AWS-Certified-Developer-Associate Free Practice Test

- (Exam Topic 1)
Which of the following platforms are supported by Elastic Beanstalk? Choose 2 answers

1. A. Apache Tomcat
2. B. .NET
3. C. IBM Websphere
4. D. Oracle JBoss
5. E. Jetty

Correct Answer: AB
https://docs.aws.amazon.com/elasticbeanstalk/latest/platforms/platforms-supported.html

- (Exam Topic 3)
A developer has code stored in an Amazon S3 bucket The code must be deployed as an AWS Lambda function across multiple accounts in the same Region as the S3 bucket The Lambda function will be deployed using an AWS CloudFormation template that is run for each account
What is the MOST secure approach to allow access to the Lambda code in the S3 bucket?

1. A. Grant the CloudFormation execution role S3 list and get permissions Add a bucket policy to Amazon S3 with the Pnncipal of "AWS": [account numbers].
2. B. Grant the CloudFormation execution role S3 get permissions Add a bucket policy to Amazon S3 with the Principal of "".
3. C. Use a service-based link to grant the Lambda function S3 list and get permissions by explicitly adding the S3 bucket's account number in the resource
4. D. Use a service-based link to grant the Lambda function S3 get permissions and add a Resource of "*" to allow access to the S3 bucket.

Correct Answer: A

- (Exam Topic 2)
A company is creating a REST service using an Amazon API Gateway with AWS Lambda integration. The service must run different versions for testing purposes.
What would be the BEST way to accomplish this?

1. A. Use an X-Version header to denote which version is being called and pass that header to the Lambda function(s)
2. B. Create an API Gateway Lambda authorizer to route API clients to the correct API version
3. C. Create an API Gateway resource policy to isolate versions and provide context to the Lambda function(s)
4. D. Deploy the API versions as unique stages with unique endpoints and use stage variables to provide further context

Correct Answer: A
The service run different versions for testing purposes. means different stages, stage variable is the way to go.

- (Exam Topic 4)
A developer deployed an application to an Amazon EC2 instance. The application needs to know the public IPv4 address of the instance. How can the application find this information?

1. A. Query the instance metadata from http://169.254.169.254/latest/meta-data/.
2. B. Query the instance user data from http://169.254.169.254/latest/user-data/.
3. C. Query the Amazon Machine Image (AMI) information from http://169.254.169.254/latest/meta-data/ami/.
4. D. Check the hosts file of the operating system.

Correct Answer: A

- (Exam Topic 2)
A Developer has a stateful web server on-premises that is being migrated to AWS. The Developer must have greater elasticity in the new design.
How should the Developer re-factor the application to make it more elastic? (Choose two.)

1. A. Use pessimistic concurrency on Amazon DynamoDB
2. B. Use Amazon CloudFront with an Auto Scaling group
3. C. Use Amazon CloudFront with an AWS Web Application Firewall
4. D. Store session state data in an Amazon DynamoDB table
5. E. Use an ELB with an Auto Scaling group

Correct Answer: DE