Developer Associate (Page 22)

An application needs to use the IP address of the client in its processing.The application has been moved into AWS and has been placed behind an Application Load Balancer (ALB).However, all the client IP addresses now appear to be the same.The application must maintain the ability to scale horizontally.Based on this scenario, what is the MOST cost-effective solution to this problem?Read More →

A company is building a compute-intensive application that will run on a fleet of Amazon EC2 instances.The application uses attached Amazon EBS disks for storing data.The application will process sensitive information and all the data must be encrypted.What should a Developer do to ensure the data is encrypted on disk without impacting performance?Read More →

A developer is receiving HTTP 400: ThrottlingException errors intermittently when calling the Amazon CloudWatch API.When a call fails, no data is retrieved.What best practice should first be applied to address this issue?Read More →

An application needs to use the IP address of the client in its processing.The application has been moved into AWS and has been placed behind an ApplicationLoad Balancer (ALB).However, all the client IP addresses now appear to be the same.The application must maintain the ability to scale horizontally.Based on this scenario, what is the MOST cost-effective solution to this problem?Read More →

A company has an existing application that has hardcoded database credentials.A developer needs to modify the existing application.The application is deployed in two AWS Regions with an active-passive failover configuration to meet company’s disaster recovery strategy.The developer needs a solution to store the credentials outside the code.The solution must comply with the company’s disaster recovery strategy.Which solution will meet these requirements in the MOST secure way?Read More →

A Development team is working on a case management solution that allows medical claims to be processed and reviewed.Users log in to provide information related to their medical and financial situations.As part of the application, sensitive documents such as medical records, medical imaging, bank statements, and receipts are uploaded to Amazon S3.All documents must be securely transmitted and stored.All access to the documents must be recorded for auditing.What is the MOST secure approach?Read More →

A developer has built a market application that stores pricing data in Amazon DynamoDB with Amazon ElastiCache in front.The prices of items in the market change frequently.Sellers have begun complaining that, after they update the price of an item, the price does not actually change in the product listing.What could be causing this issue?Read More →

A Company runs continuous integration/continuous delivery (CI/CD) pipelines for its application on AWS CodePipeline.A Developer must write unit tests and run them as part of the pipelines before staging the artifacts for testing.How should the Developer incorporate unit tests as part of CI/CD pipelines?Read More →

A developer is working on an AWS Lambda function that accesses Amazon DynamoDB.The Lambda function must retrieve an item and update some of its attributes, or create the item if it does not exist.The Lambda function has access to the primary key.Which IAM permissions should the developer request for the Lambda function to achieve this functionality?Read More →

An application uses Amazon Kinesis Data Streams to ingest and process large streams of data records in real time.Amazon EC2 instances consume and process the data from the shards of the Kinesis data stream by using Amazon Kinesis Client Library (KCL).The application handles the failure scenarios and does not require standby workers.The application reports that a specific shard is receiving more data than expected.To adapt to the changes in the rate of data flow, the`hot` shard is resharded.Assuming that the initial number of shards in the Kinesis data stream is 4, and after resharding the number of shards increased to 6, what is the maximum number of EC2 instances that can be deployed to process data from all the shards?Read More →