- (Exam Topic 1)
Elasticity in the AWS Cloud refers to which of the following? (Select TWO.)

1. A. How quickly an Amazon EC2 instance can be restarted
2. B. The ability to right size resources as demand shifts
3. C. The maximum amount of RAM an Amazon EC2 instance can use
4. D. The pay-as-you-go billing model
5. E. How easily resources can be procured when they are needed

Correct Answer: BE
The AWS Well-Architected Framework defines elasticity as: The ability to acquire resources as you need them and release resources when you no longer need them. In the cloud, you want to do this automatically
https://dev.to/aws-builders/what-does-elastic-mean-cloud-concepts-explained-4anb#:~:text=The%20AWS%20W

- (Exam Topic 2)
A user has an AWS account with a Business-level AWS Support plan and needs assistance with handling a production service disruption. Which action should the user take?

1. A. Contact the dedicated AWS technical account manager (TAM).
2. B. Contact the dedicated AWS Concierge Support team.
3. C. Open a business-critical system down support case.
4. D. Open a production system down support case.

Correct Answer: C

- (Exam Topic 3)
Which of the following is an advantage that the AWS Cloud provides to users?

1. A. Users eliminate the need to guess about infrastructure capacity requirements.
2. B. Users decrease their variable costs by maintaining sole ownership of IT hardware.
3. C. Users maintain control of underlying IT infrastructure hardware.
4. D. Users maintain control of operating system for managed services.

Correct Answer: A

- (Exam Topic 3)
Which of the following is an AWS Well-Architected Framework design principle for operational excellence in the AWS Cloud?

1. A. Go global in minutes.
2. B. Make frequent, small, reversible changes.
3. C. Implement a strong foundation of identity and access management.
4. D. Stop spending money on hardware infrastructure for data center operations.

Correct Answer: B

- (Exam Topic 1)
Which of the following is an AWS key-value database offering consistent single-digit millisecond performance at any scale?

1. A. Amazon RDS
2. B. Amazon Aurora
3. C. Amazon DynamoDB
4. D. Amazon Redshift

Correct Answer: B
Amazon DynamoDB is designed to provide consistent single-digit millisecond latency for any scale of workloads. This consistent performance is a big part of why the Snapchat Stories feature, which includes Snapchat's largest storage write workload, moved to DynamoDB.