- A
Use the CloudWatch agent with the auto-scaling group lifecycle hooks
Why wrong: Lifecycle hooks can help drain but agent streaming is already covered by A.
- B
Mount an EFS volume to the instances for log storage
Persistent storage ensures logs survive instance termination.
- C
Install the CloudWatch Logs agent on each EC2 instance to stream logs to CloudWatch Logs
Streams logs to CloudWatch Logs in real-time.
- D
Configure the Auto Scaling group to send logs to Amazon S3 on instance termination
Why wrong: Instance termination might not allow reliable upload.
- E
Use Amazon SQS to buffer log events before sending to CloudWatch Logs
Why wrong: Adds unnecessary complexity and latency.
Question 831 of 1,746
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 company runs a web application on EC2 instances in an Auto Scaling group. The application writes logs to local instance storage. The operations team wants to centralize log analysis using Amazon CloudWatch Logs. The team needs a solution that is resilient to instance failures and does not lose logs. Which TWO options should the team implement? (Choose TWO.)
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
✓
Mount an EFS volume to the instances for log storage
Option B (EFS volume) ensures log persistence even if an instance fails, because EFS is a shared, durable file system. Option C (CloudWatch agent) streams logs to CloudWatch Logs in near real-time, enabling centralized analysis. Option A (lifecycle hooks) is not sufficient for streaming logs to CloudWatch; it only helps with final log delivery on instance termination but doesn't provide real-time streaming. Option D (SQS) adds unnecessary complexity; CloudWatch agent can directly stream logs. Option E (S3) is not needed when using CloudWatch Logs.
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.
- ✗
Use the CloudWatch agent with the auto-scaling group lifecycle hooks
Why it's wrong here
Lifecycle hooks can help drain but agent streaming is already covered by A.
- ✓
Mount an EFS volume to the instances for log storage
Why this is correct
Persistent storage ensures logs survive instance termination.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Install the CloudWatch Logs agent on each EC2 instance to stream logs to CloudWatch Logs
Why this is correct
Streams logs to CloudWatch Logs in real-time.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Configure the Auto Scaling group to send logs to Amazon S3 on instance termination
Why it's wrong here
Instance termination might not allow reliable upload.
- ✗
Use Amazon SQS to buffer log events before sending to CloudWatch Logs
Why it's wrong here
Adds unnecessary complexity and latency.
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.
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 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: Mount an EFS volume to the instances for log storage — Option B (EFS volume) ensures log persistence even if an instance fails, because EFS is a shared, durable file system. Option C (CloudWatch agent) streams logs to CloudWatch Logs in near real-time, enabling centralized analysis. Option A (lifecycle hooks) is not sufficient for streaming logs to CloudWatch; it only helps with final log delivery on instance termination but doesn't provide real-time streaming. Option D (SQS) adds unnecessary complexity; CloudWatch agent can directly stream logs. Option E (S3) is not needed when using CloudWatch Logs.
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
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Last reviewed: Jun 20, 2026
This SAP-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 SAP-C02 exam.
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