- A
Take periodic EBS snapshots and restore in another AZ.
Why wrong: Incorrect. Periodic EBS snapshots are not real-time and cannot guarantee zero data loss; there is always a window of potential data loss between snapshots.
- B
Use Amazon EFS instead of EBS volumes.
Correct. Amazon EFS provides a regional file system that is automatically replicated across multiple AZs, ensuring availability and no data loss during a single AZ failure.
- C
Use an EBS volume in one AZ and attach it to instances in another AZ.
Why wrong: Incorrect. EBS volumes are zone-bound; they cannot be attached to instances in a different Availability Zone.
- D
Use an EBS multi-attach volume with a cluster-aware file system.
Why wrong: Incorrect. EBS multi-attach volumes only support attachment within the same Availability Zone, not across different AZs, so they do not provide high availability across AZs.
SAP-C02 Continuous Improvement for Existing Solutions Practice Question
This SAP-C02 practice question tests your understanding of continuous improvement for existing solutions. 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.
A financial services company runs a critical application on EC2 instances in an Auto Scaling group across multiple Availability Zones. They need to ensure that in the event of a single AZ failure, the application remains available with no data loss. The application uses EBS volumes for persistent storage. What should a solutions architect recommend?
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
Use Amazon EFS instead of EBS volumes.
Option B is correct because Amazon EFS is a regional, fully managed file system that automatically replicates data across multiple Availability Zones, providing high availability and durability. This ensures no data loss during a single AZ failure. Option A is incorrect because periodic snapshots introduce a recovery point objective (RPO) that may result in data loss. Option C is incorrect because EBS volumes are tied to a single AZ and cannot be attached to instances in another AZ. Option D is incorrect because EBS multi-attach volumes only allow attachment within the same AZ, not across different AZs, thus cannot provide cross-AZ high availability.
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.
- ✗
Take periodic EBS snapshots and restore in another AZ.
Why it's wrong here
Incorrect. Periodic EBS snapshots are not real-time and cannot guarantee zero data loss; there is always a window of potential data loss between snapshots.
- ✓
Use Amazon EFS instead of EBS volumes.
Why this is correct
Correct. Amazon EFS provides a regional file system that is automatically replicated across multiple AZs, ensuring availability and no data loss during a single AZ failure.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use an EBS volume in one AZ and attach it to instances in another AZ.
Why it's wrong here
Incorrect. EBS volumes are zone-bound; they cannot be attached to instances in a different Availability Zone.
- ✗
Use an EBS multi-attach volume with a cluster-aware file system.
Why it's wrong here
Incorrect. EBS multi-attach volumes only support attachment within the same Availability Zone, not across different AZs, so they do not provide high availability across AZs.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which SAP-C02 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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Continuous Improvement for Existing Solutions — study guide chapter
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FAQ
Questions learners often ask
What does this SAP-C02 question test?
Continuous Improvement for Existing Solutions — This question tests Continuous Improvement for Existing Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Amazon EFS instead of EBS volumes. — Option B is correct because Amazon EFS is a regional, fully managed file system that automatically replicates data across multiple Availability Zones, providing high availability and durability. This ensures no data loss during a single AZ failure. Option A is incorrect because periodic snapshots introduce a recovery point objective (RPO) that may result in data loss. Option C is incorrect because EBS volumes are tied to a single AZ and cannot be attached to instances in another AZ. Option D is incorrect because EBS multi-attach volumes only allow attachment within the same AZ, not across different AZs, thus cannot provide cross-AZ high availability.
What should I do if I get this SAP-C02 question wrong?
Identify which SAP-C02 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.
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 →
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Last reviewed: Jun 20, 2026
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