Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 102 discussion

Answer and HOW-TO B. Install an AWS DataSync agent in the on-premises data center. E. Use AWS DataSync to create a suitable location configuration for the on-premises SFTP server. To automate the process of transferring the data from the on-premises SFTP server to an EC2 instance with an EFS file system, you can use AWS DataSync. AWS DataSync is a fully managed data transfer service that simplifies, automates, and accelerates transferring data between on-premises storage systems and Amazon S3, Amazon EFS, or Amazon FSx for Windows File Server. To use AWS DataSync for this task, you should first install an AWS DataSync agent in the on-premises data center. This agent is a lightweight software application that you install on your on-premises data source. The agent communicates with the AWS DataSync service to transfer data between the data source and target locations.

**A**. Launch the EC2 instance into the same Availability Zone as the EFS file system. Makes sense to have the instance in the same AZ the EFS storage is. **B**. Install an AWS DataSync agent in the on-premises data center. The DataSync with move the data to the EFS, which already uses the EC2 instance (see the info provided). No more things are required... C. Create a secondary Amazon Elastic Block Store (Amazon EBS) volume on the EC2 instance for the data. This secondary EBS volume isn't required... the data should be move on to EFS... D. Manually use an operating system copy command to push the data to the EC2 instance. Potentially possible (instead of A), BUT the "automate this task" premise goes against any "manually" action. So, we should keep A. E. Use AWS DataSync to create a suitable location configuration for the on-premises SFTP server. I don't get the relationship between DataSync and the configuration for SFTP "on-prem"! Nonsense. So, anwers are A&B

A, B for sure

Ans A,B - hint: "The server must be hosted on an Amazon EC2 instance that uses an Amazon Elastic File System (Amazon EFS) file system" then use DataSync on-prem

option E is not valid because AWS DataSync does not support SFTP as a location configuration. Instead, you would need to use AWS Transfer Family for SFTP transfers.

BE is correct

let DataSync work it all out - AWS DataSync can create a suitable location configuration for an on-premises SFTP server.

B and E is the most logical solution, launching the instance in the same AZ as the EFS is not cruicial, C and D negate the automation part and the part where it says that we need to use EFS.

I don't think E is correct. You create an EC2, and DataSync to migrate the NFS to EFS. That's it. You don't need to migrate anything on the on-presmise sftp server

A could be the right choice but here have to choose 2 options so alone with AB and with E it won't work so correct combination is BE

BE for sure

did think AB and now im thinking B and E. the questions and answers seem a bit vague like something is missing but have a look at the info on the AWS page. Use Datasync for migrations between NFS servers. Q: When do I use AWS DataSync and when do I use AWS Transfer Family? A: If you currently use SFTP to exchange data with third parties, AWS Transfer Family provides a fully managed SFTP, FTPS, FTP, and AS2 transfer directly into and out of Amazon S3, while reducing your operational burden. If you want an accelerated and automated data transfer between NFS servers, SMB file shares, Hadoop clusters, self-managed or cloud object storage, AWS Snowcone, Amazon S3, Amazon EFS, and Amazon FSx, you can use AWS DataSync. DataSync is ideal for customers who need online migrations for active data sets, timely transfers for continuously generated data, or replication for business continuity.

the questions says combinations of two steps, so AB makes more sense

AWS DataSync does not support SFTP

The most appropriate combination of steps to automate the task of migrating the on-premises SFTP server to an Amazon EC2 instance using Amazon EFS is: A. Launch the EC2 instance into the same Availability Zone as the EFS file system. E. Use AWS DataSync to create a suitable location configuration for the on-premises SFTP server. Explanation: A. Launching the EC2 instance into the same Availability Zone as the EFS file system ensures optimal performance and low-latency access to the file system. E. AWS DataSync can be used to automate and accelerate the transfer of data between on-premises systems and AWS. Creating a suitable location configuration for the on-premises SFTP server with AWS DataSync facilitates the migration process. Therefore, options A and E together provide an efficient and automated approach to migrate the data.

My choice is B and E. Data Sync is used to transfer data between on-premises and AWS. It is required to deploy AWS Data Sync Agent in on-premises and configure the location FROM/TO in AWS Data Sync.

Apparently it's not B, as it says: "Install" an AWS DataSync agent in the on-premises data center. You actually don't install it. You deploy it as a vm or EC2. So I guess it's the terminology that hints at "E"