Which solutions will meet these requirements?

Explanations:

Enabling S3 Transfer Acceleration allows users to upload files faster by using Amazon CloudFront’s globally distributed edge locations. This reduces latency for users in Australia by routing their uploads to the nearest edge location before transferring the data to the S3 bucket in us-east-1, improving performance and reliability.

While configuring S3 buckets in multiple Regions and using Cross-Region Replication can enhance availability and durability, it does not improve the upload performance for users in Australia. Uploads would still be directed to the S3 bucket in us-east-1, which does not address the latency issues.

Using Amazon Route 53 with latency-based routing is not applicable for S3 uploads as S3 does not support multiple endpoints for uploads based on region selection. Users would still upload to the S3 bucket in us-east-1, and this method does not resolve the slow upload issue.

Configuring the app to break video files into chunks and using multipart uploads allows for more efficient data transfer. Multipart upload improves the chances of successful uploads by allowing retries of individual chunks rather than the whole file, which is beneficial for large file uploads from distant locations.

Adding random prefixes to the files before uploading does not affect upload performance. This approach may help with S3 performance issues related to listing objects but does not solve the latency or upload failures experienced by users in Australia.