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Amazon DVA-C02 exam tests candidates on a variety of topics related to AWS development, including AWS core services, security, database, and deployment. DVA-C02 exam is designed to assess a candidate's ability to design, develop, and deploy secure and scalable AWS applications using best practices and AWS services.
The DVA-C02 certification exam consists of 65 multiple-choice and multiple-response questions that are to be completed in 130 minutes. DVA-C02 exam covers a range of topics, including AWS core services, database technologies, security and compliance, and deployment and monitoring. Candidates who pass the DVA-C02 Exam demonstrate their ability to develop, deploy, and maintain applications using AWS services in a cost-effective, scalable, and reliable manner. AWS Certified Developer - Associate certification is suitable for developers, DevOps engineers, and solutions architects who want to advance their careers in cloud computing and demonstrate their expertise in AWS.
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Amazon DVA-C02 (AWS Certified Developer - Associate) exam is a certification offered by Amazon Web Services (AWS) for developers who want to demonstrate their expertise in designing, developing, and deploying cloud-based solutions using AWS technologies. DVA-C02 exam validates a candidate's ability to write code using AWS APIs, create and maintain applications using AWS services, and deploy applications on AWS infrastructure. AWS Certified Developer - Associate certification is recommended for developers with one or more years of experience with AWS.
NEW QUESTION # 66
An application that runs on AWS receives messages from an Amazon Simple Queue Service (Amazon SQS) queue and processes the messages in batches. The application sends the data to another SQS queue to be consumed by another legacy application. The legacy system can take up to 5 minutes to process some transaction data.
A developer wants to ensure that there are no out-of-order updates in the legacy system. The developer cannot alter the behavior of the legacy system.
Which solution will meet these requirements?
Answer: B
NEW QUESTION # 67
A developer creates a static website for their department The developer deploys the static assets for the website to an Amazon S3 bucket and serves the assets with Amazon CloudFront The developer uses origin access control (OAC) on the CloudFront distribution to access the S3 bucket The developer notices users can access the root URL and specific pages but cannot access directories without specifying a file name. For example, /products/index.html works, but /products returns an error The developer needs to enable accessing directories without specifying a file name without exposing the S3 bucket publicly.
Which solution will meet these requirements'?
Answer: B
Explanation:
* Problem:Directory access without file names fails.
* S3 Static Website Hosting:
* Configuring S3 as a static website enables automatic serving of index.html for directory requests.
* Bucket policies ensure correct access permissions.
* Updating the CloudFront origin simplifies routing.
* Avoiding Public Exposure:The S3 website endpoint allows CloudFront to access content without making the bucket public.
NEW QUESTION # 68
A financial services company builds a credit card transaction processing application that uses an Amazon API Gateway HTTP API and AWS Lambda functions. The application logs all requests and request parameters to Amazon CloudWatch. The application makes the logs accessible to developer AWS accounts and a separate fraud detection AWS account by using a cross-account IAM role.
The company requires that only the fraud detection account be able to view customer credit card numbers that are associated with the transactions. Developers at the company must not be able to use the credit card numbers for testing or debugging.
The developers create the following data protection policy document snippet:
{
"Name": "data-protection-policy",
"Description": "Credit card redaction",
"Version": "2021-06-01",
"Statement": [{
"Sid": "redact-policy",
"DataIdentifier": [
"arn:aws:dataprotection::aws:data-identifier/CreditCardNumber"
],
"Operation": {
"Deidentify": {
"MaskConfig": {}
}
}
}]
}
Which combination of actions must the developers take to comply with the new policy? (Select TWO.)
Answer: A,D
Explanation:
To meet the requirement that developers cannot view credit card numbers while the fraud detection account can, the solution must (1) ensure the sensitive data is masked at ingestion/storage in CloudWatch Logs, and (2) allow only an authorized principal to view unmasked values.
First, the developers must attach the data protection policy to the CloudWatch log group that receives the API Gateway HTTP API access logs (and/or the Lambda log group if credit card numbers can appear there).
A CloudWatch Logs data protection policy is applied at the log group level and instructs CloudWatch Logs to identify sensitive data using managed data identifiers (for example, CreditCardNumber) and then apply the configured de-identification action (here, masking). Without attaching the policy to the log group, the masking/redaction behavior will not be enforced for newly ingested log events, and developers could still see raw request parameters.
Second, to permit only the fraud detection account to reveal the masked values when necessary, the IAM role that the fraud detection account assumes must have the specific CloudWatch Logs permission to unmask protected data. Granting logs:Unmask to that role enables authorized access to view the sensitive values while keeping them masked for everyone else who lacks that permission (such as developer accounts assuming other roles).
Options A and E are not required for CloudWatch Logs data protection enforcement; the core controls are log- group policy attachment (to perform masking) and IAM authorization (to permit unmasking only for the fraud role). Therefore, the correct combination is C (apply the policy to the log group that captures the HTTP API logs) and B (grant logs:Unmask to the fraud detection role).
NEW QUESTION # 69
A developer creates an Amazon API Gateway REST API that has a usage plan. The REST API sits in front of an AWS Lambda function. The Lambda function calls a third-party fulfillment service that returns standard HTTP status codes. The developer enables API Gateway and Lambda logging in Amazon CloudWatch. CloudWatch metrics for API Gateway show the occurrence of 5XX errors but do not show the occurrence of 4XX errors. The Lambda execution log also states "ERROR Rate limit exceeded from fulfillment service." The developer needs to resolve the errors. Which solution will meet these requirements?
Answer: A
Explanation:
The fulfillment service is returning rate-limit errors, so the Lambda function should retry failed requests using exponential backoff. This reduces request pressure on the third-party service and prevents temporary throttling responses from surfacing as API Gateway 5XX errors.
NEW QUESTION # 70
A company runs an AWS CodeBuild project on medium-sized Amazon EC2 instances. The company wants to cost optimize the project and reduce the provisioning time.
Answer: B
Explanation:
Comprehensive and Detailed Step-by-Step
Option D: Set up Amazon S3 Caching for CodeBuild:
CodeBuild supports S3 caching to store intermediate build artifacts and dependencies. This reduces the time required to download dependencies during subsequent builds, effectively lowering costs and improving build performance.
By using S3 caching, developers can optimize costs without changing the compute type or adding complexity.
Why Other Options Are Incorrect:
Option A: CodeBuild does not have a "reserved capacity fleet" option.
Option B: AWS Lambda cannot be used as the compute mode for CodeBuild projects. CodeBuild uses its own managed build environments.
Option C: CodeBuild already operates on an on-demand basis, so this does not address the need for optimization or reduced provisioning time.
Reference:
AWS CodeBuild Caching Documentation
NEW QUESTION # 71
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