DVA-C02 무료 덤프문제 온라인 액세스

A developer is writing an application that processes data delivered into an Amazon S3 bucket. The data is delivered approximately 10 times per day , and the developer expects the processing to complete in less than
1 minute on average.
How can the developer deploy and invoke the application with the LOWEST cost and LOWEST latency ?

• A.Deploy the application as an AWS Lambda function and invoke it by using an Amazon CloudWatch scheduled event.
• B.Deploy the application on an Amazon EC2 instance and poll the S3 bucket for new objects.
• C.Deploy the application as an AWS Lambda function and invoke it by using an Amazon S3 event notification.
• D.Deploy the application as an AWS Lambda function and invoke it by using an Amazon CloudWatch alarm that is triggered by an S3 object upload.

A company runs a web application on Amazon EC2 instances behind an Application Load Balancer. The application uses Amazon DynamoDB as its database. The company wants to ensure high performance for reads and writes.
Which solution will meet these requirements MOST cost-effectively?

• A.Create an Amazon DynamoDB Accelerator (DAX) cluster. Configure the application to use the DAX endpoint.
• B.Use DynamoDB provisioned throughput mode for the table. Create an Amazon CloudWatch alarm on the ThrottledRequests metric. Invoke an AWS Lambda function to increase provisioned capacity.
• C.Configure auto-scaling for the DynamoDB table with a target utilization of 70%. Set the minimum and maximum capacity units based on the expected workload.
• D.Use DynamoDB on-demand capacity mode for the table. Specify a maximum throughput higher than the expected peak read and write capacity units.

A developer created an AWS Lambda function that performs a series of operations that involve multiple AWS services. The function ' s duration time is higher than normal. To determine the cause of the issue, the developer must investigate traffic between the services without changing the function code Which solution will meet these requirements?

• A.Review the AWS Config logs in Amazon Cloud Watch.
• B.Enable AWS X-Ray active tracing in the Lambda function Review the logs in X-Ray
• C.Review the Amazon CloudWatch logs that are associated with the Lambda function.
• D.Configure AWS CloudTrail View the trail logs that are associated with the Lambda function.

A company runs a payment application on Amazon EC2 instances behind an Application Load Balance The EC2 instances run in an Auto Scaling group across multiple Availability Zones The application needs to retrieve application secrets during the application startup and export the secrets as environment variables These secrets must be encrypted at rest and need to be rotated every month.
Which solution will meet these requirements with the LEAST development effort?

• A.Store the secrets in AWS Secrets Manager Provision a new customer master key Use the key to encrypt the secrets Enable automatic rotation Configure an Amazon EC2 user data script to programmatically retrieve the secrets during the startup and export as environment variables
• B.Save the secrets as strings in AWS Systems Manager Parameter Store and use the default AWS Key Management Service (AWS KMS) key Configure an Amazon EC2 user data script to retrieve the secrets during the startup and export as environment variables Configure an AWS Lambda function to rotate the secrets in Parameter Store every month.
• C.Save the secrets in a text file and store the text file in Amazon S3 Provision a customer managed key Use the key for secret encryption in Amazon S3 Read the contents of the text file and read the export as environment variables Configure S3 Object Lambda to rotate the text file every month
• D.Save the secrets as base64 encoded environment variables in the application properties. Retrieve the secrets during the application startup. Reference the secrets in the application code. Write a script to rotate the secrets saved as environment variables.

A developer must use multi-factor authentication (MFA) to access data in an Amazon S3 bucket that is in another AWS account. Which AWS Security Token Service (AWS STS) API operation should the developer use with the MFA information to meet this requirement?

• A.AssumeRole
• B.GetFederationToken
• C.AssumeRoleWithSAML
• D.AssumeRoleWithWebidentity