easyMultiple ChoiceObjective-mapped
MLA-C01 Practice Question: A company uses Amazon Rekognition to moderate…
A company uses Amazon Rekognition to moderate user-generated images. They want to set up a monitoring system that alerts the team if the number of inappropriate images flagged by the model exceeds a threshold. Which combination of AWS services should they use?
⚠ Common exam trap
Test-takers frequently confuse AWS Config (which tracks infrastructure changes) with monitoring model outputs, or assume CloudWatch Logs metric filters can directly capture Rekognition inference results without custom logging logic.
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 CloudWatch to publish custom metrics and create an alarm, and AWS Lambda to process images and publish metrics.
Amazon Rekognition can be integrated with AWS Lambda to process images and publish custom metrics to Amazon CloudWatch. CloudWatch can then create an alarm based on a threshold for the number of inappropriate images flagged, and trigger an SNS notification to alert the team. This combination provides a complete monitoring and alerting pipeline without relying on inference logs or resource configuration changes.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon CloudWatch Logs to store inference logs and create a metric filter.
Why it's wrong here
Metric filters on logs can create alarms, but the scenario requires custom metrics, not logs.
- ✓
Amazon CloudWatch to publish custom metrics and create an alarm, and AWS Lambda to process images and publish metrics.
Why this is correct
Lambda can publish custom metrics to CloudWatch, which can trigger alarms.
- ✗
AWS Config to track resource changes and trigger an SNS notification.
Why it's wrong here
Config is for resource configuration changes.
- ✗
Amazon Simple Notification Service (SNS) to send alerts when threshold is exceeded.
Why it's wrong here
SNS is a notification service, not a monitoring service.
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 |
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.