Scaling — Certified Kubernetes App Developer (CKAD) Practice Questions

Scaling in Kubernetes means adjusting the number of Pod replicas running for a Deployment, ReplicaSet, or StatefulSet to match demand or ensure availability. The CKAD exam covers both manual scaling with kubectl scale and the configuration of a HorizontalPodAutoscaler, which automatically adjusts replica counts based on CPU or custom metrics. You are expected to know how to increase or decrease replicas imperatively and declaratively, and to understand that scaling a Deployment does not change its Pod template. This topic intersects with resource requests, because HPA requires resource requests to be defined before it can compute utilization percentages.

Free questions on scaling

What command scales a Deployment to 5 replicas?
Free question · easy · full answer + explanation

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