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Question 340 - SCS-C01 discussion

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A company has a large set of keys defined in AWS KMS. Their developers frequently use the keys for the applications being developed. What is one of the ways that can be used to reduce the cost of accessing the keys in the AWS KMS service.

Please select:

A.
Enable rotation of the keys
Answers
A.
Enable rotation of the keys
B.
Use Data key caching
Answers
B.
Use Data key caching
C.
Create an alias of the key
Answers
C.
Create an alias of the key
D.
Use the right key policy
Answers
D.
Use the right key policy
Suggested answer: B

Explanation:

The AWS Documentation mentions the following

Data key caching stores data keys and related cryptographic material in a cache. When you encrypt or decrypt data, the AWS Encryption SDK looks for a matching data key in the cache. If it finds a match, it uses the cached data key rather than generatir a new one. Data key caching can improve performance, reduce cost, and help you stay within service limits as your application scales. Option A.C and D are all incorrect since these options will not impact how the key is used.

For more information on data key caching, please refer to below URL:

https://docs.aws.amazon.com/encryption-sdk/latest/developer-guide/data-key-cachine.htmllThe correct answer is: Use Data key caching Submit your Feedback/Queries to our Experts

asked 16/09/2024
Sacha CONTI
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