Amazon AWS-Certified-Developer-Associate DVA-001 - AWS Certified Developer Associate 2018 Exam Practice Test Questions

• Question 1

  A developer is developing an application that uses signed requests (Signature Version 4) to call other AWS services The developer has created a canonical request, has created the string to sign, and has calculated signing informationWhich methods could the developer use to complete a signed request? (Select TWO)

  • Add the signature to an HTTP header that is named Authorization
    
  • Add the signature to a session cookie
    
  • Add the signature to an HTTP header that 15 named Authentication
    
  • Add the signature to a query string parameter that is named X-Amz-Signature
    
  • Add the signature to an HTTP header that is named WWW-Authenticate
    

  Show Answer Answer: 4,,5 Next

• Question 2

  A developer is updating an application deployed on AWS Elastic Beanstalk The new version is incompatible with the old version To successfully deploy the update, a full cutover to the new updated version must be performed on all instances at one time, with the ability to roll back changes in case of a deployment failure in the new versionHow can this be performed with the LEAST amount of downtime?

  • Use the Elastic Beanstalk All at once deployment policy to update all instances simultaneously
    
  • Perform an Elastic Beanstalk Rolling with additional batch deployment
    
  • Deploy the new version in a new Elastic Beanstalk environment and swap environment URLs
    
  • Perform an Elastic Beanstalk Rolling deployment
    

  Show Answer Answer: 3 Next

• Question 3

  A developer is implementing authentication and authorization for an application. The developer needs to ensure that the user credentials are never exposed. Which approach should the developer take to meet this requirement?

  • Store the user credentials In Amazon DynamoDB Build an AWS Lambda function to validate the credentials and authorize users
    
  • Deploy a custom authentication and authorization API on an Amazon EC2 instance. Store the user credentials in Amazon S3 and encrypt the credentials using Amazon S3 server-side encryption.
    
  • Use Amazon Cognito to configure a user pool, and use the Cognito API to authenticate and authorize the user
    
  • Store the user credentials In Amazon RDS Enable the encryption option for the Amazon RDS D8 instances Build an API using AWS Lambda to validate the credentials and authorize users
    

  Show Answer Answer: 1 Next

• Question 4

  A developer wants to modify the following AWS Cloud Formation template to embed another CloudFormation stack:Which syntax should the developer add to the blank line of the CloudFormation template to meet this requirement?

  • 'Mapping' : 'AWS::CloudFormation::Stack',
    
  • 'Type' : 'AWS;:CloudFcrmation::NestedStack',
    
  • 'Typ' : 'AWS::CloudFormation::Stack',
    
  • 'Mapping' : 'AWS::CloudFormation::NestedStack',
    

  Show Answer Answer: 1 Next

• Question 5

  An on-premises application is implemented using a Linux, Apache, MySQL and PHP (LAMP) stack. The Developer wants to run this application in AWS.Which of the following sets of AWS services can be used to run this stack?

  • Amazon API Gateway, Amazon S3
    
  • AWS Lambda, Amazon DynamoDB
    
  • Amazon EC2, Amazon Aurora
    
  • Amazon Cognito, Amazon RDS
    
  • Amazon ECS, Amazon EBS
    

  Show Answer Answer: 3 Next