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Question 837

A company runs its applications on Amazon EC2 instances that are backed by Amazon Elastic Block Store (Amazon EBS). The EC2 instances run the most recent Amazon Linux release. The applications are experiencing availability issues when the company's employees store and retrieve files that are 25 GB or larger. The company needs a solution that does not require the company to transfer files between EC2 instances. The files must be available across many EC2 instances and across multiple Availability Zones.

Which solution will meet these requirements?

Migrate all the files to an Amazon S3 bucket. Instruct the employees to access the files from the S3 bucket.

Take a snapshot of the existing EBS volume. Mount the snapshot as an EBS volume across the EC2 instances. Instruct the employees to access the files from the EC2 instances.

Mount an Amazon Elastic File System (Amazon EFS) file system across all the EC2 instances. Instruct the employees to access the files from the EC2 instances.

Create an Amazon Machine Image (AMI) from the EC2 instances. Configure new EC2 instances from the AMI that use an instance store volume. Instruct the employees to access the files from the EC2 instances.

Correct Answer: C

To meet the requirement of having files accessible across many EC2 instances and multiple Availability Zones without transferring files between instances, Amazon Elastic File System (Amazon EFS) is the most suitable solution. Amazon EFS provides a scalable, fully managed elastic NFS file system that works across multiple EC2 instances and Availability Zones. This ensures high availability, durability, and consistency of the files without the need for complex management tasks.

Discussion

xBUGxOption: C

cross many EC2 instances and across multiple Availability Zones = EFS

muhammadahmer36Option: C

cross many EC2 instances and across multiple Availability Zones = EFS