What is the role of the Operator Lifecycle Manager (OLM) in Kubernetes?

To manage the lifecycle of operators, including installation, upgrades, and deletion.

To monitor the health of all pods in the cluster.

To provide a command-line interface for creating custom resources.

To replace the kube-apiserver for custom resource requests.

A company runs a stateful application that requires complex initialization, backups, and upgrades. They want to automate these operational tasks using Kubernetes-native patterns. What is the best approach?

Create a Helm chart that includes all operational steps as hooks.

Write a set of CronJobs that perform the tasks on a schedule.

Use a StatefulSet with initContainers to handle initialization and upgrades.

Develop an operator that encodes the operational knowledge into a controller.

How do you typically configure an operator that uses custom resources?

By changing the kube-apiserver flags.

By modifying the custom resource instances that the operator manages.

By editing the operator's Deployment manifest directly.

A team has created a CRD for 'Website' resources. They want to verify that the CRD is available and that the API server can serve requests for the new resource type. Which command should they use?

kubectl get crd websites.example.com

kubectl describe crd websites.example.com

kubectl api-resources | grep website

A team wants to install the 'Prometheus' operator on a cluster that has OLM enabled. They have created a Subscription in the 'operators' namespace. What must they do next to ensure the operator is ready to use?

Apply a ClusterServiceVersion (CSV) directly to the cluster.

Create an OperatorGroup that targets the namespace where the operator will watch for resources.

Manually create the operator's Deployment and ServiceAccount.

Wait for the operator's Pod to become ready, then create a custom resource to trigger reconciliation.

Certified Kubernetes Administrator (CKA)

Domain 4Objective 8

Understand CRDs, Install and Configure Operators CKA Practice Questions (Page 3)

Part of the Cluster Architecture, Installation and Configuration domain, which accounts for 25% of the CKA exam. Linux Foundation does not publish an official question count, but from its 120-minute exam (~50–80 total, ~13–20 in this domain), expect 2–3 from this objective — we provide 27 practice questions to prepare you well beyond it. (estimate)

27questions here

6free pages

7concepts

25%of the exam

Questions 11–15

11foundation · easy
What is the role of the Operator Lifecycle Manager (OLM) in Kubernetes?
Select an answer first
12application · medium
A company runs a stateful application that requires complex initialization, backups, and upgrades. They want to automate these operational tasks using Kubernetes-native patterns. What is the best approach?
Select an answer first
13foundation · easy
How do you typically configure an operator that uses custom resources?
Select an answer first
14application · medium
A team has created a CRD for 'Website' resources. They want to verify that the CRD is available and that the API server can serve requests for the new resource type. Which command should they use?
Select an answer first
15application · medium
A team wants to install the 'Prometheus' operator on a cluster that has OLM enabled. They have created a Subscription in the 'operators' namespace. What must they do next to ensure the operator is ready to use?
Select an answer first

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