DVA-C02 Exam Dumps - AWS Certified Developer - Associate

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Question # 169

A developer manages a serverless application that uses an AWS Lambda function. The application periodically interacts with an external API by using short-lived authentication keys . Currently, the developer embeds the authentication keys directly in the Lambda function code. This approach requires manual updates and introduces security risks and operational inefficiencies.

The developer needs a secure and automated solution for authentication key storage, retrieval, and rotation.

Which solution will meet these requirements?

Store the authentication keys in AWS Secrets Manager. Configure the Lambda function to retrieve and cache the keys by using Lambda extensions.

Store the authentication keys in an Amazon S3 bucket. Configure the Lambda function to retrieve the keys from the bucket during each invocation.

Store the authentication keys in Lambda environment variables and manually update the values when needed.

Store the authentication keys in AWS Systems Manager Parameter Store. Configure the Lambda function to retrieve the keys during every invocation.

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Question # 170

A company has a serverless application that uses Amazon API Gateway and AWS Lambda functions to expose a RESTful API. The company uses a continuous integration and continuous delivery (CI/CD) workflow to deploy the application to multiple environments. The company wants to implement automated integration tests after deployment.

A developer needs to set up the necessary infrastructure and processes to automate the deployment and integration tests for the serverless application.

Configure API Gateway stages to represent each application environment. Use AWS SAM templates to manage the infrastructure for the Lambda functions and API resources. Use AWS CodeBuild to implement automated deployment tests to validate the deployments in each stage.

Configure API Gateway stages to represent each application environment. Use AWS CloudFormation to manage the infrastructure for the Lambda functions and API resources. Use AWS CodeBuild to implement automated deployment tests to validate the deployments in each stage.

Use AWS CodePipeline to create a CI/CD pipeline. Configure API Gateway stages to represent each application environment. Use AWS CloudFormation templates to manage the infrastructure for the Lambda functions and API resources. Use AWS CodeBuild to implement automated deployment tests to validate the deployments in each stage.

Use AWS CloudFormation to create and deploy the application infrastructure in each application environment. Use the AWS CLI to invoke Lambda functions to perform deployment tests after each deployment.

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Question # 171

A company deploys a new application to AWS. The company is streaming application logs to Amazon CloudWatch Logs. The company ' s development team must receive notification by email when the word " ERROR " appears in any log lines. A developer sets up an Amazon SNS topic and subscribes the development team to the topic.

What should the developer do next to meet the requirements?

Select the appropriate log group. Create a CloudWatch metric filter with " ERROR " as the search term. Create an alarm on this metric that notifies the SNS topic when the metric is 1 or higher.

In CloudWatch Logs Insights, select the appropriate log group. Create a metric query to search for the term " ERROR " in the logs. Create an alarm on this metric that notifies the SNS topic when the metric is 1 or higher.

Select the appropriate log group. Create an SNS subscription filter with " ERROR " as the filter pattern. Select the SNS topic as the destination.

Create a CloudWatch alarm that includes " ERROR " as a filter pattern, a log group dimension that defines the appropriate log group, and a destination that notifies the SNS topic.

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Question # 172

A gaming application stores scores for players in an Amazon DynamoDB table that has four attributes: user_id, user_name, user_score, and user_rank. The users are allowed to update their names only. A user is authenticated by web identity federation.

Which set of conditions should be added in the policy attached to the role for the dynamodb:PutItem API call?

" Condition " : { " ForAllValues:StringEquals " : { " dynamodb:LeadingKeys " : [ " ${www.amazon.com:user_id} " ], " dynamodb:Attributes " : [ " user_name " ]}}

" Condition " : { " ForAllValues:StringEquals " : { " dynamodb:LeadingKeys " : [ " ${www.amazon.com:user_name} " ], " dynamodb:Attributes " : [ " user_id " ]}}

" Condition " : { " ForAllValues:StringEquals " : { " dynamodb:LeadingKeys " : [ " ${www.amazon.com:user_id} " ], " dynamodb:Attributes " : [ " user_name " , " user_id " ]}}

" Condition " : { " ForAllValues:StringEquals " : { " dynamodb:LeadingKeys " : [ " ${www.amazon.com:user_name} " ], " dynamodb:Attributes " : [ " username " , " userid " ]}}

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Question # 173

A developer needs to troubleshoot an AWS Lambda function in a development environment. The Lambda function is configured in VPC mode and needs to connect to an existing Amazon RDS for SOL Server DB instance. The DB instance is deployed in a private subnet and accepts connections by using port 1433.

