SAA-C03 Q311 · Storage

Question

A company has multiple AWS accounts with applications deployed in the us-west-2 Region. Application logs are stored within Amazon S3 buckets in each account. The company wants to build a centralized log analysis solution that uses a single S3 bucket. Logs must not leave us-west-2, and the company wants to incur minimal operational overhead. Which solution meets these requirements and is MOST cost-effective?

Accepted Answer

**S3 Same-Region Replication (SRR)** satisfies every requirement:

1. **Centralized bucket**: SRR can replicate objects from multiple source S3 buckets (across different AWS accounts) into a single destination S3 bucket. This is exactly what the company needs for centralized log analysis.

2. **Logs stay in us-west-2**: Same-Region Replication, by definition, keeps data within the same AWS Region. There is zero risk of data leaving us-west-2.

3. **Minimal operational overhead**: SRR is a fully managed, native S3 feature. Once configured with replication rules and the proper IAM roles (including cross-account permissions on the destination bucket policy), replication happens automatically — no custom code, no cron jobs, no Lambda functions to maintain.

4. **Most cost-effective**: SRR char

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🏗️ Architecture

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