SAA-C03 Q112 · Scaling

Question

A company is developing a social media application that must scale to meet demand spikes and handle ordered processes. Which AWS services meet these requirements?

Accepted Answer

**Answer A: ECS with Fargate + RDS + SQS** satisfies every requirement:

1. **Scale to meet demand spikes**: ECS with Fargate provides serverless container orchestration. Fargate auto-scales containers without managing EC2 instances, making it ideal for unpredictable social media traffic spikes.

2. **Handle ordered processes**: **Amazon SQS FIFO queues** guarantee exactly-once processing and strict message ordering. This is critical for social media operations like post feeds, comment threads, or activity timelines where event order matters.

3. **Decoupling**: SQS acts as a buffer between producers (API/web tier) and consumers (processing tier). During traffic spikes, messages queue up instead of overwhelming downstream services. Consumers process at their own pace.

4. **RDS**: Provides

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