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AWS Certified Developer - Associate · AWS
Select one answer.
Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.
The answer is NOT B. The question states "limit the ABILITY TO DOWNLOAD a file in the S3 bucket to PAID SUBS ONLY" If you choose B, it means that a paid sub can request the URL and then SHARE IT with non-paying customers. This will mean non-paying customers can DOWNLOAD the file using the URL. The answer should be C - this enforces the user who downloads the file is a paying customer.
B is the correct answer.
B. Generate a pre-signed object URL for the premier content file when a paid subscriber requests a download: This is the most appropriate solution. A pre-signed URL grants temporary access to a private object stored in S3. The URL can be generated programmatically, and its validity can be limited to a short duration. This approach allows only those who have been provided with the URL (paid subscribers, in this case) to download the specific content.