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Exam AWS Certified Developer - Associate DVA-C02 topic 1 question 266 discussion

Exam question from Amazon's AWS Certified Developer - Associate DVA-C02
Question #: 266
Topic #: 1
[All AWS Certified Developer - Associate DVA-C02 Questions]

A company is building a compute-intensive application that will run on a fleet of Amazon EC2 instances. The application uses attached Amazon Elastic Block Store (Amazon EBS) volumes for storing data. The Amazon EBS volumes will be created at time of initial deployment. The application will process sensitive information. All of the data must be encrypted. The solution should not impact the application's performance.

Which solution will meet these requirements?

  • A. Configure the fleet of EC2 instances to use encrypted EBS volumes to store data.
  • B. Configure the application to write all data to an encrypted Amazon S3 bucket.
  • C. Configure a custom encryption algorithm for the application that will encrypt and decrypt all data.
  • D. Configure an Amazon Machine Image (AMI) that has an encrypted root volume and store the data to ephemeral disks.
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Suggested Answer: A 🗳️
by CrescentShared at Feb. 21, 2024, 4:03 a.m.
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CrescentShared
Highly Voted 8 months, 1 week ago
Selected Answer: A
Option B is not ideal because writing all data to an S3 bucket would introduce network latency and might impact performance. By default, Amazon EBS volumes can only be attached to one EC2 instance at a time, and they cannot be mounted to multiple instances simultaneously. However, AWS does offer a feature called Amazon EBS Multi-Attach, which allows you to attach a Provisioned IOPS SSD (io1 or io2) EBS volume to up to 16 Nitro-based EC2 instances within the same Availability Zone. This feature is designed for applications that require concurrent access to the same data from multiple instances, such as clustered databases or parallel file systems.
upvoted 6 times
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65703c1
Most Recent 5 months ago
Selected Answer: A
A is the correct answer.
upvoted 1 times
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SerialiDr
7 months, 3 weeks ago
Selected Answer: A
This approach directly meets the requirement for encryption without impacting performance significantly. AWS EBS encryption offers encryption at rest and integrates with AWS Key Management Service (AWS KMS) for managing encryption keys. This encryption happens transparently to the applications using the EBS volumes, thus not affecting performance in a manner that would be significant for most compute-intensive applications.
upvoted 3 times
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