AWS-Certified-Developer-Associate Free Practice Test

- (Exam Topic 3)
An ecommerce application is using Amazon Simple Notification Service (Amazon SNS) with an AWS Lambda subscription to save all new orders into an Amazon DynamoDB table The company wants to record all the orders that are more than a certain amount of money in a separate table The company wants to avoid changes to the processes that post orders to Amazon SNS or the current Lambda function that saves the orders to the DynamoDB table
How can a developer implement this feature with the LEAST change to the existing application?

1. A. Create another Lambda subscription with the SNS message attribute value matching a filter option to save the appropriate orders to a separate table
2. B. Create another SNS topic, and also send orders in that topic Create a Lambda subscription with a numeric value filter option to save the appropriate orders to a separate table
3. C. Create anotherftambda subscnption with the SNS message numeric value matching a filter option to save the appropriate orders to a separate table
4. D. Modify the Lambda code to filter the orders and save the appropriate orders to a separate table

Correct Answer: D

- (Exam Topic 2)
A development team is designing a mobile app that requires multi-factor authentication Which steps should be taken to achieve this? (Select TWO)

1. A. Use Amazon Cognito to create a user pool and create users in the user pool
2. B. Send multi-factor authentication text codes to users with the Amazon SNS Publish API call in the app code
3. C. Enable multi-factor authentication for the Amazon Cognito user pool
4. D. Use AWS IAM to create IAM users
5. E. Enable multi-factor authentication for the users created in AWS IAM.

Correct Answer: AC

- (Exam Topic 3)
A developer is automating a new application deployment with AWS Serverless Application Model (AWS SAM) The new application has one AWS Lambda function and one Amazon S3 bucket The Lambda function must access the S3 bucket to only read objects
How should the developer configure AWS SAM to grant the necessary read privilege to the S3 bucket?

1. A. Reference a second Lambda authorizer function
2. B. Add a custom S3 bucket policy to the Lambda function
3. C. Create an Amazon Simple Queue Service (SQS) topic for only S3 object reads Reference the topic in the template
4. D. Add the S3ReadPolicy template to the Lambda function's execution role

Correct Answer: D

- (Exam Topic 1)
Which of the following items are required to allow an application deployed on an EC2 instance to write data to a DynamoDB table?
Assume that no security Keys are allowed to be stored on the EC2 instance. Choose 2 answers

1. A. Create an IAM User that allows write access to the DynamoDB table.
2. B. Add an IAM Role to a running EC2 instance.
3. C. Add an IAM User to a running EC2 Instance.
4. D. Launch an EC2 Instance with the IAM Role included in the launch configuration.
5. E. Create an IAM Role that allows write access to the DynamoDB table.
6. F. Launch an EC2 Instance with the IAM User included in the launch configuration.

Correct Answer: BE
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/iam-roles-for-amazon-ec2.html#attach-iam-role

- (Exam Topic 1)
A Developer is creating an application that needs to locate the public IPv4 address of the Amazon EC2 instance on which it runs. How can the application locate this information?

1. A. Get the instance metadata by retrieving http://169.254.169.254/latest/metadata/.
2. B. Get the instance user data by retrieving http://169.254.169.254/latest/userdata/.
3. C. Get the application to run IFCONFIG to get the public IP address.
4. D. Get the application to run IPCONFIG to get the public IP address.

Correct Answer: A