AWS Certified Solutions Architect – Associate (SAA-C03) — Question 434

A company is storing 700 terabytes of data on a large network-attached storage (NAS) system in its corporate data center. The company has a hybrid environment with a 10 Gbps AWS Direct Connect connection.

After an audit from a regulator, the company has 90 days to move the data to the cloud. The company needs to move the data efficiently and without disruption. The company still needs to be able to access and update the data during the transfer window.

Which solution will meet these requirements?

Answer options

• A. Create an AWS DataSync agent in the corporate data center. Create a data transfer task Start the transfer to an Amazon S3 bucket.
• B. Back up the data to AWS Snowball Edge Storage Optimized devices. Ship the devices to an AWS data center. Mount a target Amazon S3 bucket on the on-premises file system.
• C. Use rsync to copy the data directly from local storage to a designated Amazon S3 bucket over the Direct Connect connection.
• D. Back up the data on tapes. Ship the tapes to an AWS data center. Mount a target Amazon S3 bucket on the on-premises file system.

Correct answer: A

Explanation

AWS DataSync is designed for fast, secure, and automated online data transfers, making it ideal for utilizing the 10 Gbps AWS Direct Connect connection while allowing active reads and writes during migration. Offline methods like AWS Snowball Edge (Option B) or physical tapes (Option D) do not support real-time data updates during transit. Standard tools like rsync (Option C) lack the performance optimizations, built-in scheduling, and automatic verification provided by AWS DataSync for a migration of this scale.