A global application currently reads and writes to S3 buckets in three separate AWS Regions, with Cross-Region Replication keeping the buckets' contents in sync. Users worldwide connect to whichever bucket's Regional endpoint their client is hardcoded to use, and a Regional outage requires a manual, error-prone DNS change to redirect traffic. Which S3 feature provides a single global endpoint that automatically routes each request to the nearest healthy bucket replica, with controls to shift traffic away from a disrupted Region?
- An S3 Access Point scoped to each Region
- S3 Transfer Acceleration enabled on each bucket
- S3 Storage Lens configured for the organization
- An S3 Multi-Region Access Point, which uses AWS Global Accelerator to route requests to the closest bucket with an active routing status and supports failover controls
Why D? And why not the others?
Correct answer: D. An S3 Multi-Region Access Point, which uses AWS Global Accelerator to route requests to the closest bucket with an active routing status and supports failover controls
An S3 Multi-Region Access Point provides exactly one global endpoint that applications can use to reach S3 buckets located in multiple AWS Regions; requests made to that endpoint use AWS Global Accelerator to route automatically over the AWS global network to the bucket replica with the closest proximity and an active routing status, rather than requiring clients to be hardcoded to a specific Region. When a Regional traffic disruption occurs, Multi-Region Access Points failover controls let an operator shift request traffic away from the affected Region within minutes, which is exactly the manual, error-prone DNS problem described. An S3 Access Point scoped to a single Region is still bound to one specific bucket in one Region; creating one per Region does not produce a single global endpoint or any automatic nearest-Region routing or failover behaviour, leaving clients to solve that routing problem themselves. S3 Transfer Acceleration only speeds up a single upload or download to one specific bucket by routing it through the nearest CloudFront edge location onto AWS's backbone; it does not provide a unified multi-bucket endpoint or any failover mechanism between Regions. S3 Storage Lens only produces usage and activity metrics dashboards across accounts and Regions; it has no request-routing capability and cannot serve as an endpoint applications connect to at all.
Source: AWS S3 documentation: Managing multi-Region traffic with Multi-Region Access Points — single global endpoint via AWS Global Accelerator and failover controls