- A
Adjust the CSI driver configuration to increase the maximum number of concurrent operations and reduce the request timeout
Increasing concurrency and reducing timeouts can help handle the volume of requests and prevent the gRPC connection pool from being exhausted.
- B
Increase the memory limit of the CSI controller pod to reduce OOM risk
Why wrong: Memory is not the root cause; the 'context deadline exceeded' errors indicate network/API timeouts, not memory pressure.
- C
Restart the CSI controller pod to clear its memory and reset connections
Why wrong: Restarting may temporarily alleviate the issue, but the underlying problem of insufficient connection capacity will recur.
- D
Add a network policy to isolate tenant namespaces to reduce load on the CSI driver
Why wrong: Network policies do not affect storage provisioning; the issue is at the CSI driver level, not network traffic.
CKA Storage Practice Question
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.
You are a cluster administrator for a multi-tenant Kubernetes cluster. Each tenant runs a set of microservices in their own namespace. The cluster uses a custom CSI driver that provisions storage on a NetApp storage array. Recently, several tenants reported that their pods are stuck in Pending state with events indicating 'failed to provision volume' and 'timeout waiting for a volume to be created'. Upon investigation, you notice that the CSI controller pod is running but has high memory usage, and logs show 'context deadline exceeded' errors when calling the storage array API. The storage array is healthy and responsive to manual API calls from your workstation. Meanwhile, PVCs created in a test namespace with the same StorageClass succeed. What is the most likely cause and the best course of action?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
Adjust the CSI driver configuration to increase the maximum number of concurrent operations and reduce the request timeout
Option A is correct because the 'context deadline exceeded' errors and high memory usage in the CSI controller pod indicate that the driver is overwhelmed by the number of concurrent volume provisioning requests, causing timeouts. Increasing the maximum number of concurrent operations allows the driver to handle more requests in parallel, while reducing the request timeout prevents long waits for unresponsive calls, aligning with the healthy storage array and successful test PVCs.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Adjust the CSI driver configuration to increase the maximum number of concurrent operations and reduce the request timeout
Why this is correct
Increasing concurrency and reducing timeouts can help handle the volume of requests and prevent the gRPC connection pool from being exhausted.
Clue confirmation
The clue words "best", "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Increase the memory limit of the CSI controller pod to reduce OOM risk
Why it's wrong here
Memory is not the root cause; the 'context deadline exceeded' errors indicate network/API timeouts, not memory pressure.
- ✗
Restart the CSI controller pod to clear its memory and reset connections
Why it's wrong here
Restarting may temporarily alleviate the issue, but the underlying problem of insufficient connection capacity will recur.
- ✗
Add a network policy to isolate tenant namespaces to reduce load on the CSI driver
Why it's wrong here
Network policies do not affect storage provisioning; the issue is at the CSI driver level, not network traffic.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may focus on the high memory usage and assume an OOM issue (Option B) or a transient failure (Option C), rather than recognizing the concurrency and timeout misconfiguration as the root cause of the provisioning failures.
Detailed technical explanation
How to think about this question
CSI drivers typically use a gRPC interface with configurable parameters like 'csi-parameters' for max concurrent operations (e.g., '--max-concurrent-volumes-per-node' or driver-specific settings) and '--timeout' for API calls. When the number of PVC creation requests exceeds the driver's concurrency limit, requests queue up and may exceed the default timeout (often 30-60 seconds), leading to 'context deadline exceeded' errors. In multi-tenant clusters, many simultaneous PVC requests can overwhelm the driver even if the storage array is healthy, as seen with successful test PVCs in a low-traffic namespace.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Storage — study guide chapter
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FAQ
Questions learners often ask
What does this CKA question test?
Storage — This question tests Storage — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Adjust the CSI driver configuration to increase the maximum number of concurrent operations and reduce the request timeout — Option A is correct because the 'context deadline exceeded' errors and high memory usage in the CSI controller pod indicate that the driver is overwhelmed by the number of concurrent volume provisioning requests, causing timeouts. Increasing the maximum number of concurrent operations allows the driver to handle more requests in parallel, while reducing the request timeout prevents long waits for unresponsive calls, aligning with the healthy storage array and successful test PVCs.
What should I do if I get this CKA question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "best", "most likely". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
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 →
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.
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