Free Amazon DVA-C02 Exam Questions

Question 1

A developer is writing an application that will retrieve sensitive data from a third-party system. The application will format the data into a PDF file. The PDF file could be more than 1 MB. The application will encrypt the data to disk by using AWS Key Management Service (AWS KMS). The application will decrypt the file when a user requests to download it. The retrieval and formatting portions of the application are complete.

The developer needs to use the GenerateDataKey API to encrypt the PDF file so that the PDF file can be decrypted later. The developer needs to use an AWS KMS symmetric customer managed key for encryption.

Which solutions will meet these requirements?

A : Write the encrypted key from the GenerateDataKey API to disk for later use. Use the plaintext key from the GenerateDataKey API and a symmetric encryption algorithm to encrypt the file.

B : Write the plain text key from the GenerateDataKey API to disk for later use. Use the encrypted key from the GenerateDataKey API and a symmetric encryption algorithm to encrypt the file.

C : Write the encrypted key from the GenerateDataKey API to disk for later use. Use the plaintext key from the GenerateDataKey API to encrypt the file by using the KMS Encrypt API.

D : Write the plain text key from the GenerateDataKey API to disk for later use. Use the encrypted key from the GenerateDataKey API to encrypt the file by using the KMS Encrypt API.

Answer: A

Question 2

A company has an ecommerce application. To track product reviews, the company's development team uses an Amazon DynamoDB table. Every record includes the following • A Review ID a 16-digrt universally unique identifier (UUID) • A Product ID and User ID 16 digit UUlDs that reference other tables • A Product Rating on a scale of 1-5 • An optional comment from the user The table partition key is the Review ID. The most performed query against the table is to find the 10 reviews with the highest rating for a given product. Which index will provide the FASTEST response for this query"?

A : A global secondary index (GSl) with Product ID as the partition key and Product Rating as the sort key

B : A global secondary index (GSl) with Product ID as the partition key and Review ID as the sort key

C : A local secondary index (LSI) with Product ID as the partition key and Product Rating as the sort key

D : A local secondary index (LSI) with Review ID as the partition key and Product ID as the sort key

Answer: A

Question 3

A Developer needs to scan a full DynamoDB 50GB table within non-peak hours. About half of the strongly consistent RCUs are typically used during non-peak hours and the scan duration must be minimized.

How can the Developer optimize the scan execution time without impacting production workloads?

A : crease the RCUs during the scan operation

B : sequential scans

C : ange to eventually consistent RCUs during the scan operation

D : parallel scans while limiting the rate

Answer: D

Question 4

A Developer at a company is working on a CloudFormation template to set up resources. Resources will be defined using code and provisioned based on certain conditions defined in the Conditions section.

Which section of a CloudFormation template cannot be associated with Condition?

A : Outputs

B : Conditions

C : Parameters

D : Resources

Answer: C

Question 5

A company is using Amazon API Gateway to develop an API for its application on AWS. A developer needs to test and generate API responses. Other teams are required to test the API immediately.

What should the developer do to meet these requirements?

A : Set up a mock integration request in API Gateway. Configure the method's integration request and integration response to associate a response with a given status code.

B : Set up the request validators in the API's OpenAPI definition file. Import the OpenAPI definitions into API Gateway to test the API.

C : Set up a gateway response for the API in API Gateway. Configure response headers with hardcoded HTTP status codes and responses.

D : Set up a request parameter-based Lambda authorizer to control access to the API. Configure the Lambda function with the necessary mapping template.

Answer: A