DEA-C01 · Question #21
DEA-C01 Question #21: Real Exam Question with Answer & Explanation
The correct answer is B: Launch new EC2 instances by using an AMI that is backed by a root Amazon Elastic Block Store. Amazon EBS volumes are network-attached, and they persist independently of the life of an EC2 instance. By using an AMI backed by an Amazon EBS volume, the root device for the instance is an EBS volume, which means the data will persist.
Question
A company is developing an application that runs on Amazon EC2 instances. Currently, the data that the application generates is temporary. However, the company needs to persist the data, even if the EC2 instances are terminated. A data engineer must launch new EC2 instances from an Amazon Machine Image (AMI) and configure the instances to preserve the data. Which solution will meet this requirement?
Options
- ALaunch new EC2 instances by using an AMI that is backed by an EC2 instance store volume that
- BLaunch new EC2 instances by using an AMI that is backed by a root Amazon Elastic Block Store
- CLaunch new EC2 instances by using an AMI that is backed by an EC2 instance store volume.
- DLaunch new EC2 instances by using an AMI that is backed by an Amazon Elastic Block Store
Explanation
Amazon EBS volumes are network-attached, and they persist independently of the life of an EC2 instance. By using an AMI backed by an Amazon EBS volume, the root device for the instance is an EBS volume, which means the data will persist.
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