20+ practice questions focused on Application Design and Build — one of the most tested topics on the Certified Kubernetes Application Developer CKAD exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Application Design and Build PracticeA team is deploying a microservice that requires initialization of a database schema before the main application starts. The init container must run a script that writes to a shared volume. Which configuration correctly ensures the init container completes before the main container runs?
Explanation: Option C is correct because an init container runs to completion before any main container in the Pod starts, ensuring the database schema script finishes. By mounting the shared volume to both the init container and the main container, the script's output (e.g., schema files) is available to the main application when it launches.
A developer needs to expose a deployment named 'web-app' running on port 8080 to external traffic. The cluster is on-premises with no cloud load balancer. Which service type should be used?
Explanation: Option D (NodePort) is correct because it exposes a service on a static port on each node's IP address, allowing external traffic to reach the 'web-app' deployment on port 8080 without requiring a cloud load balancer. In on-premises clusters, NodePort is the standard service type for external access when no cloud LB is available, as it opens a high-port (30000-32767) on every node that forwards traffic to the ClusterIP service.
A developer is creating a ConfigMap from a file named 'app.properties'. The file contains key-value pairs. Which command correctly creates the ConfigMap with keys matching the file content?
Explanation: Option A is correct because `--from-file=app.properties` creates a ConfigMap where each key-value pair from the file becomes a separate data entry, with the key being the filename (app.properties) and the value being the entire file content. This matches the requirement that the ConfigMap keys match the file content, meaning the file itself is stored as a single key-value pair where the key is the filename.
Which TWO statements are true about Kubernetes Secrets?
Explanation: Option A is correct because Kubernetes Secrets store data as base64-encoded strings in YAML manifests. This encoding is not encryption; it simply converts binary or non-printable data into an ASCII string format for safe inclusion in YAML. The base64 encoding is a standard practice for representing arbitrary data in Kubernetes resource definitions.
Which THREE are valid reasons to use a StatefulSet instead of a Deployment?
Explanation: StatefulSet assigns each pod a stable, unique network identity (e.g., a hostname like `web-0`, `web-1`) via a headless Service, which is critical for stateful applications like databases that rely on consistent DNS names for clustering and discovery. Deployments create pods with random, ephemeral hostnames, making them unsuitable for workloads requiring predictable network identities.
+15 more Application Design and Build questions available
Practice all Application Design and Build questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Application Design and Build. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Application Design and Build questions on the CKAD frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Application Design and Build is tested as part of the Certified Kubernetes Application Developer CKAD blueprint. Practicing with targeted Application Design and Build questions ensures you can handle any format or difficulty that appears.
Yes. Courseiva provides free CKAD practice questions across all exam topics and domains. The platform includes topic-based practice, mock exams, missed-question review, bookmarked questions, and readiness tracking — no account required.
Difficulty is subjective, but Application Design and Build is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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