- A
AWS Lambda
Why wrong: Lambda can be triggered by EventBridge but is not itself a scheduling service.
- B
AWS Step Functions
Why wrong: Step Functions orchestrates workflows but requires a trigger (e.g., EventBridge) for scheduling.
- C
Amazon SQS
Why wrong: SQS is a message queue, not a scheduler.
- D
Amazon EventBridge
EventBridge provides scheduled events using cron or rate expressions.
Question 835 of 1,000
MLA-C01 Practice Question: ML Solution Monitoring, Maintenance, and Security
This MLA-C01 practice question tests your understanding of ml solution monitoring, maintenance, and security. 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.
An organization wants to schedule a retraining pipeline to run every Sunday night. Which AWS service should they use to trigger the pipeline on a schedule?
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
✓
Amazon EventBridge
Amazon EventBridge is the correct choice because it provides a scheduled event source using cron or rate expressions to trigger target services at specified times, such as every Sunday night. It can directly invoke an AWS Step Functions state machine or a Lambda function to start the retraining pipeline, making it the native scheduling service for event-driven workflows in AWS.
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.
- ✗
AWS Lambda
Why it's wrong here
Lambda can be triggered by EventBridge but is not itself a scheduling service.
- ✗
AWS Step Functions
Why it's wrong here
Step Functions orchestrates workflows but requires a trigger (e.g., EventBridge) for scheduling.
- ✗
Amazon SQS
Why it's wrong here
SQS is a message queue, not a scheduler.
- ✓
Amazon EventBridge
Why this is correct
EventBridge provides scheduled events using cron or rate expressions.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse AWS Lambda's ability to be triggered by a schedule with Lambda itself being a scheduling service, but Lambda is only the compute target, not the scheduler — EventBridge is the service that provides the scheduled trigger.
Detailed technical explanation
How to think about this question
EventBridge uses a cron expression (e.g., 'cron(0 0 ? * SUN *)') or a rate expression (e.g., 'rate(7 days)') to define the schedule, and it supports timezone customization via the 'eventTime' parameter. Under the hood, EventBridge evaluates the schedule against UTC time by default, so you must adjust the cron expression to match the desired local time zone, such as using 'cron(0 5 ? * SUN *)' for 5 AM UTC if the pipeline should run at midnight Eastern Time. This is critical for retraining pipelines that depend on data freshness windows or compliance with business hours.
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.
TExam Day Tips
- 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 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.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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ML Solution Monitoring, Maintenance, and Security — study guide chapter
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FAQ
Questions learners often ask
What does this MLA-C01 question test?
ML Solution Monitoring, Maintenance, and Security — This question tests ML Solution Monitoring, Maintenance, and Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Amazon EventBridge — Amazon EventBridge is the correct choice because it provides a scheduled event source using cron or rate expressions to trigger target services at specified times, such as every Sunday night. It can directly invoke an AWS Step Functions state machine or a Lambda function to start the retraining pipeline, making it the native scheduling service for event-driven workflows in AWS.
What should I do if I get this MLA-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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 →
Last reviewed: Jul 4, 2026
This MLA-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 MLA-C01 exam.
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