This CKA practice question tests your understanding of storage. 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.
An application requires a persistent volume that can be shared across multiple Pods running on different nodes, with read-write access from all Pods simultaneously. Which access mode should be specified in the PersistentVolumeClaim?
ReadWriteOncePod
Why wrong: ReadWriteOncePod restricts to a single Pod.
ReadOnlyMany
Why wrong: ReadOnlyMany allows multiple Pods to read but not write.
ReadWriteOnce
Why wrong: ReadWriteOnce only allows a single node to mount the volume.
ReadWriteMany
ReadWriteMany allows multiple Pods across nodes to read and write simultaneously.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
ReadWriteMany
The correct access mode is ReadWriteMany (RWX), which allows the volume to be mounted as read-write by multiple Pods across different nodes simultaneously. This matches the requirement for shared concurrent read-write access from all Pods.
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.
ReadWriteOncePod
Why it's wrong here
ReadWriteOncePod restricts to a single Pod.
ReadOnlyMany
Why it's wrong here
ReadOnlyMany allows multiple Pods to read but not write.
ReadWriteOnce
Why it's wrong here
ReadWriteOnce only allows a single node to mount the volume.
ReadWriteMany
Why this is correct
ReadWriteMany allows multiple Pods across nodes to read and write simultaneously.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates often confuse ReadWriteMany with ReadWriteOnce, assuming that 'once' means 'one Pod' rather than 'one node', or they forget that ReadOnlyMany does not grant write access despite allowing multi-Pod mounting.
Detailed technical explanation
ReadWriteMany is typically supported by network-based storage solutions like NFS, GlusterFS, or CephFS, which use a shared filesystem protocol to coordinate concurrent writes. Under the hood, the CSI driver or in-tree provisioner must implement the `MULTI_NODE_MULTI_WRITER` capability; not all storage backends support this, so the PVC will remain pending if the underlying PV or storage class does not advertise RWX support.
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 CKA 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
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Storage — study guide chapter
Learn the concepts, then practise the questions
Storage practice questions
Targeted practice on this topic area only
All CKA questions
1,005 questions across all exam domains
Certified Kubernetes Administrator CKA study guide
Full concept coverage aligned to exam objectives
CKA practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise CKA questions linked to Cluster Architecture, Installation and Configuration.
Practise CKA questions linked to Services and Networking.
Practise CKA questions linked to Workloads and Scheduling.
Practise CKA questions linked to Storage.
Practise CKA questions linked to Troubleshooting.
Practise CKA questions linked to Cluster Architecture, Installation & Configuration.
Practise CKA questions linked to Workloads & Scheduling.
Practise CKA questions linked to Services & Networking.
Practise CKA questions linked to CKA fundamentals.
Practise CKA questions linked to CKA scenario.
Practise CKA questions linked to CKA troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Storage — This question tests Storage — Read the scenario before looking for a memorised answer..
The correct answer is: ReadWriteMany — The correct access mode is ReadWriteMany (RWX), which allows the volume to be mounted as read-write by multiple Pods across different nodes simultaneously. This matches the requirement for shared concurrent read-write access from all Pods.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
Last reviewed: Jun 11, 2026
This CKA 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 CKA exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.