Developer Associate (Page 13)

A developer is creating an AWS Lambda function in VPC mode.An Amazon S3 event will invoke the Lambda function when an object is uploaded into an S3 bucket.The Lambda function will process the object and produce some analytic results that will be recorded into a file.Each processed object will also generate a log entry that will be recorded into a file.Other Lambda functions, AWS services, and on-premises resources must have access to the result files and log file.Each log entry must also be appended to the same shared log file.The developer needs a solution that can share files and append results into an existing file.Which solution should the developer use to meet these requirements?Read More →

A company has deployed an application on AWS Elastic Beanstalk.The company has configured the Auto Scaling group that is associated with the Elastic Beanstalk environment to have five Amazon EC2 instances.If the capacity is fewer than four EC2 instances during the deployment, application performance degrades.The company is using the all-at-once deployment policy.What is the MOST cost-effective way to solve the deployment issue?Read More →

A company hosts a batch processing application on AWS Elastic Beanstalk with instances that run the most recent version of Amazon Linux.The application sorts and processes large datasets.In recent weeks, the application’s performance has decreased significantly during a peak period for traffic.A developer suspects that the application issues are related to the memory usage.The developer checks the Elastic Beanstalk console and notices that memory usage is not being tracked.How should the developer gather more information about the application performance issues?Read More →

A developer is writing an IAM policy document that grants administrator access to AWS Key Management Service (AWS KMS) for a federated user.The federated IAM role name is FederatedIAMRole.The user name is KeyAdmin.How should the developer set the principal in the KMS key policy to meet these requirements?Read More →

A developer is setting up the deployment of application stacks to new test environments by using the AWS Cloud Development Kit (AWS CDK).The application contains the code for several AWS Lambda functions that will be deployed as assets.Each Lambda function is defined by using the AWS CDK Lambda construct library.The developer has already successfully deployed the application stacks to the alpha environment in the first account by using the AWS CDK CLI’s cdk deploy command.The developer is preparing to deploy to the beta environment in a second account for the first time.The developer makes no significant changes to the CDK code between deployments, but the initial deployment in the second account is unsuccessful and returns a NoSuchBucket error.Which command should the developer run before redeployment to resolve this error?Read More →

A developer has setup an Amazon Kinesis Stream with 4 shards to ingest a maximum of 2500 records per second.A Lambda function has been configured to process these records.In which order will these records be processed?Read More →

A company has an application that uses an Amazon S3 bucket for object storage.A developer needs to configure in-transit encryption for the S3 bucket.All the S3 objects containing personal data needs to be encrypted at rest with AWS Key Management Service (AWS KMS) keys, which can be rotated on demand.Which combination of steps will meet these requirements? (Choose two.)Read More →

A company is planning to deploy an application on AWS behind an Elastic Load Balancer.The application uses an HTTP/HTTPS listener and must access the client IP addresses.Which load-balancing solution meets these requirements?Read More →

A company has an application that receives batches of orders from partners every day.The application uses an AWS Lambda function to process the batches.If a batch contains no orders, the Lambda function must publish to an Amazon Simple Notification Service (Amazon SNS) topic as soon as possible.Which combination of steps will meet this requirement with the LEAST implementation effort? (Choose two.)Read More →

An application is experiencing performance issues based on increased demand.This increased demand is on read-only historical records pulled from an Amazon RDS-hosted database with custom views and queries.A developer must improve performance without changing the database structure.Which approach will improve performance and MINIMIZE management overhead?Read More →