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Amazon DVA-C02 Exam Overview:

Certification Vendor:	Amazon Web Services (AWS)
Exam Name:	AWS Certified Developer – Associate (DVA-C02)
Exam Number:	DVA-C02
Available Languages:	French, Traditional Chinese, Spanish (Latin America), Korean, English, Simplified Chinese, German, Portuguese (Brazil), Japanese
Exam Price:	USD 150
Related Certifications:	AWS Certified Solutions Architect – Associate AWS Certified DevOps Engineer – Professional AWS Certified Cloud Practitioner
Real Exam Qty:	65
Exam Format:	Multiple choice, Multiple response
Exam Duration:	130 minutes
Certificate Validity Period:	3 years
Passing Score:	720 (scaled score)
Recommended Training:	AWS Skill Builder – Developer Learning Plan AWS Certified Developer – Associate Exam Guide
Exam Registration:	AWS Certification Official Registration Pearson VUE AWS Exams
Sample Questions:	Amazon DVA-C02 Sample Questions
Exam Way:	Online proctored exam via Pearson VUE or in-person at authorized testing centers
Pre Condition:	No mandatory prerequisites. Recommended: 1+ year of hands-on experience developing and maintaining AWS-based applications.
Official Syllabus URL:	https://aws.amazon.com/certification/certified-developer-associate/

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Amazon DVA-C02 (AWS Certified Developer - Associate) Certification Exam is an exam designed for professionals who want to demonstrate their expertise in developing and maintaining applications on the Amazon Web Services (AWS) platform. AWS Certified Developer - Associate certification exam is ideal for developers who are experienced in AWS technologies and are looking to validate their skills and knowledge by obtaining a globally recognized certification.

Amazon AWS Certified Developer - Associate Sample Questions (Q408-Q413):

NEW QUESTION # 408
A company hosts a public application on AWS. The application sends fog data to Amazon CloudWatch. The log data includes space-delimited log events.
A developer needs to ensure that the company can filter the logs on important keywords so that known application exception flows are traceable in the CloudWatch log group.
Which solution will meet these requirements?

A. Create an AWS Lambda function to filter the keywords.
B. Create an Amazon Kinesis data stream to ingest the application logs.
C. Create an Amazon Data Firehose delivery stream to stream the application logs.
D. Create a subscription filter for the CloudWatch log events.

Answer: D

Explanation:
A CloudWatch Logs subscription filter allows real-time filtering of log events based on keywords or patterns. This enables the company to trace specific exception flows efficiently within the log group, meeting the requirement with minimal complexity.

NEW QUESTION # 409
A company has an Amazon DynamoDB table that contains records of users that have signed up for a trial of the company's product. The company is using a spreadsheet to track data about the product trial. The company needs to ensure the spreadsheet is automatically updated with the latest information when individual trials begin, are updated, or finish.
Which solution will meet these requirements?

A. Create a DynamoDB Accelerator (DAX) cluster from the table. Set the view type to new image.
Create an AWS Lambda function that uses the cluster data to update the spreadsheet. Subscribe the Lambda function to the cluster.
B. Enable a DynamoDB stream for the table. Set the view type to old image. Create an AWS Lambda function that uses the stream data to update the spreadsheet. Subscribe the Lambda function to the stream.
C. Enable a DynamoDB stream for the table. Set the view type to new image. Create an AWS Lambda function that uses the stream data to update the spreadsheet. Subscribe the Lambda function to the stream.
D. Create a DynamoDB Accelerator (DAX) cluster from the table. Set the view type to old image.
Create an AWS Lambda function that uses the cluster data to update the spreadsheet. Subscribe the Lambda function to the cluster.

Answer: C

NEW QUESTION # 410
A developer needs to set up an API to provide access to an application and its resources. The developer has a TLS certificate. The developer must have the ability to change the default base URL of the API to a custom domain name. The API users are distributed globally. The solution must minimize API latency.

A. Create an Amazon CloudFront distribution that uses an AWS Lambda@Edge function to process API requests. Import the TLS certificate into AWS Certificate Manager and CloudFront. Add the custom domain name as an alias resource record set that is for the CloudFront distribution.
B. Create an Amazon CloudFront distribution that uses CloudFront Functions to process API requests.Import the TLS certificate into AWS Certificate Manager and CloudFront. Add the custom domain name as an alias resource record set that is for the CloudFront distribution.
C. Create an Amazon API Gateway REST API. Use the private endpoint type. Import the TLS certificate into AWS Certificate Manager. Create a custom domain name for the REST API. Route traffic to the custom domain name. Disable the default endpoint for the REST API.
D. Create an Amazon API Gateway REST API. Use the edge-optimized endpoint type. Import the TLS certificate into AWS Certificate Manager. Create a custom domain name for the REST API. Route traffic to the custom domain name. Disable the default endpoint for the REST API.

