Question 640 of 997
Kubernetes FundamentalshardMultiple SelectObjective-mapped

PersistentVolumeClaim Pending — Reasons and Solutions

This KCNA practice question tests your understanding of kubernetes fundamentals. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: persistentVolumeClaim (PVC). 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.

Which TWO of the following are valid reasons that a PersistentVolumeClaim (PVC) may remain in 'Pending' state?

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

No PersistentVolume exists that matches the PVC's storage class and size requirements

A PersistentVolumeClaim (PVC) stays in 'Pending' state until a suitable PersistentVolume (PV) is available to bind. Two common reasons are: (1) No existing PV matches the PVC's storage class and size requirements (static provisioning failure), and (2) The PVC references a StorageClass that does not exist, preventing dynamic provisioning. Other reasons like pod scheduling or dynamic provisioner unavailability are not among the two correct answers.

Key principle: PersistentVolumeClaim (PVC)

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • The pod that references the PVC is not scheduled yet

    Why it's wrong here

    The pod that references the PVC is not scheduled yet – Incorrect. PVC binding is independent of pod scheduling; the PVC can bind before the pod is scheduled.

  • No PersistentVolume exists that matches the PVC's storage class and size requirements

    Why this is correct

    No PersistentVolume exists that matches the PVC's storage class and size requirements – Correct. If no matching PV exists, the PVC cannot bind and remains Pending.

    Related concept

    PersistentVolumeClaim (PVC)

  • The PVC is using a StorageClass that does not exist

    Why this is correct

    The PVC is using a StorageClass that does not exist – Correct. If the specified StorageClass does not exist, dynamic provisioning cannot create a PV, leaving the PVC Pending.

    Related concept

    PersistentVolumeClaim (PVC)

  • The PVC's access mode is 'ReadWriteMany' but the underlying storage only supports 'ReadWriteOnce'

    Why it's wrong here

    The PVC's access mode is 'ReadWriteMany' but the underlying storage only supports 'ReadWriteOnce' – Incorrect. While this would prevent binding, it is a specific subset of 'no matching PV' and not a general reason listed as correct here.

  • The cluster's dynamic provisioner is unavailable or misconfigured

    Why it's wrong here

    The cluster's dynamic provisioner is unavailable or misconfigured – Incorrect. Although true, the question requires exactly two correct answers; B and C are the intended correct reasons.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Candidates often assume only PV unavailability causes Pending, but a missing or misconfigured StorageClass is equally valid. The KCNA exam may test that PVCs using a non-existent StorageClass will also remain Pending.

Detailed technical explanation

How to think about this question

Under the hood, the Kubernetes PersistentVolume controller continuously reconciles PVCs and PVs. When a PVC is created, the controller checks for a matching PV based on storage class, access modes, and capacity. If no match is found, the PVC remains in Pending state. If a StorageClass with a dynamic provisioner is specified, the provisioner must be available and correctly configured; otherwise, the PVC will also remain Pending. In real-world scenarios, misconfigured cloud provider credentials or missing CSI driver plugins often cause dynamic provisioning to fail, leaving PVCs stuck in Pending.

KKey Concepts to Remember

  • PersistentVolumeClaim (PVC)
  • StorageClass
  • Pending State
  • Dynamic Provisioning

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

PersistentVolumeClaim (PVC)

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. PersistentVolumeClaim (PVC) Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.

Quick reference

AWS S3 Storage Class Comparison

Storage ClassMin DurationRetrievalUse Case
S3 StandardNoneImmediateFrequently accessed data
S3 Standard-IA30 daysImmediateInfrequent access, rapid retrieval
S3 One Zone-IA30 daysImmediateNon-critical infrequent data
S3 Intelligent-TieringNoneImmediate–hoursUnknown or changing access patterns
S3 Glacier Instant90 daysMillisecondsArchive with instant retrieval
S3 Glacier Flexible90 daysMinutes–hoursArchive, flexible retrieval
S3 Glacier Deep Archive180 daysHoursLong-term compliance archive

What to study next

Got this wrong? Here's your next step.

Review persistentVolumeClaim (PVC), 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?

Kubernetes Fundamentals — This question tests Kubernetes Fundamentals — PersistentVolumeClaim (PVC).

What is the correct answer to this question?

The correct answer is: No PersistentVolume exists that matches the PVC's storage class and size requirements — A PersistentVolumeClaim (PVC) stays in 'Pending' state until a suitable PersistentVolume (PV) is available to bind. Two common reasons are: (1) No existing PV matches the PVC's storage class and size requirements (static provisioning failure), and (2) The PVC references a StorageClass that does not exist, preventing dynamic provisioning. Other reasons like pod scheduling or dynamic provisioner unavailability are not among the two correct answers.

What should I do if I get this KCNA question wrong?

Review persistentVolumeClaim (PVC), then practise related KCNA questions on the same topic to reinforce the concept.

What is the key concept behind this question?

PersistentVolumeClaim (PVC)

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Last reviewed: Jul 4, 2026

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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.