- A
Configure S3 event notifications on the log file destination to send an alert.
Why wrong: Logs are not stored in S3 by default; this is not applicable.
- B
Subscribe a Lambda function to the log group and have it check for the error message.
Why wrong: Possible but more complex than using metric filter and alarm.
- C
Create a metric filter on the log group for the error message and set up a CloudWatch alarm on the metric.
Metric filters convert log events into metrics, and alarms can trigger notifications.
- D
Use CloudWatch Logs Insights to run a query periodically and send results via email.
Why wrong: This is for ad-hoc analysis, not real-time alerting.
Question 1,020 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. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 uses Amazon CloudWatch Logs to collect application logs. The operations team wants to be notified when a specific error message appears in the logs. What is the SIMPLEST way to achieve this?
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
✓
Create a metric filter on the log group for the error message and set up a CloudWatch alarm on the metric.
The simplest way to notify when a specific error message appears in CloudWatch Logs is to create a metric filter on the log group for the error message, then set up a CloudWatch alarm on that metric. This is native, requires no custom code, and provides real-time alerting. Option A is incorrect because S3 event notifications apply to S3 objects, not CloudWatch Logs content. Option B is incorrect because subscribing a Lambda function is more complex than using a metric filter and alarm. Option D is incorrect because CloudWatch Logs Insights queries are not real-time and require manual or scheduled execution.
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.
- ✗
Configure S3 event notifications on the log file destination to send an alert.
Why it's wrong here
Logs are not stored in S3 by default; this is not applicable.
- ✗
Subscribe a Lambda function to the log group and have it check for the error message.
Why it's wrong here
Possible but more complex than using metric filter and alarm.
- ✓
Create a metric filter on the log group for the error message and set up a CloudWatch alarm on the metric.
Why this is correct
Metric filters convert log events into metrics, and alarms can trigger notifications.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use CloudWatch Logs Insights to run a query periodically and send results via email.
Why it's wrong here
This is for ad-hoc analysis, not real-time alerting.
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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Continuous Improvement for Existing Solutions practice questions
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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: Create a metric filter on the log group for the error message and set up a CloudWatch alarm on the metric. — The simplest way to notify when a specific error message appears in CloudWatch Logs is to create a metric filter on the log group for the error message, then set up a CloudWatch alarm on that metric. This is native, requires no custom code, and provides real-time alerting. Option A is incorrect because S3 event notifications apply to S3 objects, not CloudWatch Logs content. Option B is incorrect because subscribing a Lambda function is more complex than using a metric filter and alarm. Option D is incorrect because CloudWatch Logs Insights queries are not real-time and require manual or scheduled execution.
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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