SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
A company is planning to migrate a web application to AWS. The application currently runs on a single on-premises server with a few thousand users. The company wants to use a managed container service and minimize operational overhead. Which AWS service should the company use to run the application?
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 ECS with AWS Fargate
Amazon ECS with AWS Fargate is a managed container service that eliminates the need to manage underlying EC2 instances, reducing operational overhead. Option A (Amazon EKS) is wrong because it is Kubernetes-based and more complex to manage, which does not align with minimizing operational overhead. Option B (AWS Lambda) is wrong because it is designed for short-running functions, not for running a web application as a container. Option C (Amazon EC2) is wrong because it requires manual management of instances and containers, increasing operational overhead.
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 EKS
Why it's wrong here
Amazon EKS introduces the overhead of managing a Kubernetes control plane and worker nodes, contradicting the requirement to minimise operational overhead for a small-scale application with a few thousand users. It is tempting because EKS is a managed container service, but its complexity is justified only when orchestrating large, distributed microservices that need advanced scaling and self-healing, not for a simple single-server workload.
- ✗
AWS Lambda
Why it's wrong here
Lambda is for event-driven, short functions, not web apps.
- ✗
Amazon EC2
Why it's wrong here
EC2 requires managing instances and scaling.
- ✓
Amazon ECS with AWS Fargate
Why this is correct
Fargate is serverless, reduces operational overhead.
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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