A company has an Amazon S3 bucket that contains mission-critical data. The company wants to ensure this data is protected from accidental deletion. The data should still be accessible, and a user should be able to delete the data internationally.
Which combination of steps should a solutions architect take to accomplish this? (Select TWO.)

• A.Create a lifecycle policy for the objects in the S3 bucket.
• B.Create a bucket policy on the S3 bucket
• C.Enable MFA Delete on the S3 bucket.
• D.Enable versioning on the S3 bucket.
• E.Enable default encryption on the S3 bucket.

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A company has a production web application in which users upload documents through a web interlace or a mobile app. According to a new regulatory requirement, new documents cannot be modified or deleted after they are stored.
What should a solutions architect do to meet this requirement?

• A.Store the uploaded documents in an Amazon S3 bucket with S3 Versioning and S3 Object Lock enabled
• B.Store the uploaded documents in an Amazon S3 bucket. Configure an S3 Lifecycle policy to archive the documents periodically.
• C.Store the uploaded documents in an Amazon S3 bucket with S3 Versioning enabled Configure an ACL to restrict all access to read-only.
• D.Store the uploaded documents on an Amazon Elastic File System (Amazon EFS) volume. Access the data by mounting the volume in read-only mode.

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A company expects its user base to increase five times over one year. Its application is hosted in one region and uses an Amazon RDS MySQL database, an ELB Application Load Balancer, and Amazon ECS to host the website and its microservices.
Which design changes should a Solutions Architect recommend to support the expected growth? (Choose two.)

• A.Create RDS read replicas and change the application to use these replicas
• B.Create a dedicated Elastic Load Balancer for each microservice
• C.Move static files from ECS to Amazon S3
• D.Use an Amazon Route 53 geolocation routing policy
• E.Scale the environment based on real-time AWS CloudTrail logs

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A Development team is deploying new APIs as serverless applications within a company. The team is currently using the AWS Management Console to provision Amazon API Gateway, AWS Lambda, and Amazon DynamoDB resources. A Solutions Architect has been tasked with automating the future deployments of these serverless APIs.
How can this be accomplished?

• A.Use the AWS Serverless Application Model to define the resources. Upload a YAML template and application files to the code repository. Use AWS CodePipeline to connect to the code repository and to create an action to build using AWS CodeBuild. Use the AWS CloudFormation deployment provider in CodePipeline to deploy the solution.
• B.Commit the application code to the AWS CodeCommit code repository. Use AWS CodePipeline and connect to the CodeCommit code repository. Use AWS CodeBuild to build and deploy the Lambda functions using AWS CodeDeploy. Specify the deployment preference type in CodeDeploy to gradually shift traffic over to the new version.
• C.Use AWS CloudFormation to define the serverless application. Implement versioning on the Lambda functions and create aliases to point to the versions. When deploying, configure weights to implement shifting traffic to the newest version, and gradually update the weights as traffic moves over.
• D.Use AWS CloudFormation with a Lambda-backed custom resource to provision API Gateway. Use the AWS::DynamoDB::Table and AWS::Lambda::Function resources to create the Amazon DynamoDB table and Lambda functions. Write a script to automate the deployment of the CloudFormation template.

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The application tier for a workload runs on EC2 instances that are unevenly distributed across two Availability Zones. The instances are behind a Network Load Balancer and are accessed through layer 4 TCP connections.
The instances in the lesser populated Availability Zone are failing as the result of high CPU utilization.
Which configuration change can help mitigate the issue?

• A.Switch to using an Application Load Balancer and enable cross-zone load balancing.
• B.Modify the Network Load Balancer to enable sticky sessions
• C.Switch to using an Application Load Balancer and enable sticky sessions.
• D.Modify the Network Load Balancer to enable cross-zone load balancing.

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