SAA-C03 Q373 · Storage

Question

An ecommerce company hosts an analytics application on AWS. The company deployed the application to one AWS Region. The application generates 300 MB of data each month. The application stores the data in JSON format. The data must be accessible in milliseconds when needed. The company must retain the data for 30 days. The company requires a disaster recovery solution to back up the data. Which solution will meet these requirements?

Accepted Answer

Let's match each requirement against Option B:

1. **300 MB/month of JSON data** — This is a very small amount of data. S3 is perfectly suited for storing structured/semi-structured data like JSON files. No need for a database engine or search cluster for this volume.

2. **Millisecond access** — Amazon S3 Standard storage class provides **first-byte latency of milliseconds**. This directly satisfies the millisecond accessibility requirement.

3. **30-day retention** — S3 Lifecycle policies can be configured to automatically **expire (delete) objects after 30 days**. This is a native, fully managed capability requiring no custom logic.

4. **Disaster recovery with backup** — S3 Cross-Region Replication (CRR) automatically replicates objects from the primary bucket to a bucket in a second R

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