Q7 — AWS SAA-C03 Ch.6

Question 7 of 65 | ← Chapter 6

Q372. 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 filles 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?

• A. Migrate all the files to an Amazon S3 bucket. Instruct the employees to access the files from the S3 bucket
• B. 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
• C. 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 ✓
• D. Create an Amazon Machine Image (AMl) 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. 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

Explanation

Amazon Elastic File System (Amazon EFS) is a scalable and fully managed file storage service provided by AWS. It is designed to provide shared file storage for multiple EC2 instances, allowing them to access the same set of files concurrently.By mounting an Amazon EFS file system across all the EC2 instances, the company can ensure that the files are available across many instances and multiple Availability Zones. This eliminates the need to transfer files between EC2 instances and provides a centralized storage solution for the applications. Option A (Migrate all the files to Amazon S3 bucket) would require modifying the application code to access files from S3 instead EBS, which may not be feasible or practical in this scenario. Option B (Take a snapshot of the existing EBS volume and mount it as an EBS volume across the EC2 instances) would still require transferring the files between instances and may not provide the desired availability and scalability.Option D (Create an Amazon Machine Image (  ) and configure new EC2 instances with instance store volumes) does not address the requirement of having the files available across multiple instances and Availability Zones.