EX280 Storage And Persistent Volumes Practice Question
A pod fails to start, and the event log shows a Multi-Attach error for volume 'pvc-xyz'. What is the root cause of this error?
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
✓
A ReadWriteOnce volume is attempting to be attached to a second node while still attached to the first.
A Multi-Attach error occurs when a volume with ReadWriteOnce access mode is already attached to one worker node and another node attempts to mount it simultaneously (often during pod rescheduling or rolling updates).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
A ReadWriteOnce volume is attempting to be attached to a second node while still attached to the first.
Why this is correct
RWO block storage can only be attached to one node at a time.
- ✗
The PVC storage class has volumeBindingMode set to Immediate.
Why it's wrong here
While Immediate binding can contribute to scheduling challenges, Multi-Attach specifically relates to node attachment exclusivity on RWO volumes.
- ✗
The storage backend has run out of physical disk capacity.
Why it's wrong here
Capacity issues result in provisioning errors, not multi-attach attachment errors.
- ✗
The CSI driver pod has crashed on the master node.
Why it's wrong here
CSI drivers run on worker nodes, not master nodes.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Red Hat exam blueprint
This EX280 practice question is part of Courseiva's free Red Hat 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 EX280 exam.