AWS Certified Solutions Architect Associate SAA-C03 Practice Question
A company must migrate 50 TB of data from its on-premises data center to an Amazon S3 bucket within 1 week. The company already has an internet connection and has a very limited budget. Which AWS service provides the lowest overall cost for completing this one-time transfer within the required timeframe?
Establish an AWS Direct Connect dedicated connection.
Upload the data using Amazon S3 Transfer Acceleration.
Use an AWS Snowball Edge Storage Optimized device.
AWS DataSync is charged at a flat per-gigabyte rate (about $0.0125/GB), so moving 50 TB costs roughly $656. Data transfer into AWS is free, so the company pays no additional network egress fees. A single DataSync task can fully utilize up to a 10 Gbps link, so the migration can finish in less than a week if at least ~1 Gbps is available. Snowball Edge Storage Optimized has a $1 800 on-demand job fee (≤ 100 TB) plus shipping, making it about three times more expensive for this data size. Direct Connect requires long lead times and monthly port fees, so it is neither fast nor cheap for a one-time job. S3 Transfer Acceleration adds per-GB acceleration charges and offers no cost advantage over DataSync for 50 TB.
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