DVA-C02 Test Engine & DVA-C02 Exam Introduction

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Amazon AWS Certified Developer - Associate Sample Questions (Q210-Q215):

NEW QUESTION # 210
A developer is creating a serverless application that uses an AWS Lambda function. The developer will use AWS CloudFormation to deploy the application. The application will write logs to Amazon CloudWatch Logs. The developer has created a log group in a CloudFormation template for the application to use. The developer needs to modify the CloudFormation template to make the name of the log group available to the application at runtime.
Which solution will meet this requirement?

A. Pass the log group's Amazon Resource Name (ARN) as an environment variable to the Lambda function.
B. Use the AWS::Include transform in CloudFormation to provide the log group's name to the application.
C. Use the CloudFormation template's Mappings section to specify the log group's name for the application.
D. Pass the log group's name to the application in the user data section of the CloudFormation template.

Answer: A

NEW QUESTION # 211
A development team is creating a serverless application that uses AWS Lambda functions. The team wants to streamline a testing workflow by sharing test events across multiple developers within thesame AWS account. The team wants to ensure all developers can use consistent test events without compromising security.

A. Export test events as JSON files. Store the files in an Amazon S3 bucket. Configure granular IAM permissions to allow the developers to access the S3 bucket.
B. Store test events in an Amazon DynamoDB table. Create an AWS Lambda function to retrieve shared test events for the developers.
C. Set up a Git repository to store test events. Provide the developers with access to the repository.
D. Configure test events to be shareable. Configure granular IAM permissions to allow the developers to access shared test events.

Answer: A

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
* Option A: Use Amazon S3 for Shared Test Events:
* Storing JSON test event files in an S3 bucket provides a centralized, cost-effective, and highly available solution.
* Granular IAM policies can restrict access to specific developers or roles, ensuring security while maintaining consistency for shared test events.
* This solution has minimal operational overhead and integrates easily with existing workflows.
* Why Other Options Are Incorrect:
* Option B:Using DynamoDB and a Lambda function introduces unnecessary complexity for a relatively simple requirement. S3 provides a simpler and more cost-efficient solution.
* Option C:AWS Lambda test events are not inherently shareable across developers, making this option invalid.
* Option D:Using a Git repository adds operational overhead and requires developers to clone
/update repositories for access, which is more cumbersome compared to S3.

NEW QUESTION # 212
A company stores customer credit reports in an Amazon S3 bucket. An analytics service uses standard Amazon S3 GET requests to access the reports. A developer must implement a solution to redact personally identifiable information (PII) from the reports before the reports reach the analytics service.

A. Create an Amazon Simple Notification Service (Amazon SNS) topic. Implement message data protection. Refactor the analytics service to publish data access requests to the SNS topic.
B. Load the S3 objects into Amazon Redshift by using a COPY command. Implement dynamic data masking. Refactor the analytics service to read from Amazon Redshift.
C. Set up an S3 Object Lambda function. Attach the function to an S3 Object Lambda Access Point.
Program the function to call a PII redaction API.
D. Use AWS Key Management Service (AWS KMS) to implement encryption in the S3 bucket. Re-upload all the existing S3 objects. Give the kms permission to the analytics service.

Answer: C

Explanation:
Comprehensive Detailed Step by Step Explanation with All AWS Developer References:
To redact PII from S3 objects before they are accessed by the analytics service, the most efficient solution is to useS3 Object Lambda. S3 Object Lambda allows you to add your own code (Lambda function) to process and transform data when it is retrieved from Amazon S3. You can attach a Lambda function to an S3 Object Lambda Access Point, which in this case would run a redaction API to remove PII from the reports.
* Operational Efficiency: S3 Object Lambda handles data processing on the fly, without requiring the data to be permanently transformed or moved to another service (like Amazon Redshift).
* Alternatives:
* Option A: Loading the data into Amazon Redshift would require refactoring the analytics service and maintaining an additional data pipeline, increasing complexity.
* Option C: Using AWS KMS for encryption protects data at rest and in transit, but it does not address PII redaction.
* Option D: SNS is a messaging service and does not support direct data transformation.

NEW QUESTION # 213
A company uses Amazon DynamoDB as a data store for its order management system. The company frontend application stores orders in a DynamoDB table. The DynamoDB table is configured to send change events to a DynamoDB stream. The company uses an AWS Lambda function to log and process the incoming orders based on data from the DynamoDB stream.
An operational review reveals that the order quantity of incoming orders is sometimes set to 0. A developer needs to create a dashboard that will show how many unique customers this problem affects each day.
What should the developer do to implement the dashboard?

A. Use Amazon Athena to query AWS CtoudTrail API logs for API calls. Implement an Athena query that selects the number of unique customers for orders with order quantity equal to 0 and groups the results in 1-day periods. Add the Athena query to an Amazon CloudWatch dashboard.
B. Configure the Lambda function to send events to Amazon EventBridge. Create an EventBridge rule that groups the number of unique customers for orders with order quantity equal to 0 in 1-day periods. Add a CloudWatch dashboard as the target of the rule.
C. Grant the Lambda function's execution role permissions to upload logs to Amazon CloudWatch Logs.
Implement a CloudWatch Logs Insights query that selects the number of unique customers for orders with order quantity equal to 0 and groups the results in 1-day periods. Add the CloudWatch Logs Insights query to a CloudWatch dashboard.
D. Turn on custom Amazon CloudWatch metrics for the DynamoDB stream of the DynamoOB table.
Create a CloudWatch alarm that groups the number of unique customers for orders with order quantity equal to 0 in 1-day periods. Add the CloudWatch alarm to a CloudWatch dashboard.

Answer: C

NEW QUESTION # 214
A developer is writing an AWS Lambda function. The developer wants to log key events that occur while the Lambda function runs. The developer wants to include a unique identifier to associate the events with a specific function invocation. The developer adds the following code to the Lambda function:

Which solution will meet this requirement?

A. Obtain the request identifier from the AWS request ID field in the event object. Configure the application to write logs to standard output.
B. Obtain the request identifier from the AWS request ID field in the event object. Configure the application to write logs to a file.
C. Obtain the request identifier from the AWS request ID field in the context object. Configure the application to write logs to standard output.
D. Obtain the request identifier from the AWS request ID field in the context object. Configure the application to write logs to a file.

Answer: C

Explanation:
https://docs.aws.amazon.com/lambda/latest/dg/nodejs-context.html https://docs.aws.amazon.com/lambda
/latest/dg/nodejs-logging.html
There is no explicit information for the runtime, the code is written in Node.js.
AWS Lambda is a service that lets developers run code without provisioning or managing servers. The developer can use the AWS request ID field in the context object to obtain a unique identifier for each function invocation. The developer can configure the application to write logs to standard output, which will be captured by Amazon CloudWatch Logs. This solution will meet the requirement of logging key events with a unique identifier.
References:
* [What Is AWS Lambda? - AWS Lambda]
* [AWS Lambda Function Handler in Node.js - AWS Lambda]
* [Using Amazon CloudWatch - AWS Lambda]

NEW QUESTION # 215
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