Topic 1 Question 680
A solutions architect needs to copy files from an Amazon S3 bucket to an Amazon Elastic File System (Amazon EFS) file system and another S3 bucket. The files must be copied continuously. New files are added to the original S3 bucket consistently. The copied files should be overwritten only if the source file changes.
Which solution will meet these requirements with the LEAST operational overhead?
Create an AWS DataSync location for both the destination S3 bucket and the EFS file system. Create a task for the destination S3 bucket and the EFS file system. Set the transfer mode to transfer only data that has changed.
Create an AWS Lambda function. Mount the file system to the function. Set up an S3 event notification to invoke the function when files are created and changed in Amazon S3. Configure the function to copy files to the file system and the destination S3 bucket.
Create an AWS DataSync location for both the destination S3 bucket and the EFS file system. Create a task for the destination S3 bucket and the EFS file system. Set the transfer mode to transfer all data.
Launch an Amazon EC2 instance in the same VPC as the file system. Mount the file system. Create a script to routinely synchronize all objects that changed in the origin S3 bucket to the destination S3 bucket and the mounted file system.
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AWS DataSync (Option A): AWS DataSync is designed for efficient and reliable copying of data between different storage solutions. By setting up an AWS DataSync task with the transfer mode set to transfer only data that has changed, you ensure that only the new or modified files are copied. This minimizes data transfer and operational overhead.
👍 4meenkaza2023/12/29- 正解だと思う選択肢: A
ans: A
👍 2cciesam2023/12/30 - 正解だと思う選択肢: A
Transfer only data that has changed – DataSync copies only the data and metadata that differs between the source and destination location.
Transfer all data – DataSync copies everything in the source to the destination without comparing differences between the locations.
https://docs.aws.amazon.com/datasync/latest/userguide/configure-metadata.html
(B would work too but is more "operational overhead.")
👍 2pentium752024/01/03
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