An operator installed via OLM is running in the 'operators' namespace. The team wants to upgrade the operator to a newer version that is available in the same catalog. What is the correct way to trigger the upgrade?

Scale down the operator's Deployment and update its image to the new version.

Create a new Subscription for the same operator with the new version.

Update the Subscription's 'channel' field to the channel that contains the newer version.

Delete the existing operator's CSV and manually apply the new CSV.

What is the primary role of an operator in Kubernetes?

To provide a graphical interface for managing Kubernetes clusters.

To replace the kube-controller-manager for all built-in controllers.

To monitor cluster metrics and send alerts to administrators.

To automate the deployment and management of applications by encoding operational knowledge into software.

A team wants to automate the deployment and management of a complex application that requires domain-specific knowledge, such as handling failover and upgrades. They want to use Kubernetes APIs to manage this application. What is the recommended approach?

Use a set of Kubernetes Jobs to run the operational tasks.

Use Helm charts with hooks to manage the application lifecycle.

Deploy the application as a StatefulSet and rely on its built-in features.

Create a custom controller that watches a custom resource and reconciles the application state.

An operator for 'MongoDB' is installed via OLM in the 'mongodb' namespace. The team wants to create a MongoDB instance with specific resource limits. What should they do?

Create a ResourceQuota in the namespace to limit all pods.

Create a MongoDB custom resource with the desired resource limits in the spec.

Modify the ClusterServiceVersion (CSV) to include resource limits.

Edit the operator's Deployment to add resource limits to the operator container.

Certified Kubernetes Administrator (CKA)

Domain 4Objective 8

Understand CRDs, Install and Configure Operators CKA Practice Questions (Page 2)

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 6–10

6application · medium
An operator installed via OLM is running in the 'operators' namespace. The team wants to upgrade the operator to a newer version that is available in the same catalog. What is the correct way to trigger the upgrade?
Select an answer first
7foundation · easy
What is the primary role of an operator in Kubernetes?
Select an answer first
8foundation · easy
Which resource does OLM use to represent an operator that is available for installation from a catalog?
Select an answer first
9application · medium
A team wants to automate the deployment and management of a complex application that requires domain-specific knowledge, such as handling failover and upgrades. They want to use Kubernetes APIs to manage this application. What is the recommended approach?
Select an answer first
10application · medium
An operator for 'MongoDB' is installed via OLM in the 'mongodb' namespace. The team wants to create a MongoDB instance with specific resource limits. What should they do?
Select an answer first

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