DEA-C01 Data Ingestion and Transformation Practice Question
This DEA-C01 practice question tests your understanding of data ingestion and transformation. 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 is ingesting log files from EC2 instances into CloudWatch Logs and then wants to deliver them to S3 for long-term storage and analysis. The data engineer needs to ensure the logs are delivered to S3 within 5 minutes of being generated. Which approach meets this requirement?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use CloudWatch Logs subscription filter with Kinesis Data Firehose to deliver to S3
Option A (Use CloudWatch Logs subscription filter with Kinesis Data Firehose to deliver to S3) is correct because Firehose can deliver to S3 with low latency (typically <1 minute). Option B (CloudWatch Logs export to S3) is a batch process that can take hours. Option C (Use a Lambda function to read from CloudWatch Logs and write to S3) is slower and less reliable. Option D (Use CloudWatch Logs Insights) is for querying, not delivery.
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 a CloudWatch Logs metric filter and invoke a Lambda function to write to S3
Why it's wrong here
This adds latency and complexity; not as reliable as Firehose.
✗
Use CloudWatch Logs Insights to query logs and save results to S3
Why it's wrong here
Insights is for ad-hoc queries, not real-time delivery.
✓
Use CloudWatch Logs subscription filter with Kinesis Data Firehose to deliver to S3
Why this is correct
Firehose can deliver to S3 within minutes.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use the CloudWatch Logs export to S3 feature
Why it's wrong here
Export is a batch operation that can take hours.
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 DEA-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.
Data Ingestion and Transformation — This question tests Data Ingestion and Transformation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use CloudWatch Logs subscription filter with Kinesis Data Firehose to deliver to S3 — Option A (Use CloudWatch Logs subscription filter with Kinesis Data Firehose to deliver to S3) is correct because Firehose can deliver to S3 with low latency (typically <1 minute). Option B (CloudWatch Logs export to S3) is a batch process that can take hours. Option C (Use a Lambda function to read from CloudWatch Logs and write to S3) is slower and less reliable. Option D (Use CloudWatch Logs Insights) is for querying, not delivery.
What should I do if I get this DEA-C01 question wrong?
Identify which DEA-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.
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 →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This DEA-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 DEA-C01 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.