AWS Certified Solutions Architect – Associate (SAA-C03) — Question 696
A company has an application that delivers on-demand training videos to students around the world. The application also allows authorized content developers to upload videos. The data is stored in an Amazon S3 bucket in the us-east-2 Region.
The company has created an S3 bucket in the eu-west-2 Region and an S3 bucket in the ap-southeast-1 Region. The company wants to replicate the data to the new S3 buckets. The company needs to minimize latency for developers who upload videos and students who stream videos near eu-west-2 and ap-southeast-1.
Which combination of steps will meet these requirements with the FEWEST changes to the application? (Choose two.)
Answer options
- A. Configure one-way replication from the us-east-2 S3 bucket to the eu-west-2 S3 bucket. Configure one-way replication from the us-east-2 S3 bucket to the ap-southeast-1 S3 bucket.
- B. Configure one-way replication from the us-east-2 S3 bucket to the eu-west-2 S3 bucket. Configure one-way replication from the eu-west-2 S3 bucket to the ap-southeast-1 S3 bucket.
- C. Configure two-way (bidirectional) replication among the S3 buckets that are in all three Regions.
- D. Create an S3 Multi-Region Access Point. Modify the application to use the Amazon Resource Name (ARN) of the Multi-Region Access Point for video streaming. Do not modify the application for video uploads.
- E. Create an S3 Multi-Region Access Point. Modify the application to use the Amazon Resource Name (ARN) of the Multi-Region Access Point for video streaming and uploads.
Correct answer: C, E
Explanation
To minimize latency for both uploads and downloads across multiple regions, bidirectional replication (two-way) must be established among all three Amazon S3 buckets so that changes made in any region are synced globally. Additionally, creating an S3 Multi-Region Access Point and updating the application to use its ARN for both uploads and streaming routes traffic to the closest AWS Region automatically with minimal code changes. One-way replication or limiting the Multi-Region Access Point to streaming only would fail to optimize the upload path for content developers in other regions.