Boost your cloud computing career with the DVA-C02 AWS Developer Associate certification. Prepare now and pass the AWS-C

1. C E R T S GR A DE High Grade and Valuable Preparation Stuff High Grade and Valuable Preparation Stuff Amazon DVA-C02 AWS Developer Associate (AWS-CDA) Questions And Answers PDF Format: For More Information – Visit link below: https://www.certsgrade.com/ Version = Version = Product Visit us athttps://www.certsgrade.com/pdf/dva-c02/

2. Latest Version: 6.0 Question: 1 A company is considering moving to the AWS serverless stack. What are two benefits of serverless stacks? (Select TWO.) Response: A.No server management B.It costs less than Amazon Elastic Compute Cloud (Amazon EC2). C.Flexible scaling D.There are no benefits to serverless stacks. Answer: A,C Question: 2 A developer wants to track the performance of an application that runs on a fleet of Amazon EC2 instances. The developer wants to view and track statistics, such as the average request latency and the maximum request latency, across the fleet. The developer wants to receive immediate notification if the average response time exceeds a threshold. Which solution will meet these requirements? Response: A.Configure a cron job on each EC2 instance to measure the response time and update a log file stored in an Amazon S3 bucket every minute. Use an Amazon S3 event notification to invoke an AWS Lambda function that reads the log file and writes new entries to an Amazon OpenSearch Service cluster. Visualize the results in OpenSearch Dashboards. Configure OpenSearch Service to send an alert to an Amazon Simple Notification Service (Amazon SNS) topic when the response time exceeds the threshold. B.Configure the application to write the response times to the system log. Install and configure the Amazon Inspector agent on the EC2 instances to continually read the logs and send the response times to Amazon EventBridge (Amazon CloudWatch Events). View the metrics graphs in the EventBridge (CloudWatch Events) console. Configure an EventBridge (CloudWatch Events) custom rule to send an Amazon Simple Notification Service (Amazon SNS) notification when the average of the response time metric exceeds the threshold. C.Configure the application to write the response times to a log file. Install and configure the Amazon CloudWatch agent on the EC2 instances to stream the application log to CloudWatch Logs. Create a metric filter of the response time from the log. View the metrics graphs in the CloudWatch console. Create a CloudWatch alarm to send an Amazon Simple Notification Service (Amazon SNS) notification when the average of the response time metric exceeds the threshold. D.Install and configure AWS Systems Manager Agent (SSM Agent) on the EC2 instances to monitor the response time and send the response time to Amazon CloudWatch as a custom metric. View the metrics Visit us athttps://www.certsgrade.com/pdf/dva-c02/

3. graphs in Amazon QuickSight. Create a CloudWatch alarm to send an Amazon Simple Notification Service (Amazon SNS) notification when the average of the response time metric exceeds the threshold. Answer: C Question: 3 Your application triggers events that must be delivered to all your partners. The exact partner list is constantly changing: some partners run a highly available endpoint, and other partners’ endpoints are online only a few hours each night. Your application is mission-critical, and communication with your partners must not introduce delay in its operation. A delay in delivering the event to one partner cannot delay delivery to other partners. What is an appropriate way to code this? Response: A.Implement an Amazon SWF task to deliver the message to each partner. Initiate an Amazon SWF workflow execution. B.Send the event as an Amazon SNS message. Instruct your partners to create an HTTP. Subscribe their HTTP endpoint to the Amazon SNS topic. C.Create one SQS queue per partner. Iterate through the queues and write the event to each one. Partners retrieve messages from their queue. D.Send the event as an Amazon SNS message. Create one SQS queue per partner that subscribes to the Amazon SNS topic. Partners retrieve messages from their queue. Answer: D Question: 4 Which statements about DynamoDB are true? Response: A.DynamoDB uses a pessimistic locking model B.DynamoDB uses optimistic concurrency control C.DynamoDB uses conditional writes for consistency D.DynamoDB restricts item access during reads E.DynamoDB restricts item access during writes Answer: B,C Question: 5 Which scripting languages are supported in a CloudFormation template? Visit us athttps://www.certsgrade.com/pdf/dva-c02/

4. (Choose two.) Response: A.YAML B.Ruby DSL C.JSON D.Python Answer: A,C Question: 6 Which party is responsible for patching and maintaining underlying clusters when you use the AWS Fargate launch type? Response: A.The customer B.Amazon Web Services (AWS) C.Docker D.Independent software vendors Answer: B Question: 7 You are creating a DynamoDB table with the following attributes: - PurchaseOrderNumber (partition key) - CustomerID - PurchaseDate - TotalPurchaseValue One of your applications must retrieve items from the table to calculate the total value of purchases for a particular customer over a date range. What secondary index do you need to add to the table? Response: A.Local secondary index with a partition key of CustomerID and sort key of PurchaseDate; project the TotalPurchaseValue attribute B.Local secondary index with a partition key of PurchaseDate and sort key of CustomerID; project the TotalPurchaseValue attribute C.Global secondary index with a partition key of CustomerID and sort key of PurchaseDate; project the TotalPurchaseValue attribute D.Global secondary index with a partition key of PurchaseDate and sort key of CustomerID; project the TotalPurchaseValue attribute Visit us athttps://www.certsgrade.com/pdf/dva-c02/

5. Answer: C Question: 8 Which operation could return temporarily inconsistent results? Response: A.Getting an object from Amazon S3 after it was initially created B.Selecting a row from an Amazon RDS database after it was inserted C.Selecting a row from an Amazon RDS database after it was deleted D.Getting an object from Amazon S3 after it was deleted Answer: D Question: 9 A developer is designing a web application that allows the users to post comments and receive near real-time feedback. Which architectures meet these requirements? (Select TWO.) Response: A.Create an AWS AppSync schema and corresponding APIs. Use an Amazon DynamoDB table as the data store. B.Create a WebSocket API in Amazon API Gateway. Use an AWS Lambda function as the backend and an Amazon DynamoDB table as the data store. C.Create an AWS Elastic Beanstalk application backed by an Amazon RDS database. Configure the application to allow long-lived TCP/IP sockets. D.Create a GraphQL endpoint in Amazon API Gateway. Use an Amazon DynamoDB table as the data store. E.Enable WebSocket on Amazon CloudFront. Use an AWS Lambda function as the origin and an Amazon Aurora DB cluster as the data store. Answer: A,B Question: 10 What is the development practice used when a failure of the other end occurs, and instead of an endless loop, we stop trying and create a “ping” until the service is back up to resume operations? Response: A.Bulkheads B.Circuit breaker Visit us athttps://www.certsgrade.com/pdf/dva-c02/

6. C.Exponential backoff D.Try and Except Answer: B Visit us athttps://www.certsgrade.com/pdf/dva-c02/

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