Free Certified Kubernetes Application Developer (CKAD) Practice Test

You need to run a one-off task that initializes application data before the main web container starts in the same Pod. What is the most appropriate Kubernetes mechanism?

A team wants to package a multi-container application so that the containers share localhost networking and a writable volume. Which Kubernetes object should be used as the basic execution unit?

You are designing a container image for a stateless API. Which practice is most aligned with Kubernetes application design best practices?

An application requires a helper container that continuously tails logs from a shared volume and forwards them to an external system while the main application runs. Which pattern best fits this requirement?

You update a Deployment image tag, but want the rollout to happen gradually with Kubernetes managing ReplicaSets and allowing rollback if needed. Which action should you take?

A Deployment must ensure that at least some old Pods stay available while new Pods are being rolled out. Which Deployment strategy supports this behavior by default?

You need to run a batch task exactly once to completion, and Kubernetes should restart the container only if it fails before the task finishes. Which workload resource is most appropriate?

A team wants a task to run on a defined schedule every night. Sometimes a previous run is still active when the next schedule starts, and they want to prevent overlapping executions. Which approach is best?

After deploying a new application version, users report errors. You want to verify whether the rollout is still progressing or has failed. Which Kubernetes command output is most directly useful?

A Pod keeps restarting. You suspect the main process is crashing immediately after start. Which source of information should you check first to confirm the application error emitted by the container?

A Pod is running, but it is never added to the Service endpoints. The application takes time to warm up before accepting traffic. What is the most likely missing configuration?

Your application reads non-sensitive configuration values such as feature flags and endpoint URLs. You want to inject them into a Pod without rebuilding the image. What is the best Kubernetes resource to use?

A containerized application must receive a database password securely at runtime. Which approach is recommended?

A Pod needs to call the Kubernetes API and should follow least-privilege principles. Which design is most appropriate?

An application requires a file generated from several key-value pairs, and the application automatically rereads the file when it changes. Which mounting approach best supports this use case?

A security review finds that a container is running as root and can modify its root filesystem. Which Pod-level or container-level settings would best reduce this risk?

A Pod needs an environment variable containing the name of the node it is running on, without hardcoding it. Which feature should you use?

You want to expose a Deployment internally within the cluster using a stable virtual IP and DNS name. Which Service type should you create?

A web application should be reachable from outside the cluster over HTTP, and requests for /api and /web must route to different backend Services based on path. Which Kubernetes resource is designed for this?

A client application inside the cluster must discover individual Pod IPs directly for a stateful peer-to-peer protocol instead of using load balancing through a single virtual IP. What is the best service design?