SAA-C03 Q230 · Serverless

Question

A company is developing a microservices-based application to manage the company's delivery operations. The application consists of microservices that process orders, manage a fleet of delivery vehicles, and optimize delivery routes. The microservices must be able to scale independently and must be able to handle bursts of traffic without any data loss. Which solution will meet these requirements with the LEAST operational overhead?

Accepted Answer

Answer B satisfies every requirement:

1. **Independent scaling**: Amazon SQS decouples microservices so each can scale independently. Each microservice reads from its own queue and scales based on queue depth, not on the throughput of other services.

2. **Handle bursts without data loss**: SQS is a fully managed message queue that **durably stores messages** until they are processed. During traffic bursts, messages accumulate in the queue rather than being dropped. SQS can handle virtually unlimited throughput, so no messages are lost even under extreme load spikes.

3. **Least operational overhead**: 
   - **Amazon ECS on AWS Fargate** is a serverless container platform — no EC2 instances to provision, patch, or manage. AWS handles the underlying infrastructure.
   - **Amazon SQS** is f

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📘 Key Concepts

🏗️ Architecture

⚙️ Operations

💰 Cost

🔒 Security

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