- (Topic 1)
Which of the following is a cost efficiency principle related to the AWS Cloud?

Correct Answer:A
One of the cost efficiency principles related to the AWS Cloud is to right-size services based on capacity requirements. This means choosing the most appropriate type
and size of AWS resources to meet the performance and scalability needs of the applications, while avoiding over-provisioning or under-provisioning. By right-sizing services, users can optimize the costs and benefits of using the AWS Cloud1

- (Topic 1)
Which of the following is an advantage that users experience when they move on-premises workloads to the AWS Cloud?

Correct Answer:A
The advantage that users experience when they move on-premises workloads to the AWS Cloud is: elimination of expenses for running and maintaining data centers. By moving on-premises workloads to the AWS Cloud, users can reduce or eliminate the costs associated with owning and operating physical servers, storage, network equipment, and facilities. These costs include hardware purchase, maintenance, repair, power, cooling, security, and staff. Users can also benefit from the pay-as-you-go pricing model of AWS, which allows them to pay only for the resources they use, and scale up or down as needed.

- (Topic 2)
A company is using AWS Organizations to configure AWS accounts.
A company is planning its migration to the AWS Cloud. The company is identifying its capability gaps by using the AWS Cloud Adoption Framework (AWS CAF) perspectives.
Which phase of the cloud transformation journey includes these identification activities?

Correct Answer:A
The Envision phase of the cloud transformation journey is where the company defines its vision, business drivers, and desired outcomes for the cloud adoption. The company also identifies its capability gaps by using the AWS Cloud Adoption Framework (AWS CAF) perspectives, which are business, people, governance, platform, security, and operations2.

- (Topic 1)
A company is migrating a relational database server to the AWS Cloud. The company wants to minimize
administrative overhead of database maintenance tasks. Which AWS service will meet these requirements?

Correct Answer:D
Amazon RDS is the AWS service that will meet the requirements of migrating a relational database server to the AWS Cloud and minimizing administrative overhead of database maintenance tasks. Amazon RDS is a fully managed relational database service that handles routine database tasks, such as provisioning, patching, backup, recovery, failure detection, and repair. Amazon RDS supports several database engines, such as MySQL, PostgreSQL, Oracle, SQL Server, and Amazon Aurora5.

- (Topic 2)
A company moves a workload to AWS to run on Amazon EC2 instances. The company needs to run the workload in the most cost-effective way.
What can the company do to meet this requirement?

Correct Answer:D
Rightsizing all the EC2 instances that are used in the deployment is the best way to run the workload in the most cost-effective way. Rightsizing means choosing the optimal instance type and size for the workload based on the performance and capacity requirements. Rightsizing helps to avoid over-provisioning or under-provisioning of the EC2 instances, which can result in wasted resources or poor performance. Rightsizing also helps to take advantage of the different pricing models and features that AWS offers, such as On-Demand, Reserved, and Spot Instances, and Auto Scaling. For more information, see Rightsizing Your Instances and [Cost Optimization with AWS].

- (Topic 1)
Which AWS service or feature is used to send both text and email messages from distributed applications?

Correct Answer:A
Amazon Simple Notification Service (Amazon SNS) is the AWS service or feature that is used to send both text and email messages from distributed applications. Amazon SNS is a fully managed pub/sub messaging service that enables the user to send messages to multiple subscribers or endpoints, such as email addresses, phone numbers, HTTP endpoints, AWS Lambda functions, and more. Amazon SNS can be used to send notifications, alerts, confirmations, and reminders from applications to users or other applications4.