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Amazon Web Services AWS Certified Solutions Architect - Associate (SAA-C03) SAA-C03 Question # 60 Topic 7 Discussion

Amazon Web Services AWS Certified Solutions Architect - Associate (SAA-C03) SAA-C03 Question # 60 Topic 7 Discussion

SAA-C03 Exam Topic 7 Question 60 Discussion:
Question #: 60
Topic #: 7

A company hosts an application on AWS that stores files that users need to access. The application uses two Amazon EC2 instances. One instance is in Availability Zone A, and the second instance is in Availability Zone B. Both instances use Amazon Elastic Block Store (Amazon EBS) volumes. Users must be able to access the files at any time without delay. Users report that the two instances occasionally contain different versions of the same file. Users occasionally receive HTTP 404 errors when they try to download files. The company must address the customer issues. The company cannot make changes to the application code. Which solution will meet these requirements in the MOST operationally efficient way?


A.

Run the robocopy command on one of the EC2 instances on a schedule to copy files from the Availability Zone A instance to the Availability Zone B instance.


B.

Configure the application to store the files on both EBS volumes each time a user writes or updates a file.


C.

Mount an Amazon Elastic File System (Amazon EFS) file system to the EC2 instances. Copy the files from the EBS volumes to the EFS file system. Configure the application to store files in the EFS file system.


D.

Create an EC2 instance profile that allows the instance in Availability Zone A to access the S3 bucket. Re-associate the instance profile to the instance in Availability Zone B when needed.


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