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Exam AWS Certified Solutions Architect - Associate SAA-C02 topic 1 question 532 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C02
Question #: 532
Topic #: 1
[All AWS Certified Solutions Architect - Associate SAA-C02 Questions]

A company is running a media store across multiple Amazon EC2 instances distributed across multiple Availability Zones in a single VPC. The company wants a high-performing solution to share data between all the EC2 instances, and prefers to keep the data within the VPC only.
What should a solutions architect recommend?

  • A. Create an Amazon S3 bucket and call the service APIs from each instance's application.
  • B. Create an Amazon S3 bucket and configure all instances to access it as a mounted volume.
  • C. Configure an Amazon Elastic Block Store (Amazon EBS) volume and mount it across all instances.
  • D. Configure an Amazon Elastic File System (Amazon EFS) file system and mount it across all instances.
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Suggested Answer: D 🗳️
by DRSBBSR at Dec. 12, 2021, 6:44 a.m.
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cloud_collector
2 years, 9 months ago
EBS is a high-performance per-instance block storage system designed to act as storage for a single EC2 instance (most of the time) EFS is a highly scalable file storage system designed to provide flexible storage for multiple EC2 instances S3 is an object storage system, designed to provide archiving and data control options and to interface with other services beyond EC2. It’s also useful for storing static html pages and shared storage for applications D is better
upvoted 2 times
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coscos
2 years, 10 months ago
s3 is not inside a VPC
upvoted 1 times
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Karthikeyan_nick
3 years ago
Option D: EFS supports NFS protocol and Linux based instances. If the EC2 is LINUX then fine.
upvoted 2 times
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SimoneP
3 years, 2 months ago
Selected Answer: D
assuming they are linux ec2 instances, I choose D
upvoted 3 times
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DRSBBSR
3 years, 4 months ago
D. Its about Data Sharing within VPC. So A & B would be ruled out. EBS can't be mounted
upvoted 4 times
JuFonAlc
3 years, 4 months ago
Agree with D. EBS can only be mounted to one instance at a time
upvoted 2 times
RandomLettersAndNumbers
3 years, 3 months ago
To be exact it can be attached to several instances https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-volumes-multi.html However it's still D as we have instances in deferent AZ`s.
upvoted 1 times
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