991 questions with instant explanations, domain breakdown, and wrong-answer analysis. Built for the real exam.
This is exactly what you see during practice — question, options, and a full explanation after you answer.
A pod named 'web-app' is experiencing high CPU usage. You want to investigate which process inside the container is consuming the most CPU. Which command should you run?
Option B is correct because `kubectl exec web-app -- top` runs the `top` command inside the container of the pod 'web-app', which displays real-time process-level CPU usage. This allows you to identify the specific process consuming the most CPU, directly addressing the question'…Read full explanation
A deployment 'api-deploy' has resource limits set but is frequently being OOMKilled. The team suspects the memory limit is too low. Which approach should be taken to confirm this without causing downtime?
Option D is correct because updating the deployment spec triggers a rolling update, which replaces pods with new ones having the increased memory limit without downtime. This approach leverages Kubernetes' deployment controller to manage the rollout automatically, ensuring servic…Read full explanation
A pod is in CrashLoopBackOff state. You need to view the last few lines of its logs to understand why it is crashing. Which command is most appropriate?
The `--tail=20` flag limits the output to the last 20 lines of the pod's logs, which is the most efficient way to see the recent crash-related errors without scrolling through the entire log history. In a CrashLoopBackOff state, the pod is repeatedly restarting, so viewing the ta…Read full explanation
Answer at your own pace. Explanation and domain tag shown immediately after each answer.
Countdown timer starts immediately. Results and domain scores shown at the end — just like the real exam.
Full explanations on every question
Not just the right answer — you get exactly why each wrong option is wrong, so you learn the concept, not the answer.
Domain score breakdown
After each session see your score by exam domain so you know exactly where to focus study time.
100% free, forever
No subscription, no trial, no email wall. Start a session in under 10 seconds.
Exam-style questions
Scenario-based, precise wording, realistic distractors — written to match what you actually see on exam day.