP range for the Pods. Configure a /21 secondary IP range for the Services.
D) Configure a /28 primary IP address range for the node IP addresses. Configure a /24 secondary IP range for the Pads. Configure a /22 secondary IP range for the Services.

Google Professional Cloud Network Engineer Exam - Topic 3 Question 118 Discussion

Actual exam question for Google's Professional Cloud Network Engineer exam
Question #: 118
Topic #: 3
[All Professional Cloud Network Engineer Questions]

You need to configure a Google Kubernetes Engine (GKE) cluster. The initial deployment should have 5 nodes with the potential to scale to 10 nodes. The maximum number of Pods per node is 8. The number of services could grow from 100 to up to 1024. How should you design the IP schema to optimally meet this requirement?

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Suggested Answer: A

by Dell at Mar 30, 2026, 04:35 PM

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Jamal
27 minutes ago
Option D looks tempting too, but the Pods range feels too tight.
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Rasheeda
5 days ago
I agree, B seems balanced. The /21 for Services is smart.
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Johanna
10 days ago
I think option B is the best choice. It allows for enough Pods and Services.
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Cory
16 days ago
C doesn't seem to provide enough IPs for the Pods.
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Daniel
21 days ago
Totally agree with B, it gives enough room for growth!
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Ma
26 days ago
Wait, why would we use a /28 for Pods? That seems off.
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Lorriane
2 months ago
I think A is too restrictive for the services.
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Aliza
3 months ago
Option B seems solid for scaling the services.
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Theola
3 months ago
I remember that the Services need more IPs as they can grow significantly, so I think a /21 for Services makes sense, but I’m not sure about the Pods' range again.
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Tamera
3 months ago
I’m leaning towards option B because it seems to provide enough IPs for scaling, but I’m a bit confused about the Pods' range. Shouldn't it be larger?
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Roosevelt
4 months ago
I think we practiced a similar question where we had to calculate IP ranges based on Pods and Services. I feel like a /25 for Pods might be too much, but I can't recall the exact numbers.
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Roosevelt
4 months ago
I remember that the primary IP range for nodes should be small since we only need 5 nodes initially, but I'm not sure about the secondary ranges for Pods and Services.
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