MLS-C01 Data Engineering Practice Question
Which TWO AWS services can be used to transform data in a streaming fashion without using a persistent cluster? (Choose 2.)
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
✓
AWS Lambda
(Lambda) and Option D (Kinesis Data Analytics) are serverless streaming transformation services. Option A (Glue) is serverless but not low-latency streaming. Option B (EMR) requires a persistent cluster. Option E (Data Pipeline) is for batch.
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 Glue
Why it's wrong here
Glue streaming ETL still runs on a persistent cluster.
- ✗
Amazon EMR
Why it's wrong here
EMR requires a cluster of EC2 instances.
- ✓
AWS Lambda
Why this is correct
Lambda can process streaming data from Kinesis or DynamoDB Streams serverlessly.
- ✓
Amazon Kinesis Data Analytics
Why this is correct
Kinesis Data Analytics is a serverless service for real-time SQL transformations.
- ✗
AWS Data Pipeline
Why it's wrong here
Data Pipeline is a batch ETL 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 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.