Exam AWS Certified Developer - Associate DVA-C02 topic 1 question 39 discussion

Both B and C are feasible solutions. Just consider the "MOST cost effectively" here. AWS Systems Manager Parameter Store comes with no additional cost (Standard type). However, AWS Secrets Manager costs $0.40 per secret per month, and data retrieval costs $0.05 per 10,000 API calls. C is much cheaper, guy.

I chose C because AWS Secrets Manager does auto key rotation(The question says that the key is one-time fixed).

A) Eliminated - this solution involves additional complexity B) Eliminated - Secrets Manager charges a fee for secret storage and API calls. For one-time fixed license keys, this might be unnecessary overhead. Secrets Manager is more suited for dynamically rotated secrets (e.g., database credentials), not fixed keys. C) Correct: SecureString parameters are free to store unless using advanced features, making it highly cost-efficient. D) Eliminated - Parameters marked with NoEcho are limited to the stack and cannot be accessed programmatically by EC2 instances

"One-time fixed license keys" are unique codes provided when purchasing a software license. It's more cost effective to provide this via AWS Systems Manager with secure parameters.

C is the correct answer.

It said 'one-time fixed license keys' and 'MOST cost-effectively', so C is better

C seems the best fit.

PS prob is free for this use case https://docs.aws.amazon.com/systems-manager/latest/userguide/parameter-store-advanced-parameters.html, even though SM cost may also count to nothing(due to the scale of the use case and caching client). Again the only notable difference is the aforementioned irrelevant tag.

C 'https://docs.aws.amazon.com/systems-manager/latest/userguide/systems-manager-parameter-store.html