A Deployment has an HPA configured to scale based on CPU utilization. The pods have a CPU request of 500m. The current CPU usage is 800m per pod, and the HPA's target is 80% utilization. The HPA is configured with `minReplicas: 2` and `maxReplicas: 10`. What will the HPA do?

Scale up to the maximum of 10 replicas immediately.

Scale up because the current utilization is 160% of the target.

Do nothing because the HPA only reacts to average utilization across all pods.

Scale down because the current utilization is below the target.

What is the purpose of a PodDisruptionBudget (PDB)?

To scale the number of pods based on resource usage

To define the resource requests and limits for pods

To automatically restart failed pods

To limit the number of pods that can be voluntarily disrupted at a time

A Deployment runs 3 replicas of a critical application. The team plans to perform node maintenance that will require draining one node. They want to ensure that at least 2 replicas remain available during the drain. What should they create?

A liveness probe with a short failure threshold.

A HorizontalPodAutoscaler with `minReplicas: 2`.

A PodDisruptionBudget with `minAvailable: 2`.

A resource request of 2 CPUs on each pod.

Certified Kubernetes Administrator (CKA)

Domain 3Objective 4

Understand the Primitives Used to Create Robust, Self-Healing, Application Deployments CKA Practice Questions (Page 4)

Part of the Workloads and Scheduling domain, which accounts for 15% of the CKA exam. Linux Foundation does not publish an official question count, but from its 120-minute exam (~50–80 total, ~8–12 in this domain), expect 2–2 from this objective — we provide 26 practice questions to prepare you well beyond it. (estimate)

26questions here

6free pages

10concepts

15%of the exam

Questions 16–20

16expert · hard
A Deployment has an HPA configured to scale based on CPU utilization. The pods have a CPU request of 500m. The current CPU usage is 800m per pod, and the HPA's target is 80% utilization. The HPA is configured with `minReplicas: 2` and `maxReplicas: 10`. What will the HPA do?
Select an answer first
17foundation · easy
What is the purpose of a PodDisruptionBudget (PDB)?
Select an answer first
18foundation · easy
Which Kubernetes object is directly responsible for managing the ReplicaSets during a rolling update?
Select an answer first
19application · medium
A Deployment runs 3 replicas of a critical application. The team plans to perform node maintenance that will require draining one node. They want to ensure that at least 2 replicas remain available during the drain. What should they create?
Select an answer first
20foundation · easy
Which probe is most useful for a container that takes a long time to start?
Select an answer first

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Understand the Primitives Used to Create Robust, Self-Healing, Application Deployments CKA Practice Questions (Page 4)

Questions 16–20

A Deployment has an HPA configured to scale based on CPU utilization. The pods have a CPU request of 500m. The current CPU usage is 800m per pod, and the HPA's target is 80% utilization. The HPA is configured with `minReplicas: 2` and `maxReplicas: 10`. What will the HPA do?

What is the purpose of a PodDisruptionBudget (PDB)?

Which Kubernetes object is directly responsible for managing the ReplicaSets during a rolling update?

A Deployment runs 3 replicas of a critical application. The team plans to perform node maintenance that will require draining one node. They want to ensure that at least 2 replicas remain available during the drain. What should they create?

Which probe is most useful for a container that takes a long time to start?

Keep studying — Workloads and Scheduling