This MLS-C01 practice question tests your understanding of data engineering. 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 an AWS Glue ETL job to run every hour. Which service should be used to trigger the job?
AWS Lambda
Why wrong: Lambda can invoke Glue but requires its own scheduling.
AWS Step Functions
Why wrong: Step Functions is for state machines, not simple schedule triggers.
Amazon CloudWatch Events (EventBridge)
EventBridge can schedule cron jobs to trigger Glue.
AWS Data Pipeline
Why wrong: Data Pipeline is for complex ETL orchestration, not simple scheduling.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Amazon CloudWatch Events (EventBridge)
Option B is correct because Amazon CloudWatch Events (EventBridge) can trigger Glue jobs on a schedule. Option A is wrong because Lambda can trigger Glue but is not a scheduler; Option C is wrong because Data Pipeline is for complex workflows; Option D is wrong because Step Functions is for state machines, not simple scheduling.
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.
AWS Lambda
Why it's wrong here
Lambda can invoke Glue but requires its own scheduling.
AWS Step Functions
Why it's wrong here
Step Functions is for state machines, not simple schedule triggers.
Amazon CloudWatch Events (EventBridge)
Why this is correct
EventBridge can schedule cron jobs to trigger Glue.
Related concept
Read the scenario before looking for a memorised answer.
AWS Data Pipeline
Why it's wrong here
Data Pipeline is for complex ETL orchestration, not simple scheduling.
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 MLS-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.
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FAQ
Data Engineering — This question tests Data Engineering — Read the scenario before looking for a memorised answer..
The correct answer is: Amazon CloudWatch Events (EventBridge) — Option B is correct because Amazon CloudWatch Events (EventBridge) can trigger Glue jobs on a schedule. Option A is wrong because Lambda can trigger Glue but is not a scheduler; Option C is wrong because Data Pipeline is for complex workflows; Option D is wrong because Step Functions is for state machines, not simple scheduling.
Identify which MLS-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 MLS-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 MLS-C01 exam.
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