Quick Answer
The answer is AWS Step Functions, as it is the correct service to orchestrate an Amazon EMR daily ETL job with failure notifications. Step Functions excels at coordinating complex, multi-step workflows, allowing you to define a state machine that sequentially runs EMR steps, handles retries, and integrates directly with Amazon SNS to send email alerts on failure. On the AWS Certified Data Engineer Associate DEA-C01 exam, this question tests your understanding of orchestration versus simple event triggering—a common trap is confusing EventBridge or CloudWatch Events, which can trigger a single action but cannot manage the conditional logic and step dependencies required for an ETL pipeline. Remember that Step Functions is the workflow orchestrator, not just a trigger. A helpful memory tip: think of Step Functions as the “conductor” of your ETL orchestra, directing each EMR step and sounding the alarm (SNS) if a musician fails.
This DEA-C01 practice question tests your understanding of data operations and support. 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.
A data engineer needs to schedule a daily ETL job that runs on Amazon EMR. The job should be triggered automatically and send an email on failure. Which AWS service should the engineer use to orchestrate the job?
Amazon EventBridge
Why wrong: Event bus, not orchestrator.
AWS Step Functions
Orchestrates EMR steps and integrates with SNS.
Amazon Simple Queue Service (SQS)
Why wrong: Message queue, not orchestrator.
Amazon CloudWatch Events
Why wrong: Can trigger but not orchestrate.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
AWS Step Functions
Option A is correct because AWS Step Functions can orchestrate EMR steps and integrate with Amazon SNS for notifications. Option B is wrong because Amazon CloudWatch Events can trigger Lambda but not directly orchestrate EMR steps. Option C is wrong because Amazon SQS is a message queue. Option D is wrong because Amazon EventBridge can trigger but not orchestrate complex workflows.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Amazon EventBridge
Why it's wrong here
Event bus, not orchestrator.
AWS Step Functions
Why this is correct
Orchestrates EMR steps and integrates with SNS.
Related concept
Read the scenario before looking for a memorised answer.
Amazon Simple Queue Service (SQS)
Why it's wrong here
Message queue, not orchestrator.
Amazon CloudWatch Events
Why it's wrong here
Can trigger but not orchestrate.
Common exam traps
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
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
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 Operations and Support — study guide chapter
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FAQ
Data Operations and Support — This question tests Data Operations and Support — Read the scenario before looking for a memorised answer..
The correct answer is: AWS Step Functions — Option A is correct because AWS Step Functions can orchestrate EMR steps and integrate with Amazon SNS for notifications. Option B is wrong because Amazon CloudWatch Events can trigger Lambda but not directly orchestrate EMR steps. Option C is wrong because Amazon SQS is a message queue. Option D is wrong because Amazon EventBridge can trigger but not orchestrate complex workflows.
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.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
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.
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