- A
Deployment
Why wrong: Deployment is used for stateless applications that need to run continuously and maintain a desired number of replicas. It is not suited for batch jobs that run to completion.
- B
Job
Why wrong: Job runs a finite task to completion, but it does not have scheduling capabilities. It would only run once, not every hour.
- C
DaemonSet
Why wrong: DaemonSet ensures a copy of a pod runs on every node, typically for daemon processes. It does not run batch jobs to completion on a schedule.
- D
CronJob
CronJob is the correct resource because it runs Jobs on a recurring schedule (every hour). Each Job runs to completion and the CronJob handles the timing.
Question 803 of 997
Kubernetes CronJob: Scheduled Batch Jobs
This KCNA practice question tests your understanding of container orchestration. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: cronJob. 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.
You need to run a batch job that processes data every hour and exits upon completion. Which Kubernetes resource should you use?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
CronJob
The correct choice is CronJob. While a Job is designed to run a finite task to completion, the requirement to run 'every hour' indicates a recurring schedule. A CronJob creates Jobs on a specified schedule, so it is the appropriate resource to use. The Job itself will run and exit, but the CronJob manages the schedule.
Key principle: CronJob
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Deployment
Why it's wrong here
Deployment is used for stateless applications that need to run continuously and maintain a desired number of replicas. It is not suited for batch jobs that run to completion.
- ✗
Job
Why it's wrong here
Job runs a finite task to completion, but it does not have scheduling capabilities. It would only run once, not every hour.
- ✗
DaemonSet
Why it's wrong here
DaemonSet ensures a copy of a pod runs on every node, typically for daemon processes. It does not run batch jobs to completion on a schedule.
- ✓
CronJob
Why this is correct
CronJob is the correct resource because it runs Jobs on a recurring schedule (every hour). Each Job runs to completion and the CronJob handles the timing.
Related concept
CronJob
Common exam traps
Common exam trap: answer the scenario, not the keyword
A common pitfall is focusing on the phrase 'exits upon completion' and choosing Job, forgetting that the question specifies a recurring schedule (every hour). CronJob is the scheduler that creates Jobs at specified times; without it, the Job would only run once.
Detailed technical explanation
How to think about this question
Under the hood, a Job creates one or more Pods and tracks their successful completion via the `.status.succeeded` field; once the specified number of completions is reached, the Job is marked as finished and no further Pods are created. A subtle behavior is that if a Pod fails, the Job controller will automatically restart it (depending on the `restartPolicy`, which must be `OnFailure` or `Never`), and by default, Jobs do not have a deadline unless a `activeDeadlineSeconds` is set. In a real-world scenario, a data processing pipeline might use a CronJob to trigger a Job every hour, where the Job itself runs a container that processes a batch of files and then exits, ensuring no resource waste from idle Pods.
KKey Concepts to Remember
- CronJob
- Job
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
CronJob
Real-world example
How this comes up in practice
A practitioner preparing for the KCNA exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. CronJob Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Review cronJob, then practise related KCNA questions on the same topic to reinforce the concept.
- →
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FAQ
Questions learners often ask
What does this KCNA question test?
Container Orchestration — This question tests Container Orchestration — CronJob.
What is the correct answer to this question?
The correct answer is: CronJob — The correct choice is CronJob. While a Job is designed to run a finite task to completion, the requirement to run 'every hour' indicates a recurring schedule. A CronJob creates Jobs on a specified schedule, so it is the appropriate resource to use. The Job itself will run and exit, but the CronJob manages the schedule.
What should I do if I get this KCNA question wrong?
Review cronJob, then practise related KCNA questions on the same topic to reinforce the concept.
What is the key concept behind this question?
CronJob
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Last reviewed: Jun 30, 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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