PCNE Question 33

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

• Chose A1

  The correct answer is A. Option A allows for optimal address allocation by creating a /25 subnet with secondary ranges of /17 for Pods and /21 for Services. This ensures that even with future growth (100 nodes, 200 Pods per node, and 1500 services), the IP space will be sufficient. By specifying the ranges in a VPC-native cluster with alias IPs, it minimizes address consumption while allowing for scalable growth. This setup meets both the current and future scaling requirements.

• 1

  A - service should be 1500 and /24 for service will not be sufficient.

• Chose A1

  I sometimes struggle to work out CIDR ranges, but in this case I think the answer is pretty clear: - Answers C & D do not offer network topologies at all, so can be immediately dismissed - Answer B suggests pods and service subnets should be the same size, which is never recommended in a GKE cluster, therefore it cannot be a correct answer - This leaves A, which is the only feasible choice