Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 147 discussion

Why not AwsBackup? No Glacier Deep is supported by AWS Backup https://docs.aws.amazon.com/aws-backup/latest/devguide/s3-backups.html AWS Backup allows you to backup your S3 data stored in the following S3 Storage Classes: • S3 Standard • S3 Standard - Infrequently Access (IA) • S3 One Zone-IA • S3 Glacier Instant Retrieval • S3 Intelligent-Tiering (S3 INT)

S3 Lifecycle policies to the rescue

B is the most cost-effective solution. Storing the logs in S3 and using S3 Lifecycle policies to transition logs older than 1 month to S3 Glacier Deep Archive allows for cost optimization based on data access patterns. Since logs older than 1 month are rarely accessed, moving them to S3 Glacier Deep Archive helps minimize storage costs while still retaining the logs for the required 10-year period. A is incorrect because using AWS Backup to move logs to S3 Glacier Deep Archive can incur additional costs and complexity compared to using S3 Lifecycle policies directly. C adds unnecessary complexity and costs by involving CloudWatch Logs and AWS Backup when direct management through S3 is sufficient. D is incorrect because using S3 Lifecycle policies to move logs from CloudWatch Logs to S3 Glacier Deep Archive is not a valid option. CloudWatch Logs and S3 have separate storage mechanisms, and S3 Lifecycle policies cannot be applied directly to CloudWatch Logs.

B is correct..

Option B (Store the logs in Amazon S3. Use S3 Lifecycle policies to move logs more than 1-month-old to S3 Glacier Deep Archive) would meet these requirements in the most cost-effective manner. This solution would allow the application team to quickly access the logs from the past month for troubleshooting, while also providing a cost-effective storage solution for the logs that are rarely accessed and need to be retained for 10 years.

Option B is most cost effective. Moving logs to Cloudwatch logs may incure additional cost.

B is correct

S3 + Glacier is the most cost effective.

D works, archive cloudwatch logs to S3 .... but is an additional service to pay for over B.

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