A VPC contains multiple VPC endpoints for Amazon S3. A developer needs an S3 bucket policy that ensures access to the bucket is allowed only when requests come through those VPC endpoints. Which solution satisfies this requirement?

The correct solution is to create one S3 bucket policy that lists all VPC endpoint IDs in the aws:SourceVpce condition using StringNotEquals. This ensures that access is explicitly denied unless the request originates from one of the specified VPC endpoints. The aws:SourceVpce condition key checks the specific VPC endpoint ID. Incorrect options: Creating multiple S3 bucket policies, each with a single VPC endpoint ID, would not work as S3 evaluates all policies, and a single allow would grant access. Using aws:SourceVpc with StringNotEquals and the VPC ID would restrict access to the entire VPC, but it wouldn't guarantee that the request came through a VPC endpoint, as direct internet access from within the VPC might still be possible if not otherwise restricted. Using a wildcard like vpce with aws:SourceVpce is not supported for this condition key and would not correctly identify the specific endpoints.