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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?

A
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 is the correct procedure. It allows minimal downtime as the array can be rebuilt after adding the new volume.
B
Detach the degraded volume and attach a new volume with the same device name.
Why wrong: This is incomplete because simply attaching a new volume does not automatically incorporate it into the RAID array; the administrator must also add it to the array and rebuild it.
C
Take a snapshot of the degraded volume and restore it to a new volume.
Why wrong: This is not optimal because the snapshot of a degraded volume may contain errors, and the process introduces unnecessary steps and longer downtime.
D
Run a filesystem repair on the degraded volume while it is still attached.
Why wrong: This is ineffective because filesystem repair cannot fix a physical volume failure; the volume must be replaced.

Full breakdown with real-world context →

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

✓

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 A is correct because it outlines the proper procedure to replace a degraded volume in a RAID 0 array with minimal downtime: detach the faulty volume, create a new EBS volume of the same size and type, attach it to the instance, and add it to the RAID array. This approach avoids disrupting the remaining volumes and allows the array to be rebuilt quickly. Option B is incomplete because simply attaching a new volume with the same device name does not automatically incorporate it into the RAID array. Option C is not optimal as creating a snapshot and restoring it introduces unnecessary steps and longer downtime. Option D is ineffective because filesystem repair cannot fix a physical volume failure.

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
This is the correct procedure. It allows minimal downtime as the array can be rebuilt after adding the new volume.
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
This is incomplete because simply attaching a new volume does not automatically incorporate it into the RAID array; the administrator must also add it to the array and rebuild it.
✗
Take a snapshot of the degraded volume and restore it to a new volume.
Why it's wrong here
This is not optimal because the snapshot of a degraded volume may contain errors, and the process introduces unnecessary steps and longer downtime.
✗
Run a filesystem repair on the degraded volume while it is still attached.
Why it's wrong here
This is ineffective because filesystem repair cannot fix a physical volume failure; the volume must be replaced.

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.

Quick reference

RAID Level Comparison

RAID Level	Min Disks	Fault Tolerance	Read	Write	Usable Capacity
RAID 0	2	None	Excellent	Excellent	100%
RAID 1	2	1 disk	Good	Moderate	50%
RAID 5	3	1 disk	Good	Moderate	67–94%
RAID 6	4	2 disks	Good	Lower	50–88%
RAID 10	4	1 disk per mirror	Excellent	Good	50%

RAID is not a backup strategy — it protects against disk failure but not against accidental deletion, ransomware, or site-level events.

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.

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FAQ

Questions learners often ask

What does this PAS-C01 question test?

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 A is correct because it outlines the proper procedure to replace a degraded volume in a RAID 0 array with minimal downtime: detach the faulty volume, create a new EBS volume of the same size and type, attach it to the instance, and add it to the RAID array. This approach avoids disrupting the remaining volumes and allows the array to be rebuilt quickly. Option B is incomplete because simply attaching a new volume with the same device name does not automatically incorporate it into the RAID array. Option C is not optimal as creating a snapshot and restoring it introduces unnecessary steps and longer downtime. Option D is ineffective because filesystem repair cannot fix a physical volume failure.

What should I do if I get this PAS-C01 question wrong?

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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This PAS-C01 practice question is part of Courseiva's free Amazon Web Services 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 PAS-C01 exam.