Exam AWS Certified Solutions Architect - Associate SAA-C02 topic 1 question 451 discussion

A https://aws.amazon.com/datasync/?whats-new-cards.sort-by=item.additionalFields.postDateTime&whats-new-cards.sort-order=desc What happens if an AWS DataSync task is interrupted? A: If a task is interrupted, for instance, if the network connection goes down or the AWS DataSync agent is restarted, the next run of the task will transfer missing files, and the data will be complete and consistent at the end of this run. When do I use AWS DataSync and when do I use AWS Snowball Edge? A: AWS DataSync is ideal for online data transfers. You can use DataSync to migrate active data to AWS, transfer data to the cloud for analysis and processing, archive data to free up on-premises storage capacity, or replicate data to AWS for business continuity. AWS Snowball Edge is ideal for offline data transfers, for customers who are bandwidth constrained, or transferring data from remote, disconnected, or austere environments.

Keyword: a solution to handle the ongoing data transfer between the on-premises shared file system and Amazon S3 I'll go with A DataSync

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DataSync is ONLINE migration and question mentioned need sync while migration in progress. A is right choice.

Using AWS Snowball Edge Storage to manage continuous data transfer from on-premises to Amazon S3 does not sound efficient and logical AWS DataSync is the Righ answer to this one, Why? 1. Can move large amount of data from on-premises to AWS 2. Can synchronize to Amazon S3 (any storage classes – including Glacier), Amazon EFS, Amazon FSx for Windows

A https://aws.amazon.com/blogs/storage/best-practices-for-accelerating-data-migrations-using-aws-snowball-edge/#:~:text=Whenever%20you%20have%20available%20connectivity%20between%20your%20location%20and%20AWS%2C%20you%20should%20first%20explore%20online%20transfer%20methods%20using%20AWS%20DataSync%2C%20the%20AWS%20CLI%2C%20or%20alternative%20transfer%20methods.

A is correct.

Answer is A due to online data transfer.

The organization is using a cloud-based analytics solution to derive insights from this data on an hourly basis. Due to brief gaps in internet access, the organization needs a solution to manage hundreds of terabytes of data transfer to S3. AWS Snowball Edge Storage Optimized can elaborate locally the data avoiding massive data transfer.

AWS Datasync has targets of EFS,S3 and FSx for Windows. S3 Transfer has S3 and EFS as endpoints. C-Snowball Edge Storage/Compute Optimised are used for physically moving into/out of S3(only SNowcone has AWS Datasync inbuilt) B-"AWS Migration Hub provides a single location to track the progress of application migrations across multiple AWS and partner solutions." Confused between A and D. Perhaps Datasync due to this specific FAQ on Internet loss: https://aws.amazon.com/datasync/faqs/ What happens if an AWS DataSync task is interrupted? A: If a task is interrupted, for instance, if the network connection goes down or the AWS DataSync agent is restarted, the next run of the task will transfer missing files, and the data will be complete and consistent at the end of this run. Each time a task is started it performs an incremental copy, transferring only the changes from the source to the destination.

why not snowball ??

AWS DataSync is an online data transfer service that simplifies, automates, and accelerates moving data between on-premises storage systems and AWS Storage services, as well as between AWS Storage services. You can use DataSync to migrate active datasets to AWS, archive data to free up on-premises storage capacity, replicate data to AWS for business continuity, or transfer data to the cloud for analysis and processing. A is the answer

FAQ: Q: What happens if an AWS DataSync task is interrupted? A: If a task is interrupted, for instance, if the network connection goes down or the AWS DataSync agent is restarted, the next run of the task will transfer missing files, and the data will be complete and consistent at the end of this run. Each time a task is started it performs an incremental copy, transferring only the changes from the source to the destination. https://aws.amazon.com/datasync/faqs/ Ans: A

Answer is A