A startup replicates data nightly from an Amazon S3 bucket in the US East (N. Virginia) Region (us-east-1) to another bucket in the Europe (Ireland) Region (eu-west-1) for disaster-recovery purposes. Which statement correctly describes the data transfer charges that will be incurred for this replication activity?
All inter-Region transfers between Amazon S3 buckets are always free under the AWS Free Tier.
Standard inter-Region data transfer charges apply to the data leaving us-east-1 when it is copied to eu-west-1.
Data transfer fees are assessed only on the destination Region that receives the data.
There are no data transfer charges because the traffic remains on the AWS global backbone.
AWS classifies traffic that leaves one Region and enters another as data transfer between Regions (DTIR). Outbound data from the source Region is charged at that Region's inter-Region rate, whereas inbound data to the destination Region is free. Therefore, every gigabyte replicated from us-east-1 to eu-west-1 is billed at the published inter-Region rate for data leaving us-east-1. There is no additional charge on the receiving side, and the Free Tier does not waive these fees except for the first 100 GB per month of total outbound traffic across all services.
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