- A
Amazon S3: Object storage for internet-scale data.
Amazon S3 is an object storage service designed for storing and retrieving any amount of data from anywhere.
- B
Amazon EBS: Block-level storage volumes for EC2 instances.
Amazon EBS provides persistent block storage volumes for use with EC2 instances.
- C
Amazon EFS: File storage for EC2 instances, scalable.
Amazon EFS is a scalable file storage system for use with EC2 instances.
- D
Amazon Glacier: Low-cost archival storage.
Amazon Glacier is a low-cost storage service for data archiving and long-term backup.
- E
Amazon S3: Block-level storage for EC2 instances.
Why wrong: Incorrect — this describes Amazon EBS, not S3. S3 is object storage, not block storage.
- F
Amazon EBS: Object storage for internet-scale data.
Why wrong: Incorrect — this describes Amazon S3, not EBS. EBS is block storage, not object storage.
SOA-C02 Reliability and Business Continuity Practice Question
This SOA-C02 practice question tests your understanding of reliability and business continuity. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Match each AWS storage service to its description.
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
Amazon S3: Object storage for internet-scale data.
Amazon S3 is object storage, EBS is block storage, EFS is file storage, and Glacier is archival. Common confusions include mixing S3 and EBS definitions.
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.
- ✓
Amazon S3: Object storage for internet-scale data.
Why this is correct
Amazon S3 is an object storage service designed for storing and retrieving any amount of data from anywhere.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Amazon EBS: Block-level storage volumes for EC2 instances.
Why this is correct
Amazon EBS provides persistent block storage volumes for use with EC2 instances.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Amazon EFS: File storage for EC2 instances, scalable.
Why this is correct
Amazon EFS is a scalable file storage system for use with EC2 instances.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Amazon Glacier: Low-cost archival storage.
Why this is correct
Amazon Glacier is a low-cost storage service for data archiving and long-term backup.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Amazon S3: Block-level storage for EC2 instances.
Why it's wrong here
Incorrect — this describes Amazon EBS, not S3. S3 is object storage, not block storage.
- ✗
Amazon EBS: Object storage for internet-scale data.
Why it's wrong here
Incorrect — this describes Amazon S3, not EBS. EBS is block storage, not object storage.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
What to study next
Got this wrong? Here's your next step.
Identify which SOA-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.
- →
Reliability and Business Continuity — study guide chapter
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FAQ
Questions learners often ask
What does this SOA-C02 question test?
Reliability and Business Continuity — This question tests Reliability and Business Continuity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Amazon S3: Object storage for internet-scale data. — Amazon S3 is object storage, EBS is block storage, EFS is file storage, and Glacier is archival. Common confusions include mixing S3 and EBS definitions.
What should I do if I get this SOA-C02 question wrong?
Identify which SOA-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 11, 2026
This SOA-C02 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 SOA-C02 exam.
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