Answer: D

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
* Option C: Edge-Optimized API Gateway with Custom Domain Name:
* Edge-Optimized API Gateway: This endpoint type automatically leverages the Amazon CloudFront global distribution network, minimizing latency for API users distributed globally.
* Custom Domain Name: API Gateway supports custom domain names for APIs. Importing the TLS certificate into AWS Certificate Manager (ACM) and associating it with the custom domain name ensures secure connections.
* Disabling the Default Endpoint: Prevents direct access via the default API Gateway URL, enforcing the use of the custom domain name.
* Why Other Options Are Incorrect:
* Option A: While CloudFront can distribute API requests globally, API Gateway with edge- optimized endpoints already provides this functionality natively without requiring Lambda@Edge.
* Option B: Private endpoint types are used for internal access via VPC, which does not meet the global distribution and low-latency requirement.
* Option D: CloudFront Functions are not needed because API Gateway's edge-optimized endpoints handle global distribution efficiently.
References:
* Amazon API Gateway Custom Domain Names
* Amazon API Gateway Endpoint Types

NEW QUESTION # 411
A developer is building an API to support a shopping cart application. The application's backend is an AWS Lambda function that integrates with Amazon API Gateway. The developer wants to have the ability to test new versions of the application in a development environment before pushing changes to production.
The developer needs to test the application by using mock endpoints for external payment processor APIs. The tests must allow quality assurance testers to make calls against a separate development stage without impacting the production environment. When the tests are finished, the developer needs to publish new Lambda code safely and must have the option to perform rollbacks if issues occur.
Which solution will meet these requirements in the MOST secure way?

A. Deploy new Lambda function versions directly to production. Use Amazon CloudWatch Logs to monitor each deployment and roll back if errors appear.
B. Configure an API Gateway stage for development. Integrate the development stage with a Lambda function alias that points to a new function version. Use a mock integration for the payment processor APIs.
C. Configure provisioned concurrency for the Lambda function. Run test traffic against the live production API Gateway endpoint.
D. Replace the Lambda function backend with a container that runs on Amazon ECS with the AWS Fargate launch type. Test all changes in a production environment before deployment.

Answer: B

Explanation:
A separate API Gateway development stage isolates QA testing from production traffic.
Connecting that stage to a Lambda alias that points to a new published function version allows controlled testing and safer promotion of code. API Gateway mock integrations can simulate the external payment processor APIs, and Lambda versions with aliases provide a reliable rollback path if issues occur.

NEW QUESTION # 412
An online food company provides an Amazon API Gateway HTTP API 1o receive orders for partners. The API is integrated with an AWS Lambda function. The Lambda function stores the orders in an Amazon DynamoDB table.
The company expects to onboard additional partners Some to me panthers require additional Lambda function to receive orders. The company has created an Amazon S3 bucket. The company needs 10 store all orders and updates m the S3 bucket for future analysis How can the developer ensure that an orders and updates are stored to Amazon S3 with the LEAST development effort?

A. Modify the Lambda function to punish to a new Amazon. Simple Lambda function receives orders.Subscribe a new Lambda function to the topic. Configure the new Lambda function to write to the S3 bucket as updates come through the topic.
B. Use Amazon Kinesis Data Streams to create a new data stream. Modify the Lambda function to publish orders to the oats stream Configure in data stream to write to the S3 bucket.
C. Create a new Lambda function and a new API Gateway API endpoint. Configure the new Lambda function to write to the S3 bucket. Modify the original Lambda function to post updates to the new API endpoint.
D. Enable DynamoDB Streams on me DynamoOB table. Create a new lambda function. Associate the stream's Amazon Resource Name (ARN) with the Lambda Function Configure the Lambda function to write to the S3 bucket as records appear in the table's stream.

Answer: D

Explanation:
This solution will ensure that all orders and updates are stored to Amazon S3 with the least development effort because it uses DynamoDB Streams to capture changes in the DynamoDB table and trigger a Lambda function to write those changes to the S3 bucket. This way, the original Lambda function and API Gateway API endpoint do not need to be modified, and no additional services are required. Option A is not optimal because it will require more development effort to create a new Lambda function and a new API Gateway API endpoint, and to modify the original Lambda function to post updates to the new API endpoint. Option B is not optimal because it will introduce additional costs and complexity to use Amazon Kinesis Data Streams to create a new data stream, and to modify the Lambda function to publish orders to the data stream. Option D is not optimal because it will require more development effort to modify the Lambda function to publish to a new Amazon SNS topic, and to create and subscribe a new Lambda function to the topic.
References: Using DynamoDB Streams, Using AWS Lambda with Amazon S3

NEW QUESTION # 413
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