The correct answer is to detach the degraded volume, create a new volume of the same size and type, attach it to the instance, and add it to the RAID array. This approach works because a degraded volume in a RAID 0 stripe set cannot be repaired; the only recovery path is to physically replace the failed component and re-synchronize it into the array, which minimizes downtime by avoiding unnecessary snapshot operations. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this scenario tests your understanding of how to recover a degraded EBS volume in a RAID array for SAP HANA without disrupting the database—a common trap is assuming you can repair the volume or that snapshots are required, but RAID 0 has no parity and simply needs a fresh volume re-added. Remember the mnemonic: “Detach, Replace, Re-add” to avoid the pitfalls of trying to fix or snapshot a degraded stripe.
PAS-C01 Technology Practice Question
This PAS-C01 practice question tests your understanding of technology. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 SAP HANA database is running on an EC2 instance with 16 EBS volumes in a striped RAID 0 configuration. The system administrator notices that one of the volumes is degraded in the RAID array. How can the administrator recover the array with minimal downtime?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Detach the degraded volume, create a new volume of the same size and type, attach it to the instance, and add it to the RAID array.
Option C is correct: Detach the degraded volume, replace it with a new volume, and re-add it to the RAID array. Option A is incorrect because you cannot repair a physical volume. Option B is incorrect because you cannot replace an attached volume. Option D is incorrect because snapshots are not needed for a degraded volume.
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.
✓
Detach the degraded volume, create a new volume of the same size and type, attach it to the instance, and add it to the RAID array.
Why this is correct
C is correct: this is the standard procedure for replacing a failed disk in a RAID array.
Related concept
Read the scenario before looking for a memorised answer.
✗
Detach the degraded volume and attach a new volume with the same device name.
Why it's wrong here
B is wrong: device name may conflict; you need to re-add to RAID.
✗
Take a snapshot of the degraded volume and restore it to a new volume.
Why it's wrong here
D is wrong: snapshot of a degraded volume may have errors.
✗
Run a filesystem repair on the degraded volume while it is still attached.
Why it's wrong here
A is wrong: you cannot repair a degraded EBS volume.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which PAS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Technology — This question tests Technology — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Detach the degraded volume, create a new volume of the same size and type, attach it to the instance, and add it to the RAID array. — Option C is correct: Detach the degraded volume, replace it with a new volume, and re-add it to the RAID array. Option A is incorrect because you cannot repair a physical volume. Option B is incorrect because you cannot replace an attached volume. Option D is incorrect because snapshots are not needed for a degraded volume.
What should I do if I get this PAS-C01 question wrong?
Identify which PAS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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