Exam AWS Certified Solutions Architect - Professional SAP-C02 topic 1 question 186 discussion

A - Multi Region Access points are like a proxy. It can dynamically request traffic to the nearest S3 bucket (latency based). [1] B - Two way replication must be enabled to have data in sync. [1] E - Versioning must be enabled for Replication. [3] [1] https://aws.amazon.com/s3/features/multi-region-access-points/ [2] https://aws.amazon.com/about-aws/whats-new/2020/12/amazon-s3-replication-adds-support-two-way-replication/ [3] https://docs.aws.amazon.com/AmazonS3/latest/userguide/replication.html#two-way-replication-scenario:~:text=Both%20source%20and%20destination%20buckets%20must%20have%20versioning%20enabled.%20For%20more%20information%20about%20versioning%2C%20see%20Using%20versioning%20in%20S3%20buckets.

Cross Region Replication(CRR) requires versioning to be activated due to the way that data is replicated between S3 buckets. https://docs.aws.amazon.com/AmazonS3/latest/userguide/MultiRegionAccessPointRequestRouting.html https://stackoverflow.com/questions/60947157/aws-s3-replication-without-versioning#:~:text=The%20automated%20Same%20Region%20Replication,is%20replicated%20between%20S3%20buckets.

A, B, E

Reason as explained by everyone

ABE for sure

I only chosen E because the other options were not making much sense. I guess we need versioning in order to use two-way replication.

A. Create an S3 Multi-Region Access Point. - this gives you Single Endpoint for accessing S3 into multiple regions B. Configure CRR between the two S3 - For automatic replication to diffrent region E. Enable S3 Versioning on both S3 - Will give you an ability to track and recover from previous versions if needed C, D and F doesnt meet the criteria from LEAST operation overhead perspective.

If the reason for E is not obvious then read this: https://docs.aws.amazon.com/AmazonS3/latest/userguide/replication.html Both source and destination buckets must have versioning enabled.

Cross Region Replication(CRR) requires versioning to be activated due to the way that data is replicated between S3 buckets. https://docs.aws.amazon.com/AmazonS3/latest/userguide/MultiRegionAccessPointRequestRouting.html https://stackoverflow.com/questions/60947157/aws-s3-replication-without-versioning#:~:text=The%20automated%20Same%20Region%20Replication,is%20replicated%20between%20S3%20buckets.

Answer is A B E

Answer : A,B,E