This CV0-004 practice question tests your understanding of deployment. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 company is deploying a stateful application that requires persistent storage. They are using Kubernetes. Which resource should they create to ensure data persists across pod restarts?
Deployment
Why wrong: Deployment manages pod replicas but does not provide persistent storage.
Secret
Why wrong: Secret stores sensitive data, not persistent storage.
PersistentVolumeClaim
PVC provides persistent storage that survives pod restarts.
ConfigMap
Why wrong: ConfigMap stores configuration data, not persistent storage.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
PersistentVolumeClaim
A PersistentVolumeClaim (PVC) is the correct resource because it abstracts the underlying storage details and allows a pod to request persistent storage that survives pod restarts. When a pod is recreated, the PVC ensures the same volume is reattached, preserving application state. This is essential for stateful applications in Kubernetes, as pods are ephemeral by default.
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.
Deployment
Why it's wrong here
Deployment manages pod replicas but does not provide persistent storage.
Secret
Why it's wrong here
Secret stores sensitive data, not persistent storage.
PersistentVolumeClaim
Why this is correct
PVC provides persistent storage that survives pod restarts.
Related concept
Read the scenario before looking for a memorised answer.
ConfigMap
Why it's wrong here
ConfigMap stores configuration data, not persistent storage.
Common exam traps
The trap here is that candidates confuse a Deployment's ability to manage replicas with data persistence, overlooking that a Deployment alone does not guarantee storage survival across pod restarts without an explicit PVC.
Detailed technical explanation
Under the hood, a PVC binds to a PersistentVolume (PV) that is provisioned by a storage class (e.g., using CSI drivers like NFS or cloud-specific EBS/GCE PD). The PV's lifecycle is independent of the pod, so even if the pod is deleted and recreated, the PVC and its bound PV remain, ensuring data persistence. In real-world scenarios, this is critical for databases like MySQL or Cassandra running on Kubernetes, where data loss would be catastrophic.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the CV0-004 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. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Deployment — This question tests Deployment — Read the scenario before looking for a memorised answer..
The correct answer is: PersistentVolumeClaim — A PersistentVolumeClaim (PVC) is the correct resource because it abstracts the underlying storage details and allows a pod to request persistent storage that survives pod restarts. When a pod is recreated, the PVC ensures the same volume is reattached, preserving application state. This is essential for stateful applications in Kubernetes, as pods are ephemeral by default.
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 25, 2026
This CV0-004 practice question is part of Courseiva's free CompTIA 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 CV0-004 exam.
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