Which solution will meet this requirement with the LEAST operational overhead?
Create an Amazon S3 bucket in ap-northeast-1. Set up an Amazon CloudFront distribution in ap-northeast-1 that includes a CachingDisabled cache policy. Configure the S3 bucket as the origin. Download the software by using signed URLs.
Create an Amazon S3 bucket in ap-northeast-1. Create a second S3 bucket in the us-east-1 Region. Configure replication between the buckets. Set up an Amazon CloudFront distribution that uses ap-northeast-1 as the primary origin and us-east-1 as the secondary origin. Download the software by using signed URLs.
Create an Amazon S3 bucket in ap-northeast-1. Configure Amazon S3 Transfer Acceleration. Download the software by using the S3 Transfer Acceleration endpoint.
Create an Amazon S3 bucket in ap-northeast-1. Set up an Amazon CloudFront distribution. Configure the S3 bucket as the origin. Download the software by using signed URLs.
Explanations:
This option uses a CloudFront distribution with CachingDisabled, which disables caching and does not provide any benefit in reducing latency. It would lead to direct retrieval from the S3 bucket each time, thus increasing latency.
This option involves S3 replication across regions (ap-northeast-1 and us-east-1) and uses a CloudFront distribution with a secondary origin in us-east-1. This adds complexity and increases operational overhead by requiring S3 replication and managing multi-region setup.
S3 Transfer Acceleration speeds up transfers by using CloudFront’s globally distributed edge locations. However, it is not ideal for reducing latency when all servers are located remotely, as it may introduce additional overhead for regions far from the S3 bucket in ap-northeast-1.
Setting up an S3 bucket in ap-northeast-1 and using CloudFront with caching enabled is the best solution. CloudFront caches content at edge locations, reducing latency for downloads globally, with minimal operational overhead. This is the most efficient solution for reducing deployment latency.
I appraise that the answer is:
Create an Amazon S3 bucket in ap-northeast-1. Set up an Amazon CloudFront distribution. Configure the S3 bucket as the origin. Download the software by using signed URLs.