Services to Optimize Data Transfer to Amazon S3 Bucket

Correct Answer - A.

S3 Transfer Acceleration can optimise performance for data transfer between users & objects in Amazon S3 bucket.

Transfer acceleration uses CloudFront edge location to provide accelerated data transfer to users.

Option B is incorrect as Amazon CloudFront Put/Post commands can be used for small-sized objects but for large-sized data objects, S3 Transfer Acceleration provides better performance.

Option C is incorrect as users should use Multipart uploads for all data objects exceeding 100 megabytes.

But for better performance, S3 transfer acceleration should be enabled.

Option D is incorrect as for global users accessing S3 bucket, S3 Transfer Acceleration is a better choice.

For more information on Amazon S3 Transfer Acceleration, refer to the following URLs:

https://aws.amazon.com/s3/faqs/#s3ta https://docs.aws.amazon.com/AmazonS3/latest/dev/optimizing-performance.html

The service that can be used to optimize performance for global users to transfer large-sized data objects to a centralized Amazon S3 bucket in us-west-1 region is:

A. Enable S3 Transfer Acceleration on Amazon S3 bucket.

Amazon S3 Transfer Acceleration is a service that enables fast, easy, and secure transfers of files over long distances between a client and an S3 bucket. With this service, Amazon S3 utilizes the globally distributed Amazon CloudFront network to accelerate transfers to and from S3 buckets. When a user uploads data to an S3 bucket through S3 Transfer Acceleration, the data is first routed to the closest Amazon CloudFront edge location. From there, it is sent to the S3 bucket over an optimized network path.

This service is ideal for transferring large files, as it provides an optimized network path for data transfer, reducing the time required for data transmission. It also helps to ensure that data is transmitted securely.

B. Amazon CloudFront Put/Post commands

Amazon CloudFront is a content delivery network (CDN) service that can be used to distribute content to users worldwide. However, it does not provide direct upload capabilities to Amazon S3. CloudFront can be used to distribute content, but the content must first be uploaded to S3 using other methods. So, this option is not suitable for the given scenario.

C. Multipart upload

Multipart upload is a feature of Amazon S3 that enables faster, more reliable uploads of large objects. It breaks up large files into smaller parts, which are uploaded in parallel. This feature is useful when uploading files larger than 100 MB. However, it does not help in optimizing the transfer of files to a centralized Amazon S3 bucket in us-west-1 region.

D. Amazon ElastiCache

Amazon ElastiCache is a web service that makes it easy to deploy and run an in-memory cache in the cloud. It is used to improve the performance of web applications by caching frequently accessed data in memory. However, it is not related to optimizing the transfer of large-sized data objects to a centralized Amazon S3 bucket in us-west-1 region.

In summary, the correct answer is A. Enable S3 Transfer Acceleration on Amazon S3 bucket.