Google Professional Cloud Network Engineer Question 170
Select 3Google Cloud PlatformYou are designing an IP addressing plan for a Google Kubernetes Engine (GKE) cluster in a VPC network. The cluster requires multiple node pools, and each node pool will host workloads with varying scalability needs. Which considerations should you make when defining the IP address ranges for the cluster?
- A
Ensure that each node pool has a unique subnet range to avoid overlapping IPs.
- B
Choose a large enough Pod IP range to accommodate future scaling of workloads.
- C
Assign the same subnet range to all node pools to simplify management.
- D
Ensure the Pod IP range does not overlap with any on-premises or hybrid connectivity networks.
- E
Use the default IP ranges provided by GKE to minimize configuration effort.
Show answer and explanation
Correct answers: A, B, D
Explanation
When designing an IP addressing plan for a GKE cluster, it is important to allocate unique subnet ranges for each node pool to prevent IP address conflicts. Additionally, Pod IP ranges should be large enough to accommodate current and future scaling needs. Overlapping IP ranges between GKE and external networks (on-premises or hybrid) must be avoided to ensure seamless connectivity. Default IP ranges provided by GKE may not always meet these requirements and should be customized for optimal results.
- A. Correct.
Correct: Each node pool should have a unique subnet range to avoid IP conflicts across node pools.
- B. Correct.
Correct: A large enough Pod IP range is critical to handle future scaling and avoid running out of IP addresses for pods.
- C. Incorrect.
Incorrect: Assigning the same subnet range to all node pools can lead to IP conflicts and is not a best practice.
- D. Correct.
Correct: Overlapping IP ranges with on-premises or hybrid networks can cause connectivity issues, so avoiding overlap is essential.
- E. Incorrect.
Incorrect: While using default ranges may save time initially, this approach might not align with scalability, hybrid connectivity, or IP conflict avoidance requirements.