Amazon DVA-C02 Question Answers

Question # 21

A company is creating an application that processes csv files from Amazon S3 A developer has created an S3 bucket The developer has also created an AWS Lambda function to process the csv files from the S3 bucket Which combination of steps will invoke the Lambda function when a csv file is uploaded to Amazon S3? (Select TWO.) 

A. Create an Amazon EventBridge rule Configure the rule with a pattern to match the S3object created event
B. Schedule an Amazon EventBridge rule to run a new Lambda function to scan the S3bucket.
C. Add a trigger to the existing Lambda function. Set the trigger type to EventBridge Selectthe Amazon EventBridge rule.
D. Create a new Lambda function to scan the S3 bucket for recently added S3 objects
E. Add S3 Lifecycle rules to invoke the existing Lambda function

Show / Hide Answer

---

Question # 22

A developer is creating a service that uses an Amazon S3 bucket for image uploads. The service will use an AWS Lambda function to create a thumbnail of each image Each time an image is uploaded the service needs to send an email notification and create the thumbnail The developer needs to configure the image processing and email notifications setup. Which solution will meet these requirements? 

A. Create an Amazon Simple Notification Service (Amazon SNS) topic Configure S3 eventnotifications with a destination of the SNS topic Subscribe the Lambda function to the SNStopic Create an email notification subscription to the SNS topic
B. Create an Amazon Simple Notification Service (Amazon SNS) topic. Configure S3 eventnotifications with a destination of the SNS topic. Subscribe the Lambda function to the SNStopic. Create an Amazon Simple Queue Service (Amazon SQS) queue Subscribe the SQSqueue to the SNS topic Create an email notification subscription to the SQS queue.
C. Create an Amazon Simple Queue Service (Amazon SQS) queue Configure S3 eventnotifications with a destination of the SQS queue Subscribe the Lambda function to theSQS queue Create an email notification subscription to the SQS queue.
D. Create an Amazon Simple Queue Service (Amazon SQS) queue. Send S3 eventnotifications to Amazon EventBridge. Create an EventBndge rule that runs the Lambdafunction when images are uploaded to the S3 bucket Create an EventBridge rule thatsends notifications to the SQS queue Create an email notification subscription to the SQSqueue

Show / Hide Answer

---

Question # 23

A company has a web application that runs on Amazon EC2 instances with a custom Amazon Machine Image (AMI) The company uses AWS CloudFormation to provision the application The application runs in the us-east-1 Region, and the company needs to deploy the application to the us-west-1 Region An attempt to create the AWS CloudFormation stack in us-west-1 fails. An error message states that the AMI ID does not exist. A developer must resolve this error with a solution that uses the least amount of operational overhead Which solution meets these requirements? 

A. Change the AWS CloudFormation templates for us-east-1 and us-west-1 to use an AWSAMI. Relaunch the stack for both Regions.
B. Copy the custom AMI from us-east-1 to us-west-1. Update the AWS CloudFormationtemplate for us-west-1 to refer to AMI ID for the copied AMI Relaunch the stack
C. Build the custom AMI in us-west-1 Create a new AWS CloudFormation template tolaunch the stack in us-west-1 with the new AMI ID
D. Manually deploy the application outside AWS CloudFormation in us-west-1.

Show / Hide Answer

---

Question # 24

A company built an online event platform For each event the company organizes quizzes and generates leaderboards that are based on the quiz scores. The company stores the leaderboard data in Amazon DynamoDB and retains the data for 30 days after an event is complete The company then uses a scheduled job to delete the old leaderboard data The DynamoDB table is configured with a fixed write capacity. During the months when many events occur, the DynamoDB write API requests are throttled when the scheduled delete job runs. A developer must create a long-term solution that deletes the old leaderboard data and optimizes write throughput Which solution meets these requirements? 

A. Configure a TTL attribute for the leaderboard data
B. Use DynamoDB Streams to schedule and delete the leaderboard data
C. Use AWS Step Functions to schedule and delete the leaderboard data.
D. Set a higher write capacity when the scheduled delete job runs

Show / Hide Answer

---

Question # 25

A company has an analytics application that uses an AWS Lambda function to process transaction data asynchronously A developer notices that asynchronous invocations of the Lambda function sometimes fail When failed Lambda function invocations occur, the developer wants to invoke a second Lambda function to handle errors and log details. Which solution will meet these requirements? 

