AMAZON DVA-C02 EXAM | EXAM DVA-C02 FLASHCARDS - 100% SAFE SHOPPING EXPERIENCE

Amazon DVA-C02 Exam | Exam DVA-C02 Flashcards - 100% Safe Shopping Experience

Amazon DVA-C02 Exam | Exam DVA-C02 Flashcards - 100% Safe Shopping Experience

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Amazon AWS Certified Developer - Associate Sample Questions (Q331-Q336):

NEW QUESTION # 331
A company is using Amazon OpenSearch Service to implement an audit monitoring system. A developer needs to create an AWS CloudFormation custom resource that is associated with an AWS Lambda function to configure the OpenSearch Service domain. The Lambda function must access the OpenSearch Service domain by using OpenSearch Service internal master user credentials.
What is the MOST secure way to pass these credentials to the Lambda function?

  • A. Use a CloudFormation parameter to pass the master user credentials at deployment to the OpenSearch Service domain's MasterUserOptions and to create a parameter in AWS Systems Manager Parameter Store. Set the NoEcho attribute to true. Create an IAM role that has the ssm:GetParameter permission. Assign the role to the Lambda function. Store the parameter name as the Lambda function's environment variable. Resolve the parameter's value at runtime.
  • B. Use a CloudFormation parameter to pass the master user credentials at deployment to the OpenSearch Service domain's MasterUserOptions and the Lambda function's environment variable. Encrypt the parameter's value by using the AWS Key Management Service (AWS KMS) encrypt command.
  • C. Use a CloudFormation parameter to pass the master user credentials at deployment to the OpenSearch Service domain's MasterUserOptions and the Lambda function's environment variable. Set the NoEcho attribute to true.
  • D. Use CloudFormation to create an AWS Secrets Manager secret. Use a CloudFormation dynamic reference to retrieve the secret's value for the OpenSearch Service domain's MasterUserOptions.Create an IAM role that has the secretsmanager:GetSecretValue permission. Assign the role to the Lambda function. Store the secret's name as the Lambda function's environment variable.Resolve the secret's value at runtime.

Answer: D

Explanation:
Solution (D) is the most secure way to pass the credentials to the Lambda function because it uses AWS Secrets Manager to store the credentials in encrypted form.


NEW QUESTION # 332
A developer needs to perform geographic load testing of an API. The developer must deploy resources to multiple AWS Regions to support the load testing of the API.
How can the developer meet these requirements without additional application code?

  • A. Create and deploy an AWS Lambda function in each desired Region. Configure the Lambda function to create a stack from an AWS CloudFormation template in that Region when the function is invoked.
  • B. Create an AWS Systems Manager document that defines the resources. Use the document to create the resources in the desired Regions.
  • C. Create an AWS CloudFormation template that defines the load test resources. Use the AWS CLI deploy command to create a stack from the template in each Region.
  • D. Create an AWS CloudFormation template that defines the load test resources. Use the AWS CLI create-stack-set command to create a stack set in the desired Regions.

Answer: D


NEW QUESTION # 333
In a move toward using microservices, a company's management team has asked all development teams to build their services so that API requests depend only on that service's data store. One team is building a Payments service which has its own database; the service needs data that originates in the Accounts database. Both are using Amazon DynamoDB.
What approach will result in the simplest, decoupled, and reliable method to get near-real time updates from the Accounts database?

  • A. Use AWS Glue to perform frequent ETL updates from the Accounts database to the Payments database.
  • B. Use Amazon ElastiCache in Payments, with the cache updated by triggers in the Accounts database.
  • C. Use Amazon DynamoDB Streams to deliver all changes from the Accounts database to the Payments database.
  • D. Use Amazon Data Firehose to deliver all changes from the Accounts database to the Payments database.

Answer: C


NEW QUESTION # 334
A developer is testing a RESTful application that is deployed by using Amazon API Gateway and AWS Lambda When the developer tests the user login by using credentials that are not valid, the developer receives an HTTP 405 METHOD_NOT_ALLOWED error The developer has verified that the test is sending the correct request for the resource Which HTTP error should the application return in response to the request?

  • A. HTTP 401
  • B. HTTP 404
  • C. HTTP 503
  • D. HTTP 505

Answer: A

Explanation:
HTTP Status Codes: Each HTTP status code has a specific meaning in RESTful APIs.
HTTP 405 (Method Not Allowed): Indicates that the request method (e.g., POST) is not supported for the specified resource.
HTTP 401 (Unauthorized): Represents a failure to authenticate, which is the appropriate response for invalid login credentials.
Reference:
HTTP Status Codes: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status


NEW QUESTION # 335
A developer is designing an event-driven architecture. An AWS Lambda function that processes data needs to push processed data to a subset of four consumer Lambda functions. The data must be routed based on the value of one field in the data. Which solution will meet these requirements with the LEAST operational overhead?

  • A. Create an Amazon Simple Queue Service (Amazon SQS) queue and event source mapping for each consumer Lambda function. Add message routing logic to the data-processing Lambda function.
  • B. Create an Amazon Simple Notification Service (Amazon SNS) topic. Subscribe the four consumer Lambda functions to the topic. Add message filtering logic to each consumer Lambda function.
    Subscribe the data-processing Lambda function to the SNS topic.
  • C. Create a separate Amazon Simple Notification Service (Amazon SNS) topic and subscription for each consumer Lambda function. Add message routing logic to the data-processing Lambda function to publish to the appropriate topic.
  • D. Create a single Amazon Simple Notification Service (Amazon SNS) topic. Subscribe the four consumer Lambda functions to the topic. Add SNS subscription filter policies to each subscription.Configure the data-processing Lambda function to publish to the topic.

Answer: D

Explanation:
Single SNS topic with subscription filter policies is the most efficient solution with the least operational overhead. By using a single SNS topic and configuring subscription filter policies on each consumer Lambda function, you can route messages based on specific fields in the data without adding any additional processing logic inside the Lambda functions. SNS filters allow you to match specific message attributes and route the data to the correct consumer Lambda functions efficiently.


NEW QUESTION # 336
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