Free Amazon DVA-C02 Exam Questions

Question 1

An application that is deployed to Amazon EC2 is using Amazon DynamoDB. The app cation calls theDynamoDB REST API Periodically the application receives a ProvisionedThroughputExceededExceptionerror when the application writes to a DynamoDB table.Which solutions will mitigate this error MOST cost-effectively^ (Select TWO)

A : Modify the application code to perform exponential back off when the error is received.

B : Modify the application to use the AWS SDKs for DynamoDB.

C : Increase the read and write throughput of the DynamoDB table.

D : Create a DynamoDB Accelerator (DAX) cluster for the DynamoDB table.

E : Create a second DynamoDB table Distribute the reads and writes between the two tables.

Answer: A,B

Question 2

An IT department uses Amazon S3 to store sensitive images. After more than 1 year, the company moves the images into archival storage. The company rarely accesses the images, but the company wants a storage solution that maximizes resiliency. The IT department needs access to the images that have been moved to archival storage within 24 hours.

Which solution will meet these requirements MOST cost-effectively?

A : Use S3 Standard-Infrequent Access (S3 Standard-IA) to store the images. Use S3 Glacier Deep Archive with standard retrieval to store and retrieve archived images.

B : Use S3 Standard-Infrequent Access (S3 Standard-IA) to store the images. Use S3 Glacier Deep Archive with bulk retrieval to store and retrieve archived images.

C : Use S3 Intelligent-Tiering to store the images. Use S3 Glacier Deep Archive with standard retrieval to store and retrieve archived images.

D : Use S3 One Zone-Infrequent Access (S3 One Zone-IA) to store the images. Use S3 Glacier Deep Archive with bulk retrieval to store and retrieve archived images.

Answer: D

Question 3

When a developer tries to run an AWS Code Build project, it raises an error because the length of allenvironment variables exceeds the limit for the combined maximum of characters.What is the recommended solution?

A : Add the export LC-_ALL " on _ US, tuft " command to the pre _ build section to ensure POSIXLocalization.

B : Use Amazon Cognate to store key-value pairs for large numbers of environment variables

C : Update the settings for the build project to use an Amazon S3 bucket for large numbers of environmentvariables

D : Use AWS Systems Manager Parameter Store to store large numbers ot environment variables

Answer: D

Question 4

A developer created a Node.js-based AWS Lambda function by using a container image of an AWS OS-onlybase image. There is a new security patch for Node.js that must be patched to the new Lambda function.Which solution will meet this requirement?

A : Set the runtime update mode of the Lambda function to Auto.

B : Patch the runtime version by redeploying the same version of the Lambda function.

C : Rebuild the Lambda container code with the latest version of the AWS OS base image. Publish a newversion of the Lambda function.

D : Rebuild the Lambda container code with the latest Node.js patch version. Publish a new version of theLambda function.

Answer: D

Question 5

A developer needs to use Amazon DynamoDB to store customer orders. The developer ' s company requiresall customer data to be encrypted at rest with a key that the company generates.What should the developer do to meet these requirements?

A : Create the DynamoDB table with encryption set to None. Code the application to use the key to decryptthe data when the application reads from the table. Code the application to use the key to encrypt thedata when the application writes to the table.

B : Store the key by using AW5 KMS. Choose an AVVS KMS customer managed key during creation ofthe DynamoDB table. Provide the Amazon Resource Name (ARN) of the AWS KMS key.

C : Store the key by using AWS KMS. Create the DynamoDB table with default encryption. Include thekms:Encrypt parameter with the Amazon Resource Name (ARN) of the AWS KMS key when using theDynamoDB SDK.

D : Store the key by using AWS KMS. Choose an AWS KMS AWS managed key during creation of theDynamoDB table. Provide the Amazon Resource Name (ARN) of the AWS KMS key.

Answer: B