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Amazon AWS Certified Developer - Associate Sample Questions (Q522-Q527):

NEW QUESTION # 522
An application that runs on AWS Lambda requires access to specific highly confidential objects in an Amazon S3 bucket. In accordance with the principle of least privilege, a company grants access to the S3 bucket by using only temporary credentials.
How can a developer configure access to the S3 bucket in the MOST secure way?

A. Hardcode the credentials that are required to access the S3 objects in the application code. Use the credentials to access the required S3 objects.
B. Create a Lambda function execution role. Attach a policy to the role that grants access to specific objects in the S3 bucket.
C. Create a secret access key and access key ID with permission to access the S3 bucket. Store the key and key ID in AWS Secrets Manager. Configure the application to retrieve the Secrets Manager secret and use the credentials to access the S3 objects.
D. Create a secret access key and access key ID with permission to access the S3 bucket. Store the key and key ID as environment variables in Lambda. Use the environment variables to access the required S3 objects.

Answer: B

Explanation:
https://docs.aws.amazon.com/lambda/latest/operatorguide/least-privilege.html

NEW QUESTION # 523
A developer is creating a service that uses an Amazon S3 bucket for image uploads. The service will use an AWS Lambda function to create a thumbnail of each image Each time an image is uploaded the service needs to send an email notification and create the thumbnail The developer needs to configure the image processing and email notifications setup.
Which solution will meet these requirements?

A. Create an Amazon Simple Notification Service (Amazon SNS) topic Configure S3 event notifications with a destination of the SNS topic Subscribe the Lambda function to the SNS topic Create an email notification subscription to the SNS topic
B. Create an Amazon Simple Queue Service (Amazon SQS) queue. Send S3 event notifications to Amazon EventBridge. Create an EventBndge rule that runs the Lambda function when images are uploaded to the S3 bucket Create an EventBridge rule that sends notifications to the SQS queue Create an email notification subscription to the SQS queue
C. Create an Amazon Simple Notification Service (Amazon SNS) topic. Configure S3 event notifications with a destination of the SNS topic. Subscribe the Lambda function to the SNS topic. Create an Amazon Simple Queue Service (Amazon SQS) queue Subscribe the SQS queue to the SNS topic Create an email notification subscription to the SQS queue.
D. Create an Amazon Simple Queue Service (Amazon SQS) queue Configure S3 event notifications with a destination of the SQS queue Subscribe the Lambda function to the SQS queue Create an email notification subscription to the SQS queue.

Answer: A

Explanation:
Explanation
This solution will allow the developer to receive notifications for each image uploaded to the S3 bucket, and also create a thumbnail using the Lambda function. The SNS topic will serve as a trigger for both the Lambda function and the email notification subscription. When an image is uploaded, S3 will send a notification to the SNS topic, which will trigger the Lambda function to create the thumbnail and also send an email notification to the specified email address.

NEW QUESTION # 524
A developer is optimizing an AWS Lambda function and wants to test the changes in production on a small percentage of all traffic. The Lambda function serves requests to a RE ST API in Amazon API Gateway. The developer needs to deploy their changes and perform a test in production without changing the API Gateway URL.
Which solution will meet these requirements?

A. Define a function version for the currently deployed production Lambda function. Update the API Gateway endpoint to reference the new Lambda function version. Upload and publish the optimized Lambda function code. Update the API Gateway endpoint to use the $LATEST version of the Lambda function. Deploy the API to the production API Gateway stage.
B. Define an alias on the $LATEST version of the Lambda function. Update the API Gateway endpoint to reference the new Lambda function alias. Upload and publish the optimized Lambda function code. On the production API Gateway stage, define a canary release and set the percentage of traffic to direct to the canary release. Update the API Gateway endpoint to use the
$LATEST version of the Lambda function. Publish to the canary stage.
C. Define a function version for the currently deployed production Lambda function. Update the API Gateway endpoint to reference the new Lambda function version. Upload and publish the optimized Lambda function code. Update the API Gateway endpoint to use the $LATEST version of the Lambda function. Deploy a new API Gateway stage.
D. Define a function version for the currently deployed production Lambda function. Update the API Gateway endpoint to reference the new Lambda function version. Upload and publish the optimized Lambda function code. On the production API Gateway stage, define a canary release and set the percentage of traffic to direct to the canary release. Update the API Gateway endpoint to use the $LATEST version of the Lambda function. Publish the API to the canary stage.

Answer: D

NEW QUESTION # 525
A developer needs to modify an application architecture to meet new functional requirements.
Application data is stored in Amazon DynamoDB and processed for analysis in a nightly batch.
The system analysts do not want to wait until the next day to view the processed data and have asked to have it available in near-real time.
Which application architecture pattern would enable the data to be processed as it is received?

A. Client-server driven
B. Schedule driven
C. Fan-out driven
D. Event driven

Answer: D

NEW QUESTION # 526
An AWS Lambda function is running in a company's shared AWS account. The function needs to perform an additional ec2:DescribeInstances action that is directed at the company's development accounts. A developer must configure the required permissions across the accounts.
How should the developer configure the permissions to adhere to the principle of least privilege?

A. Create an IAM role in the shared account. Add the ec2:DescribeInstances permission to the role.
Establish a trust relationship between the development accounts for this role. Update the Lambda function IAM role in the shared account by adding the iam:AssumeRole permissions.
B. Create an IAM role in the development accounts. Add the ec2:DescribeInstances permission to the role. Establish a trust relationship with the shared account for this role. Update the Lambda function IAM role in the shared account by adding the ec2:DescribeInstances permission to the role.
C. Create an IAM role in the development accounts. Add the ec2:DescribeInstances permission to the role. Establish a trust relationship with the shared account for this role. Update the Lambda function IAM role in the shared account by adding the iam:AssumeRole permissions.
D. Create an IAM role in the shared account. Add the ec2:DescribeInstances permission to the role.
Establish a trust relationship between the development accounts for this role. Update the Lambda function IAM role in the shared account by adding the ec2:DescribeInstances permission to the role.

Answer: C

NEW QUESTION # 527
......

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