nerdexam
Google

PROFESSIONAL-CLOUD-NETWORK-ENGINEER · Question #131

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…

The correct answer is A. Configure a /28 primary IP address range for the node IP addresses. To optimally design the IP schema for GKE, ensure that the primary IP address range for nodes is sufficient to accommodate scaling requirements.

Submitted by mateo_ar· Apr 18, 2026Designing, planning, and prototyping a Google Cloud network

Question

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?

Options

  • AConfigure a /28 primary IP address range for the node IP addresses.
  • BConfigure a /28 primary IP address range for the node IP addresses.
  • CConfigure a /28 primary IP address range for the node IP addresses.
  • DConfigure a /28 primary IP address range for the node IP addresses.

How the community answered

(42 responses)
  • A
    79% (33)
  • B
    12% (5)
  • C
    2% (1)
  • D
    7% (3)

Why each option

To optimally design the IP schema for GKE, ensure that the primary IP address range for nodes is sufficient to accommodate scaling requirements.

AConfigure a /28 primary IP address range for the node IP addresses.Correct

A /28 primary IP address range provides 16 IP addresses (14 usable hosts), which is sufficient to accommodate up to 10 nodes for the GKE cluster, satisfying the scaling requirement from 5 to 10 nodes. While other IP ranges are needed for pods and services, the /28 range specifically addresses the node IP allocation optimally for the given node count.

BConfigure a /28 primary IP address range for the node IP addresses.

This choice is a duplicate of A.

CConfigure a /28 primary IP address range for the node IP addresses.

This choice is a duplicate of A.

DConfigure a /28 primary IP address range for the node IP addresses.

This choice is a duplicate of A.

Concept tested: GKE IP address planning (node range)

Source: https://cloud.google.com/kubernetes-engine/docs/how-to/flexible-pod-cidr#sizing_pod_ip_ranges

Topics

#GKE IP Addressing#Subnetting#Network Design#Cluster Sizing

Community Discussion

No community discussion yet for this question.

Sign up to join the discussion
Full PROFESSIONAL-CLOUD-NETWORK-ENGINEER Practice