Exam 6: AWS Certified Developer Associate (DVA-C01)

A Developer will be using the AWS CLI on a local development server to manage AWS services. What can be done to ensure that the CLI uses the Developer's IAM permissions when making commands?

What are the steps to using the AWS CLI to launch a templatized serverless application?

A global company has an application running on Amazon EC2 instances that serves image files from Amazon S3. User requests from the browser are causing high traffic, which results in degraded performance. Which optimization solution should a developer implement to increase application performance?

A company needs to encrypt data at rest, but it wants to leverage an AWS managed service using its own master key. Which of the following AWS service can be used to meet these requirements?

A company requires all data that is stored in Amazon DynamoDB tables to be encrypted at rest with keys that are managed by the company. How can a developer meet these requirements WITHOUT changing the application?

The Lambda function below is being called through an API using Amazon API Gateway. The average execution time for the Lambda function is about 1 second. The pseudocode for the Lambda function is as shown in the exhibit. What two actions can be taken to improve the performance of this Lambda function without increasing the cost of the solution? (Select two.)

A development team uses AWS Elastic Beanstalk for application deployment. The team has configured the application version lifecycle policy to limit the number of application versions to 25. However, even with the lifecycle policy, the source bundle is deleted from the Amazon S3 source bucket. What should a developer do in the Elastic Beanstalk application version lifecycle settings to retain the source code in the S3 bucket?

In AWS, which security aspects are the customer's responsibility? (Choose four.)

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?

A developer is planning to use an Amazon API Gateway and AWS Lambda to provide a REST API. The developer will have three distinct environments to manage: development, test, and production. How should the application be deployed while minimizing the number of resources to manage?

A Developer has code running on Amazon EC2 instances that needs read-only access to an Amazon DynamoDB table. What is the MOST secure approach the Developer should take to accomplish this task?

A Developer is developing an application that manages financial transactions. To improve security, multi-factor authentication (MFA) will be required as part of the login protocol. What services can the Developer use to meet these requirements?

A company caches session information for a web application in an Amazon DynamoDB table. The company wants an automated way to delete old items from the table. What is the simplest way to do this?

Company C has recently launched an online commerce site for bicycles on AWS. They have a "Product" DynamoDB table that stores details for each bicycle, such as, manufacturer, color, price, quantity and size to display in the online store. Due to customer demand, they want to include an image for each bicycle along with the existing details. Which approach below provides the least impact to provisioned throughput on the "Product" table?

A Developer wants to encrypt new objects that are being uploaded to an Amazon S3 bucket by an application. There must be an audit trail of who has used the key during this process. There should be no change to the performance of the application. Which type of encryption meets these requirements?

Given the source code for an AWS Lambda function in the local store.py containing a handler function called get_store and the following AWS CloudFormation template: What should be done to prepare the template so that it can be deployed using the AWS CLI command aws cloudformation deploy ?

A Developer is trying to deploy a serverless application using AWS CodeDeploy. The application was updated and needs to be redeployed. What file does the Developer need to update to push that change through CodeDeploy?

A company is using AWS CloudFormation templates to deploy AWS resources. The company needs to update one of its AWS CloudFormation stacks. What can the company do to find out how the changes will impact the resources that are running?

An application running on an Amazon Linux EC2 instance needs to manage the AWS infrastructure. How can the EC2 instance be configured to make AWS API calls securely?

A Developer wants access to make the log data of an application running on an EC2 instance available to systems administrators. Which of the following enables monitoring of this metric in Amazon CloudWatch?