A developer is building a backend system for the long-term storage of information from an inventory management system. The information needs to be stored so that other teams can build tools to report and analyze the data.
How should the developer implement this solution to achieve the FASTEST running time?
A. Create an AWS Lambda function that writes to Amazon S3 synchronously Increase the function's concurrency to match the highest expected value of concurrent scans and requests.
B. Create an AWS Lambda function that writes to Amazon S3 asynchronously Configure a dead-letter queue to collect unsuccessful invocations
C. Create an AWS Lambda function that writes to Amazon S3 synchronously Set the inventory system to retry failed requests.
D. Create an AWS Lambda function that writes to an Amazon ElastiCache for Redis cluster asynchronously Configure a dead-letter queue to collect unsuccessful invocations.
A developer has an AWS CodePipelme pipeline that invokes AWS CodeBuild in the build stage The developer wants to pass in a variable from CodePipeline so that the variable can be read in the CodeBuild buiidspec yml file.
How can the developer accomplish this goal?
A. Configure a unique CodePipelme vanable namespace and vanables as key-value pairs that define each of Pass Your Certification With Marks4sure Guarantee the variables required in CodeBuild
B. Configure a CodePipelme environment vanable that contains a JSON document that defines each of the variables required in CodeBuild
C. Configure an AWS CloudFormation stack set that contains a JSON document that defines each of the variables required in CodeBuild Reference the stack set from CodePipelme
D. Configure an AWS CodeArtifact repository to store each environment variable Reference CodeArtifact from CodePipelme and CodeBuild
A developer has created a Java application that makes HTTP requests directly to AWS services. Application logging shows 5xx HTTP response codes that occ irregular intervals. The errors are affecting users.
How should the developer update the application to improve the application's resiliency?
A. Revise the request content in the application code.
B. Use the AWS SDK for Java to interact with AWS APIs.
C. Scale out the application so that more instances of the application are running.
D. Add additional logging to the application code.
A developer is deploying an application in the AWS Cloud by using AWS Cloud Formation The application will connect to an existing Amazon RDS database The hostname of the RDS database is stored in AWS Systems Manager Parameter Store as a plaintext value The developer needs to incorporate the database hostname into the Cloud Formation template to initialize the application when the stack is created.
How should the developer reference the parameter that contains the database hostname?
A. Use the ssm dynamic reference
B. Use the Ref intrinsic function
C. Use the Fn: ImportVatue intrinsic function
D. Use the ssm-secure dynamic reference.
The upload of a 15 GB object to Amazon S3 fails. The error message reads: “Your proposed upload exceeds the maximum allowed object size.”
Which of following technique will allow the Developer to upload this object?
A. Upload the object to another AWS region
B. Upload the object using the multi-part upload API
C. Contact AWS Support to increase the object size limit
D. Upload the object over an AWS Direct Connect connection
A company is offering APIs as a service over the internet to provide unauthenticated read access to statistical information that is updated daily. The company uses Amazon API Gateway and AWS Lambda to develop the APIs. The service has become popular, and the company wants to enhance the responsiveness of the APIs.
Which action can help the company achieve this goal?
A. Enable API caching in API Gateway.
B. Configure API Gateway to use an interface VPC endpoint.
C. Enable cross-origin resource sharing (CORS) for the APIs.
D. Configure usage plans and API keys in API Gateway.
An application uses AWS X-Ray to generate a large amount of trace data on an hourly basis. A developer wants to use filter expressions to limit the returned results through user-specified custom attributes. How should the developer use filter expressions to filter the results in X-Ray?
A. Add custom attributes as annotations in the segment document.
B. Add custom attributes as metadata in the segment document.
C. Add custom attributes as new segment fields in the segment document.
D. Create new sampling rules that are based on custom attributes.
A developer must invoke an AWS Lambda function based on the changes to items in an Amazon DynamoDB table. How should the developer design the solution?
A. Enable Amazon DynamoDB Streams on the table. Configure a DynamoDB stream to publish updates to an Amazon Simple Notification Service (Amazon SNS) topic. Subscribe the Lambda function to the SNS topic.
B. Configure a trigger on the DynamoDB table to publish updates to an Amazon Simple Notification Service (Amazon SNS) topic. Subscribe the Lambda function to the SNS topic.
C. Enable Amazon DynamoDB Streams on the table. Create a Lambda event source mapping to invoke the Lambda function when updates are written to the DynamoDB stream.
D. Configure a trigger on the DynamoDB table, and publish updates to an Amazon S3 bucket. Create a Lambda event source mapping to invoke the Lambda function when updates are written to the S3 bucket.
A company runs its APIs using Amazon API Gateway in front of AWS Lambda functions. The company wants to add logging at the API level. Each API must have production and development environments. The developer wants to enable different logging levels in both environments.
How can these requirements be met?
A. Set up a stage for each environment. In each stage, point to different Lambda functions that implement the logging logic in the code. Access the logs in Amazon CloudWatch Logs.
B. Set up a stage for each environment. In each stage, define a different logging level according to the logging requirements. Access the logs in Amazon CloudWatch Logs.
C. Set up a stage and use the same Lambda functions. In Amazon CloudWatch Logs, set up a filter based on the log level according to the logging requirements.
D. Set up a stage for each environment. In each stage, define a variable for the log level. Set the value according to the logging requirements.
A developer has written an application that runs on Amazon EC2 instances. The developer is adding functionality for the application to write objects to an Amazon S3 bucket. Which policy must the developer modify to allow the instances to write these objects?
A. The IAM policy that is attached to the EC2 instance profile role
B. The session policy that is applied to the EC2 instance role session
C. The AWS Key Management Service (AWS KMS) key policy that is attached to the EC2 instance profile role
D. The Amazon VPC endpoint policy
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