A developer has written an AWS Lambda function. The function is CPU-bound. The developer wants to ensure that the function returns responses quickly.
How can the developer improve the function's performance?

• A.Increase the function's CPU core count.
• B.Increase the function's memory.
• C.Increase the function's reserved concurrency.
• D.Increase the function's timeout.

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A developer designed an application on an Amazon EC2 instance The application makes API requests to objects in an Amazon S3 bucket Which combination of steps will ensure that the application makes the API requests in the MOST secure manner? (Select TWO.)

• A.Create an IAM user that has permissions to the S3 bucket. Add the user to an 1AM group
• B.Create an IAM role that has permissions to the S3 bucket
• C.Add the IAM role to an instance profile. Attach the instance profile to the EC2 instance.
• D.Create an 1AM role that has permissions to the S3 bucket Assign the role to an 1AM group
• E.Store the credentials of the IAM user in the environment variables on the EC2 instance

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A developer is using AWS CodeDeploy to launch an application onto Amazon EC2 instances. The application deployment fails during testing. The developer notices an IAM_ROLE_PERMISSIONS error code in Amazon CloudWatch logs.
What should the developer do to resolve the error?

• A.Attach the AWSCodeDeployRole policy to the CodeDeploy service role.
• B.Attach the AWSCodeDeployRoleECS policy to the CodeDeploy service role.
• C.Ensure that the deployment group is using the correct role name for the CodeDeploy service role.
• D.Ensure the CodeDeploy agent is installed and running on all instances in the deployment group.

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A financial company must store original customer records for 10 years for legal reasons. A complete record contains personally identifiable information (PII). According to local regulations, PII is available to only certain people in the company and must not be shared with third parties. The company needs to make the records available to third-party organizations for statistical analysis without sharing the PII.
A developer wants to store the original immutable record in Amazon S3. Depending on who accesses the S3 document, the document should be returned as is or with all the PII removed. The developer has written an AWS Lambda function to remove the PII from the document. The function is named removePii.
What should the developer do so that the company can meet the PII requirements while maintaining only one copy of the document?

• A.Set up an S3 event notification that invokes the removePii function when an S3 GET request is made. Call Amazon S3 by using a GET request to access the object without PII.
• B.Set up an S3 event notification that invokes the removePii function when an S3 PUT request is made. Call Amazon S3 by using a PUT request to access the object without PII.
• C.Create an S3 Object Lambda access point from the S3 console. Select the removePii function. Use S3 Access Points to access the object without PII.
• D.Create an S3 access point from the S3 console. Use the access point name to call the GetObjectLegalHold S3 API function. Pass in the removePii function name to access the object without PII.

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A company is building an application for stock trading. The application needs sub-millisecond latency for processing trade requests. The company uses Amazon DynamoDB to store all the trading data that is used to process each trading request A development team performs load testing on the application and finds that the data retrieval time is higher than expected. The development team needs a solution that reduces the data retrieval time with the least possible effort.
Which solution meets these requirements'?

• A.Add local secondary indexes (LSis) for the trading data.
• B.Store the trading data m Amazon S3 and use S3 Transfer Acceleration.
• C.Add retries with exponential back off for DynamoDB queries.
• D.Use DynamoDB Accelerator (DAX) to cache the trading data.

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