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Amazon AWS Certified Developer Associate Exam Sample Questions (Q31-Q36):

NEW QUESTION # 31
A developer is creating as AWS lambda function that generates a new file each time it runs. Each new file must be checked into an AWS CodeCommit repository hosted in the same AWS account.
How should the developer accomplish this?

A. Use an AWS SDK to instantiate a CodeCommit Client. Invoke the put _ file method to add the file to the repository.
B. Upload the new file to an Amazon S3 bucket. Create an AWS step Function to accept S3 events. In the step Function, add the new file to the repository.
C. After the new file is created in Lambda, use cURL to invoke the CodeCommit API. Send the file to the repository.
D. When the Lambda function starts, use the Git CLI to Clone the repository. Check the new file into the cloned repository and push the change.

Answer: B

NEW QUESTION # 32
A developer needs to create an application that supports Security Assertion Markup Language (SAML) and Facebook authentication It must also allow access to AWS services, such as Amazon DynamoDB.
Which AWS service or feature will meet these requirements with the LEAST amount of additional coding?

A. Amazon Lambda@Edge
B. AWSAppSync
C. Amazon Cognito user pools
D. Amazon Cognito identity pools

Answer: D

Explanation:
Reference:
https://aws.amazon.com/blogs/mobile/amazon-cognito-user-pools-supports-federation-with-saml/

NEW QUESTION # 33
A company maintains an application responsible for processing several thousand external callbacks each day.
The company's System administrators want to know how many callbacks are being received on a rolling basis, and they want this data available for 10 days. The company also wants the ability to issue automated alerts if the number of callbacks exceeds the defined thresholds.
What is the MOST cost-effective way to address the need to track and alert on these statistics?

A. Push callback data to Amazon Kinesis Data Streams and invoke an AWS Lambda function that stores data in Amazon DynamoDB and sends the required alerts.
B. Push callback data to an Amazon RDS database that can be queried to show historical data and to alert on exceeded thresholds.
C. Push callback data to Amazon CloudWatch as a custom metric and use the CloudWatch alerting mechanisms to alert System Administrators.
D. Push callback data to AWS X-Ray and use AWS Lambda to query, display, and alert on exceeded thresholds.

Answer: A

NEW QUESTION # 34
A developer is changing the configuration for a CPU-intensive AWS Lambda function that runs once an hour.
The function usually takes 45 seconds to run, but sometimes the run time is up to 1 minute. The timeout parameter is set to 3 minutes, and all other parameters are set to default.
The developer needs to optimize the run time of this function.
Which solution will meet this requirement?

A. Increase the function's reserved concurrency
B. Increase the function's memory.
C. Redeploy the function within the default VPC
D. Redeploy the function by using Lambda layers

Answer: C

NEW QUESTION # 35
A company is developing a new online game that will run on top of Amazon ECS. Four distinct Amazon ECS services will be part of the architecture, each requiring specific permissions to various AWS services. The company wants to optimize the use of the underlying Amazon EC2 instances by bin packing the containers based on memory reservation.
Which configuration would allow the Development team to meet these requirements MOST securely?

A. Create a new Identity and Access Management (IAM) instance profile containing the required permissions for the various ECS services, then associate that instance role with the underlying EC2 instances.
B. Create four distinct IAM roles, each containing the required permissions for the associated ECS service, then, create an IAM group and configure the ECS cluster to reference that group.
C. Create four distinct IAM roles, each containing the required permissions for the associated ECS service, then configure each ECS task definition to reference the associated IAM role.
D. Create four distinct IAM roles, each containing the required permissions for the associated ECS service, then configure each ECS service to reference the associated IAM role.

Answer: C

Explanation:
https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task-placement-strategies.html.

NEW QUESTION # 36
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