AWS Certified Developer

A Developer created a dashboard for an application using Amazon API Gateway, Amazon S3, AWS Lambda, and Amazon RDS. The Developer needs an authentication mechanism allowing a user to sign in and view the dashboard. It must be accessible from mobile applications, desktops, and tablets, and must remember user preferences across platforms.Which AWS service should the Developer use to support this authentication scenario? A. AWS KMS B. Amazon Cognito C. AWS Directory Service D. Amazon IAM D Co...

A company needs a version control system for collaborative software development. Features of the system must include the following: Support for batches of changes across multiple files Parallel branching Version tracking Which AWS service will meet these requirements? A. AWS CodePipeline B. Amazon S3 C. AWS Code Build D. AWS CodeCommit Correct Answer: D. AWS CodeCommit A company is using continuous integration and continuous delivery systems. A Developer now needs to automate a ...

A Developer is leveraging a Border Gateway Protocol (BGP)-based AWS VPN connection to connect from on-premises to Amazon EC2 instances in theDeveloper's account. The Developer is able to access an EC2 instance in subnet A, but is unable to access an EC2 instance in subnet B in the same VPC.Which logs can the Developer use to verify whether the traffic is reaching subnet B? A. VPN logs B. BGP logs C. VPC Flow Logs D. AWS CloudTrail logs Correct Answer: C. VPC Flow Logs A Developer has ...

A developer is migrating code to an AWS Lambda function that will an Amazon Aurora MySQL database.What is the MOST secure way to authenticate the function to the database? A. Store the database credentials as encrypted parameters in AWS Systems Manager Parameters Store. Obtain the credentials from Systems Manager when the Lambda function needs to connect to the database. B. Store the database credentials in AWS Secrets Manager. Let Secrets Manager handle the rotation of the credentials, as r...

Users Correct Answer: End users Groups Correct Answer: Set of users under a set of permissions Roles Correct Answer: * Assigned AWS resources * Can be used by users or another service Policies Correct Answer: * Document that defines permissions * Can be used by users, groups or roles Programmatic Access Correct Answer: Needs Access Key ID and Secret Access Key Console Access Correct Answer: Access that only needs password False * Can only be viewed at creation Correct ...

A user plans to use RDS as a managed DB platform. Which of the below mentioned features is not supported by RDS? A. Automated backup B. Automated scaling to manage a higher load C. Automated failure detection and recovery D. Automated software patching Correct Answer: B A user has not enabled versioning on an S3 bucket. What will be the version ID of the object inside that bucket? A. 0 B. There will be no version attached C. Null D. Blank Correct Answer: C A user has created a qu...

In a move toward using microservices, a company's Management team has asked all Development teams to build their services so that API requests depend only on that service's data store. One team is building a Payments service which has its own database; the service needs data that originates in the Accounts database. Both are using Amazon DynamoDB.What approach will result in the simplest, decoupled, and reliable method to get near-real time updates from the Accounts database? A. Use Amazon ...

A user plans to use RDS as a managed DB platform. Which of the below mentioned features is not supported by RDS? A. Automated backup B. Automated scaling to manage a higher load C. Automated failure detection and recovery D. Automated software patching - B A user has not enabled versioning on an S3 bucket. What will be the version ID of the object inside that bucket? A. 0 B. There will be no version attached C. Null D. Blank - C A user has created a queue named "myqueue" with SQS. ...

1. Monthly billing for Lambda is based on what? - Execution request and the time it rounded to the nearest 100 ms. 2. Which is a compulsory section in the CloudFormation template? - Resources 3. If an EC2 instance with instance store volume is stopped or terminated, any data on the instance store volume is lost: - True 4. Which of the following statements is true about AWS regions and AZs? - Every region is independent, consists of at least two or more AZs and AZs within regions are interc...