QUESTION: 101

A publishing company's design team updates the icons and other static assets that an ecommerce web application uses. The company serves the icons and assets from an Amazon S3 bucket that is hosted in the company's production account. The company also uses a development account that members of the design team can access.

After the design team tests the static assets in the development account, the design team needs to load the assets into the S3 bucket in the production account. A solutions architect must provide the design team with access to the production account without exposing other parts of the web application to the risk of unwanted changes.

Which combination of steps will meet these requirements? (Choose three.)

In the production account, create a new IAM policy that allows read and write access to the S3 bucket.
In the development account, create a new IAM policy that allows read and write access to the S3 bucket.
In the production account, create a role Attach the new policy to the role. Define the development account as a trusted entity.
In the development account, create a role. Attach the new policy to the role Define the production account as a trusted entity.
In the development account, create a group that contains all the IAM users of the design team Attach a different IAM policy to the group to allow the sts:AssumeRole action on the role In the production account.
In the development account, create a group that contains all the IAM users of the design team Attach a different IAM policy to the group to allow the sts:AssumeRole action on the role in the development account.

Answer(s): A,C,E

Explanation:

A) In the production account, create a new IAM policy that allows read and write access to the S3 bucket.
This policy ensures that the design team can interact with the specific S3 bucket where the static assets are stored, allowing them to upload new assets and manage existing ones without affecting other resources in the production account.

C) In the production account, create a role. Attach the new policy to the role. Define the development account as a trusted entity.
Creating a role in the production account with the necessary permissions and defining the development account as a trusted entity allows users from the development account to assume this role and gain temporary access to the S3 bucket.

E) In the development account, create a group that contains all the IAM users of the design team. Attach a different IAM policy to the group to allow the sts
action on the role in the production account.
This step allows the design team members in the development account to assume the role created in the production account, enabling them to perform actions on the S3 bucket without directly granting them access to the production account.

Together, these steps create a secure and controlled access mechanism for the design team, allowing them to manage static assets while minimizing risks to other parts of the production environment.

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QUESTION: 102

A company developed a pilot application by using AWS Elastic Beanstalk and Java. To save costs during development, the company's development team deployed the application into a single-instance environment. Recent tests indicate that the application consumes more CPU than expected. CPU utilization is regularly greater than 85%, which causes some performance bottlenecks.

A solutions architect must mitigate the performance issues before the company launches the application to production.

Which solution will meet these requirements with the LEAST operational overhead?

Create a new Elastic Beanstalk application. Select a load-balanced environment type. Select all Availability Zones. Add a scale-out rule that will run if the maximum CPU utilization is over 85% for 5 minutes.
Create a second Elastic Beanstalk environment. Apply the traffic-splitting deployment policy. Specify a percentage of incoming traffic to direct to the new environment in the average CPU utilization is over 85% for 5 minutes.
Modify the existing environment’s capacity configuration to use a load-balanced environment type. Select all Availability Zones. Add a scale-out rule that will run if the average CPU utilization is over 85% for 5 minutes.
Select the Rebuild environment action with the load balancing option. Select an Availability Zones. Add a scale-out rule that will run if the sum CPU utilization is over 85% for 5 minutes.

Answer(s): C

Explanation:

C) Modify the existing environment’s capacity configuration to use a load-balanced environment type. Select all Availability Zones. Add a scale-out rule that will run if the average CPU utilization is over 85% for 5 minutes.
This option allows the existing Elastic Beanstalk application to scale horizontally by adding more instances when CPU utilization exceeds 85%. It leverages Elastic Beanstalk's built-in capabilities to manage scaling and load balancing with minimal operational overhead. By modifying the current environment instead of creating a new one, the solution is efficient and straightforward, allowing the development team to focus on application performance without significant changes to their deployment setup.

This approach ensures that the application can handle increased load effectively while maintaining operational simplicity.

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QUESTION: 103

A finance company is running its business-critical application on current-generation Linux EC2 instances. The application includes a self-managed MySQL database performing heavy I/O operations. The application is working fine to handle a moderate amount of traffic during the month. However, it slows down during the final three days of each month due to month-end reporting, even though the company is using Elastic Load Balancers and Auto Scaling within its infrastructure to meet the increased demand.

Which of the following actions would allow the database to handle the month-end load with the LEAST impact on performance?

Pre-warming Elastic Load Balancers, using a bigger instance type, changing all Amazon EBS volumes to GP2 volumes.
Performing a one-time migration of the database cluster to Amazon RDS, and creating several additional read replicas to handle the load during end of month.
Using Amazon CloudWatch with AWS Lambda to change the type, size, or IOPS of Amazon EBS volumes in the cluster based on a specific CloudWatch metric.
Replacing all existing Amazon EBS volumes with new PIOPS volumes that have the maximum available storage size and I/O per second by taking snapshots before the end of the month and reverting back afterwards.

Answer(s): B

Explanation:

B) Performing a one-time migration of the database cluster to Amazon RDS, and creating several additional read replicas to handle the load during end of month.
Migrating to Amazon RDS provides several advantages, including automated management tasks such as backups, scaling, and patching, which can significantly reduce the operational burden. By creating additional read replicas, the company can distribute the read workload during peak times like month-end reporting, thus improving performance and reducing the load on the primary database instance. This approach allows for better scalability and performance optimization with minimal manual intervention and operational overhead.

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QUESTION: 104

A company runs a Java application that has complex dependencies on VMs that are in the company's data center. The application is stable. but the company wants to modernize the technology stack. The company wants to migrate the application to AWS and minimize the administrative overhead to maintain the servers.

Which solution will meet these requirements with the LEAST code changes?

Migrate the application to Amazon Elastic Container Service (Amazon ECS) on AWS Fargate by using AWS App2Container. Store container images in Amazon Elastic Container Registry (Amazon ECR). Grant the ECS task execution role permission 10 access the ECR image repository. Configure Amazon ECS to use an Application Load Balancer (ALB). Use the ALB to interact with the application.
Migrate the application code to a container that runs in AWS Lambda. Build an Amazon API Gateway REST API with Lambda integration. Use API Gateway to interact with the application.
Migrate the application to Amazon Elastic Kubernetes Service (Amazon EKS) on EKS managed node groups by using AWS App2Container. Store container images in Amazon Elastic Container Registry (Amazon ECR). Give the EKS nodes permission to access the ECR image repository. Use Amazon API Gateway to interact with the application.
Migrate the application code to a container that runs in AWS Lambda. Configure Lambda to use an Application Load Balancer (ALB). Use the ALB to interact with the application.

Answer(s): A

Explanation:

A) Migrate the application to Amazon Elastic Container Service (Amazon ECS) on AWS Fargate by using AWS App2Container. Store container images in Amazon Elastic Container Registry (Amazon ECR). Grant the ECS task execution role permission to access the ECR image repository. Configure Amazon ECS to use an Application Load Balancer (ALB). Use the ALB to interact with the application.
This solution allows for minimal code changes while modernizing the application. Using AWS App2Container facilitates the migration of the existing application to containerized environments with little effort. By leveraging Amazon ECS on AWS Fargate, the company eliminates the need to manage underlying server infrastructure, thus minimizing administrative overhead. Additionally, using an ALB provides a scalable way to handle traffic to the application, ensuring high availability.

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