S3 Transfer Acceleration (S3TA)

What it is: A feature that can speed up transfers between clients on the internet and an S3 bucket by using AWS edge locations and the AWS global network.

What it’s for:

• Faster uploads/downloads over long distances (global users, large files).

Key ideas:

• Uses an accelerate endpoint (`s3-accelerate`).
• There is an additional S3TA transfer cost when acceleration is used effectively.

Exam cue (important):

• If AWS determines Transfer Acceleration is not likely faster than normal S3 transfer for a request, AWS does not charge the S3TA transfer fee for that transfer (and may bypass acceleration).

Hard words (English + IPA + Vietnamese meaning):

• *acceleration* /əkˌseləˈreɪʃn/: tăng tốc
• *edge location* /edʒ loʊˈkeɪʃn/: điểm biên (edge)
• *bypass* /ˈbaɪpæs/: bỏ qua

Child pages:

• S3TA Pricing & “No charge if not faster”
• S3TA Exam Notes (charges vs request/storage)