1. Home
2. All questions
3. Cost optimization

AWS Certified Solutions Architect study material: Cost optimization

30 questions of the 500 in the AWS Certified Solutions Architect – Associate quiz. Each opens with its answer, the reasoning and where that is written down.

Challenge yourself on this topic → Study as cards

The questions

1. 24. A team wants encryption at rest with no key to manage, no charge for the key, and easy sharing of encrypted data across accounts. Which KMS key type fits?
2. 94. Which KMS key type carries a monthly charge for merely existing, in addition to per-request charges?
3. 142. What do security groups and network ACLs cost to use in a VPC?
4. 161. In a pilot light strategy, which components stay running in the recovery Region?
5. 205. How does AWS Backup keep frequent backups affordable for supported resource types?
6. 476. How is an On-Demand EC2 instance billed?
7. 477. Which two commitments do Reserved Instances and Savings Plans differ on? Choose two.
8. 478. Which purchasing option lets a customer bring existing per-socket or per-core software licences to AWS?
9. 479. How is the hourly price of a Spot Instance determined?
10. 480. Which two workloads suit Spot Instances? Choose two.
11. 481. Which two savings can a single Auto Scaling group combine? Choose two.
12. 482. What does S3 Intelligent-Tiering charge that the other storage classes do not?
13. 483. Which two billing rules apply to the S3 infrequent-access storage classes? Choose two.
14. 484. A team uploads data to S3 Standard and wants it to become cheaper as it ages. What is the usual approach?
15. 485. Which two costs can an S3 Lifecycle configuration incur? Choose two.
16. 486. Why does keeping three versions of an object in a versioned bucket cost as much as three objects?
17. 487. Which two charges apply while an object restored from S3 Glacier sits in the bucket? Choose two.
18. 488. An application restores an object that has already been restored. How is that request billed?
19. 489. How is an interface VPC endpoint charged?
20. 490. Which two things can AWS Budgets do beyond raising an alert? Choose two.
21. 491. How often does AWS Budgets refresh its information?
22. 492. Which two cost types can an AWS Budget track? Choose two.
23. 493. A finance team needs a budget covering a three-month project rather than a calendar month. What can they use?
24. 494. Which two facts about Cost Explorer are correct? Choose two.
25. 495. How much can Savings Plans reduce the cost of compute workloads?
26. 496. Which two kinds of usage does a Compute Savings Plan discount? Choose two.
27. 497. Which payment options does a Savings Plan offer?
28. 498. What does AWS Compute Optimizer analyse to make its recommendations?
29. 499. Which support plans give access to the full set of Trusted Advisor checks?
30. 500. Which two serverless services charge nothing while completely idle? Choose two.