This KCNA practice question tests your understanding of container orchestration. Compare every option against the stated constraints before choosing — the best answer satisfies all requirements, not just the most obvious one. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A developer wants to run a one-time task that creates a database schema and then exits. Which Kubernetes workload type is most appropriate?
DaemonSet
Why wrong: DaemonSets run a pod on every node.
StatefulSet
Why wrong: StatefulSets are for stateful applications.
Deployment
Why wrong: Deployments are for long-running processes.
Job
Jobs run to completion.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Job
A Job is the correct choice because it is designed for finite, one-time tasks that run to completion, such as creating a database schema. Unlike long-running workloads, a Job creates one or more Pods and ensures they terminate successfully after the task finishes, making it ideal for batch processing or initialization tasks.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
DaemonSet
Why it's wrong here
DaemonSets run a pod on every node.
StatefulSet
Why it's wrong here
StatefulSets are for stateful applications.
Deployment
Why it's wrong here
Deployments are for long-running processes.
Job
Why this is correct
Jobs run to completion.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates confuse a one-time task with a Deployment because they think of 'running a container' generically, forgetting that Deployments enforce a restart policy that would keep the task running indefinitely.
Detailed technical explanation
Under the hood, a Job creates Pods that are not restarted once they reach the Succeeded phase (restartPolicy: Never or OnFailure), and the Job controller tracks completion status via the .status.succeeded field. In real-world scenarios, Jobs are often used for database migrations (e.g., running `kubectl run --restart=Never --image=migration-tool init-db`) or batch data processing, where the Pod must exit cleanly without triggering a restart loop.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
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FAQ
Container Orchestration — This question tests Container Orchestration — Read the scenario before looking for a memorised answer..
The correct answer is: Job — A Job is the correct choice because it is designed for finite, one-time tasks that run to completion, such as creating a database schema. Unlike long-running workloads, a Job creates one or more Pods and ensures they terminate successfully after the task finishes, making it ideal for batch processing or initialization tasks.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This KCNA practice question is part of Courseiva's free CNCF certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the KCNA exam.
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