When the developer tests the function, the function reports an error when it tries to connect to the database.

Which combination of steps should the developer take to diagnose this issue? (Select TWO.)

Check that the function ' s security group has outbound access on port 1433 to the DB instance ' s security group. Check that the DB instance ' s security group has inbound access on port 1433 from the function ' s security group.

Check that the function ' s security group has Inbound access on port 1433 from the DB Instance ' s security group. Check that the DB instance ' s security group has outbound access on port 1433 to the function ' s security group.

Check that the VPC is set up for a NAT gateway. Check that the DB instance has the public access option turned on.

Check that the function ' s execution role permissions include rds:DescribeDBInstances, rds: ModifyDB Instance, and rds:DescribeDBSecurityGroups for the DB instance.

Check that the function ' s execution rote permissions include ec2: CreateNetworklnterface. ec2: DescribeNetworklnterfaces. and ec2: DeleteNetworklnterface.

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Question # 174

A developer is creating AWS CloudFormation templates to manage an application ' s deployment in Amazon Elastic Container Service (Amazon ECS) through AWS CodeDeploy. The developer wants to automatically deploy new versions of the application to a percentage of users before the new version becomes available for all users.

How should the developer manage the deployment of the new version?

Modify the CloudFormation template to include a Transform section and the AWS::CodeDeploy::BlueGreen hook.

Deploy the new version in a new CloudFormation stack. After testing is complete, update the application ' s DNS records for the new stack.

Run CloudFormation stack updates on the application stack to deploy new application versions when they are available.

Create a nested stack for the new version. Include a Transform section and the AWS::CodeDeploy::BlueGreen hook.

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Question # 175

A developer is creating an AWS Lambda function that searches for Items from an Amazon DynamoDQ table that contains customer contact information. The DynamoDB table items have the customers as the partition and additional properties such as customer -type, name, and job_title.

The Lambda function runs whenever a user types a new character into the customer_type text Input. The developer wants to search to return partial matches of all tne email_address property of a particular customer type. The developer does not want to recreate the DynamoDB table.

What should the developer do to meet these requirements?

Add a global secondary index (GSI) to the DynamoDB table with customer-type input, as the partition key and email_address as the sort key. Perform a query operation on the GSI by using the begins with key condition expression with the email_address property.

Add a global secondary index (GSI) to the DynamoDB table with email_address as the partition key and customer_type as the sort key. Perform a query operation on the GSI by using the begine_with key condition expresses with the email. Address property.

Add a local secondary index (LSI) to the DynemoOB table with customer_type as the partition Key and email_address as the sort Key. Perform a quick operation on the LSI by using the begine_with Key condition expression with the email-address property.

Add a local secondary index (LSI) to the DynamoDB table with job-title as the partition key and email_address as the sort key. Perform a query operation on the LSI by using the begins_with key condition expression with the email_address property.

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Question # 176

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 ' ?

Update the CloudFront distribution ' s settings to index.html as the default root object is set

Update the Amazon S3 bucket settings and enable static website hosting. Specify index html as the Index document Update the S3 bucket policy to enable access. Update the CloudFront distribution ' s origin to use the S3 website endpoint

Create a CloudFront function that examines the request URL and appends index.html when directories are being accessed Add the function as a viewer request CloudFront function to the CloudFront distribution ' s behavior.

Create a custom error response on the CloudFront distribution with the HTTP error code set to the HTTP 404 Not Found response code and the response page path to /index html Set the HTTP response code to the HTTP 200 OK response code

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