A developer is using Amazon DynamoDB to store application data . The developer wants to further improve application performance by reducing response limes for read and write operations.
Which DynamoDB feature should be used to meet these requirement?

• A.Amazon DynamoDB Streams
• B.Amazon DynamoDB Accelerator
• C.Amazon DynamoDB global tables
• D.Amazon DynamoDB transactions

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A data-processing application includes an AWS Lambda function that processes data in several steps. Recently, the function has been reaching the Lambda tii A developer wants to use AWS X-Ray to find out how long each step is taking so that the developer can determine which step is causing the timeout.
Which combination of actions should the developer take to accomplish this goal? (Select TWO.)

• A.Use the aws lambda update-function-configuration AWS CLI command to enable active tracing on the Lambda function.
• B.Modify the application to put each processing step in a separate Lambda layer. Include all the layers in the Lambda function.
• C.Modify the application to record each processing step in an X-Ray subsegment by using the X-Ray software development kit (SDK).
• D.Modify the application to call the PutMetricData API operation after each processing step. Include the time taken in milliseconds.
• E.Add the xray:PutTraceSegments permission and the xray:PutTelemetryRecords permission to the Lambda function's execution role.

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Where should an Elastic Beanstalk configuration file named healthcheckur1.config be placed in the application source bundle?

• A.In healthcheckur1.config.ebextension under root
• B.In the bin folder
• C.In the .ebextensions folder
• D.In the root of the application

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A developer is creating a script to automate the deployment process for a serverless application.
The developer wants to use an existing AWS Serverless Application Model (AWS SAM) template for the application What should the developer use for the project? (Select TWO)

• A.Callaws s3 cp to upload the AWS SAM template to Amazon S3 Call aws lambda update-function-code to create the application.
• B.Callaws cloudformation package to create the deployment package Call aws cloudformation deploy to deploy the package afterward.
• C.Create a ZIP package locally and call aws serverlessrepo create-applicarion to create the application.
• D.Create a ZIP package and upload it to Amazon S3 Callaws cloudfonnation create-stack to create the application
• E.Call sam package to create the deployment package Call sam deploy to deploy the package afterward

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A company is using AWS Elastic Beanstalk to deploy a three-tier application. The application uses an Amazon RDS DB instance as the database tier. The com wants to decouple the DB instance from the Elastic Beanstalk environment.
Which combination of steps should a developer take to meet this requirement? (Select TWO.)

• A.Use the Elastic Beanstalk CLI to decouple the DB instance.
• B.Modify the current Elastic Beanstalk environment to connect to the DB instance.
• C.Use the AWS CLI to decouple the DB instance.
• D.Create a new Elastic Beanstalk environment that connects to the DB instance.
• E.Create a new DB instance from a snapshot of the previous DB instance.

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