Reduce Latency of Objects in Amazon S3 Bucket

Correct Answer - B.

For objects stored in the Amazon S3 bucket, Amazon CloudFront can be used to achieve a very high GET performance.

Using Amazon CloudFront, users can access data locally with low latency & high throughput from the nearest POP.

Also, this results in a decrease in the number of read requests directly to Amazon S3 buckets.

Option A is incorrect as although this will lower latency for users accessing from buckets within the same region.

But this is not a cost-effective solution.

Option C is incorrect as although this will increase GET performance, this will not result in low latency for users.

Option D is incorrect as we need to add a prefix and not a suffix to the key names.

For more information on Performance Optimisation with Amazon S3, refer to the following URL-

https://docs.aws.amazon.com/AmazonS3/latest/dev/PerformanceOptimization.html

The best solution for reducing the latency of frequently accessed objects in an Amazon S3 bucket is to use Amazon CloudFront in front of the S3 bucket. This option is provided by option B in the given answers.

Amazon CloudFront is a content delivery network (CDN) that caches content at edge locations worldwide, which can significantly reduce the latency of accessing objects. CloudFront retrieves the object from the nearest edge location to the user's request, which reduces the latency of the request.

Option A, saving objects in separate buckets in each region, would provide some reduction in latency but would add complexity to the application and result in higher costs. In addition, it would not necessarily improve performance for all users globally.

Option C, increasing the number of prefixes in the S3 bucket, would not reduce latency but would make it more difficult to find and access specific objects in the bucket.

Option D, adding random suffixes to key names, would not reduce latency and could potentially make it more difficult to access objects in the bucket if the naming convention is not consistent.

Therefore, the best option for reducing the latency of frequently accessed objects in an S3 bucket is to use Amazon CloudFront in front of the S3 bucket.