A. Configure a Lambda function destination with a failure condition Specify Lambdafunction as the destination type Specify the error-handling Lambda function's AmazonResource Name (ARN) as the resource
B. Enable AWS X-Ray active tracing on the initial Lambda function. Configure X-Ray tocapture stack traces of the failed invocations. Invoke the error-handling Lambda function byincluding the stack traces in the event object.
C. Configure a Lambda function trigger with a failure condition Specify Lambda function asthe destination type Specify the error-handling Lambda function's Amazon Resource Name(ARN) as the resource
D. Create a status check alarm on the initial Lambda function. Configure the alarm toinvoke the error-handling Lambda function when the alarm is initiated. Ensure that thealarm passes the stack trace in the event object.

Show / Hide Answer

---

Question # 26

A company's developer has deployed an application in AWS by using AWS CloudFormation The CloudFormation stack includes parameters in AWS Systems Manager Parameter Store that the application uses as configuration settings. The application can modify the parameter values When the developer updated the stack to create additional resources with tags, the developer noted that the parameter values were reset and that the values ignored the latest changes made by the application. The developer needs to change the way the company deploys the CloudFormation stack. The developer also needs to avoid resetting the parameter values outside the stack. Which solution will meet these requirements with the LEAST development effort? 

A. Modify the CloudFormation stack to set the deletion policy to Retain for the ParameterStore parameters.
B. Create an Amazon DynamoDB table as a resource in the CloudFormation stack to holdconfiguration data for the application Migrate the parameters that the application ismodifying from Parameter Store to the DynamoDB table
C. Create an Amazon RDS DB instance as a resource in the CloudFormation stack. Createa table in the database for parameter configuration. Migrate the parameters that theapplication is modifying from Parameter Store to the configuration table
D. Modify the CloudFormation stack policy to deny updates on Parameter Storeparameters

Show / Hide Answer

---

Question # 27

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

Show / Hide Answer

---

Question # 28

A developer is working on a web application that uses Amazon DynamoDB as its data store The application has two DynamoDB tables one table that is named artists and one table that is named songs The artists table has artistName as the partition key. The songs table has songName as the partition key and artistName as the sort key The table usage patterns include the retrieval of multiple songs and artists in a single database operation from the webpage. The developer needs a way to retrieve this information with minimal network traffic and optimal application performance. Which solution will meet these requirements'? 

A. Perform a BatchGetltem operation that returns items from the two tables. Use the list ofsongName artistName keys for the songs table and the list of artistName key for the artiststable.
B. Create a local secondary index (LSI) on the songs table that uses artistName as thepartition key Perform a query operation for each artistName on the songs table that filtersby the list of songName Perform a query operation for each artistName on the artists table
C. Perform a BatchGetltem operation on the songs table that uses thesongName/artistName keys. Perform a BatchGetltem operation on the artists table thatuses artistName as the key.
D. Perform a Scan operation on each table that filters by the list of songName/artistNamefor the songs table and the list of artistName in the artists table.

Show / Hide Answer

---

Question # 29

A developer uses AWS CloudFormation to deploy an Amazon API Gateway API and an AWS Step Functions state machine The state machine must reference the API Gateway API after the CloudFormation template is deployed The developer needs a solution that uses the state machine to reference the API Gateway endpoint. Which solution will meet these requirements MOST cost-effectively? 

A. Configure the CloudFormation template to reference the API endpoint in theDefinitionSubstitutions property for the AWS StepFunctions StateMachme resource.
B. Configure the CloudFormation template to store the API endpoint in an environmentvariable for the AWS::StepFunctions::StateMachine resourc Configure the state machine toreference the environment variable
C. Configure the CloudFormation template to store the API endpoint in a standard AWS:SecretsManager Secret resource Configure the state machine to reference the resource
D. Configure the CloudFormation template to store the API endpoint in a standardAWS::AppConfig;:ConfigurationProfile resource Configure the state machine to referencethe resource.

Show / Hide Answer

---

Question # 30

A developer deployed an application to an Amazon EC2 instance The application needs to know the public IPv4 address of the instance How can the application find this information? 

A. Query the instance metadata from http./M69.254.169.254. latestmeta-data/.
B. Query the instance user data from http '169 254.169 254. latest/user-data/
C. Query the Amazon Machine Image (AMI) information from http://169.254.169.254/latest/meta-data/ami/.
D. Check the hosts file of the operating system

Show / Hide Answer

---

<1234567891011121314151617181920>

---

Download All 608 Questions Check Customers Feedbacks