Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 221 discussion

A. EBS provides block-level storage volumes for use with EC2 instances. While it offers durability and persistence, it is not the most cost-effective solution for long-term retention of log files. Additionally, it does not provide concurrent access to the files, which is a requirement in this scenario. B. EFS is a scalable file storage service that can be mounted on multiple EC2 instances concurrently. While it provides concurrent access to files, it may not be the most cost-effective option for long-term retention due to its higher pricing compared to S3. C. The instance store is a temporary storage option that is physically attached to the EC2 instance. It does not provide the durability and long-term retention required for compliance purposes. Additionally, the instance store is not accessible outside of the specific EC2 instance it is attached to, so concurrent access by the reporting tool would not be possible. Therefore, considering the requirements for long-term retention, concurrent access, and cost-effectiveness, S3 is the most suitable and cost-effective storage solution.

EFS files cannot be stored for more than 365 days even with lifecycle policies. S3 is the most suitable option here.

A. EBS provides block-level storage volumes for use with EC2 instances. While it offers durability and persistence, it is not the most cost-effective solution for long-term retention of log files. Additionally, it does not provide concurrent access to the files, which is a requirement in this scenario. B. EFS is a scalable file storage service that can be mounted on multiple EC2 instances concurrently. While it provides concurrent access to files, it may not be the most cost-effective option for long-term retention due to its higher pricing compared to S3. C. The instance store is a temporary storage option that is physically attached to the EC2 instance. It does not provide the durability and long-term retention required for compliance purposes. Additionally, the instance store is not accessible outside of the specific EC2 instance it is attached to, so concurrent access by the reporting tool would not be possible.

this sounds like an expensive solution but if necessary then S3 would be the best

most cost effective = Amazon S3

D. Amazon S3

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"The log files will be analyzed by a reporting tool that must be able to access all the files concurrently" , so you need to access concurrently to get the logs. So is EFS. Letter B

https://aws.amazon.com/efs/faq/ EFS is a file storage service for use with Amazon compute (EC2, containers, serverless) and on-premises servers. EFS provides a file system interface, file system access semantics (such as strong consistency and file locking), and concurrently accessible storage for up to thousands of EC2 instances.

Whenever we see long time storage and no special requirements that needs EFS or FSx, then S3 is the way.

To meet the requirements of retaining application log files for 7 years and allowing concurrent access by a reporting tool, while also being cost-effective, the recommended storage solution would be D: Amazon S3.

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What about the keyword "concurrently"? Doesn't this mean EFS?

Cost Effective: S3

S3 is enough with the lowest cost perspective.

https://www.examtopics.com/discussions/amazon/view/22182-exam-aws-certified-solutions-architect-associate-saa-c02/