Free Amazon DVA-C02 Exam Questions

Question 1

A developer is creating an application that uses an AWS Lambda function to transform and load data from an Amazon S3 bucket. When the developer tests the application, the developer finds that some invocations of the Lambda function are slower than others. The developer needs to update the Lambda function to have predictable invocation durations that run with low latency. Any initialization activities, such as loading libraries and instantiating clients, must run during allocation time rather than during actual function invocations. Which combination of steps will meet these requirements? (Select TWO.)

A : Create a schedule group in Amazon EventBridge Scheduler to invoke the Lambda function.

B : Configure provisioned concurrency for the Lambda function to have the necessary number of execution environments.

C : Use the SLATEST version of the Lambda function.

D : Configure reserved concurrency for the Lambda function to have the necessary number of execution environments.

E : Deploy changes, and publish a new version of the Lambda function.

Answer: B,D

Question 2

A developer updates an AWS Lambda function that is integrated with an Amazon API Gateway API. The APIserves as the backend for a web application. The developer must test the updated Lambda function withoutaffecting production users .Which solution will meet these requirements in the MOST operationally efficient way?

A : Create a canary deployment on the existing API stage and test by using the production URL.

B : Change the API endpoint type to private and test by using the production URL.

C : Create a new API Gateway stage for testing and use stage variables to route traffic to the updatedLambda function.

D : Deploy a separate CloudFormation stack that duplicates the production API and Lambda function.

Answer: C

Question 3

A company is creating an application that processes csv files from Amazon S3 A developer has created an S3bucket The developer has also created an AWS Lambda function to process the csv files from the S3 bucketWhich 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 S3 object createdevent

B : Schedule an Amazon EventBridge rule to run a new Lambda function to scan the S3 bucket.

C : Add a trigger to the existing Lambda function. Set the trigger type to EventBridge Select the AmazonEventBridge 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

Answer: A,E

Question 4

A company caches session information for a web application in an Amazon DynamoDB table. The companywants an automated way to delete old items from the table.What is the simplest way to do this?

A : Write a script that deletes old records; schedule the script as a cron job on an Amazon EC2 instance.

B : Add an attribute with the expiration time; enable the Time To Live feature based on that attribute.

C : Each day, create a new table to hold session data; delete the previous day ' s table.

D : Add an attribute with the expiration time; name the attribute ItemExpiration.

Answer: B

Question 5

A developer needs to store configuration variables for an application. The developer needs to set an expirationdate and time for me configuration. The developer wants to receive notifications. Before the configurationexpires. Which solution will meet these requirements with the LEAST operational overhead?

A : Create a standard parameter in AWS Systems Manager Parameter Store Set Expiation and ExpirationNotification policy types.

B : Create a standard parameter in AWS Systems Manager Parameter Store Create an AWS Lambdafunction to expire the configuration and to send Amazon Simple Notification Service (Amazon SNS)notifications.

C : Create an advanced parameter in AWS Systems Manager Parameter Store Set Expiration andExpiration Notification policy types.

D : Create an advanced parameter in AWS Systems Manager Parameter Store Create an Amazon EC2instance with a corn job to expire the configuration and to send notifications.

Answer: C