Amazon Web Services exams4sure complete Dva-c02 Materials by Alvey q33 vce pdf

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Exam Name:	AWS Certified Developer - Associate
Exam Code:	DVA-C02 Dumps
Vendor:	Amazon Web Services	Certification:	AWS Certified Associate
Questions:	197 Q&A's	Shared By:	alvey

Question 48

A company needs to distribute firmware updates to its customers around the world.

Which service will allow easy and secure control of the access to the downloads at the lowest cost?

Options:

Use Amazon CloudFront with signed URLs for Amazon S3.

Create a dedicated Amazon CloudFront Distribution for each customer.

Use Amazon CloudFront with AWS Lambda@Edge.

Use Amazon API Gateway and AWS Lambda to control access to an S3 bucket.

Discussion

Question 49

A developer is building a new application on AWS. The application uses an AWS Lambda function that retrieves information from an Amazon DynamoDB table. The developer hard coded the DynamoDB table name into the Lambda function code. The table name might change over time. The developer does not want to modify the Lambda code if the table name changes.

Which solution will meet these requirements MOST efficiently?

Options:

Create a Lambda environment variable to store the table name. Use the standard method for the programming language to retrieve the variable.

Store the table name in a file. Store the file in the /tmp folder. Use the SDK for the programming language to retrieve the table name.

Create a file to store the table name. Zip the file and upload the file to the Lambda layer. Use the SDK for the programming language to retrieve the table name.

Create a global variable that is outside the handler in the Lambda function to store the table name.

Discussion

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Question 50

A developer is creating an AWS Lambda function that searches for items from an Amazon DynamoDB table that contains customer contact information- The DynamoDB table items have the customer's email_address as the partition key and additional properties such as customer_type, name, and job_tltle.

The Lambda function runs whenever a user types a new character into the customer_type text input The developer wants the search to return partial matches of all the email_address property of a particular customer_type The developer does not want to recreate the DynamoDB table.

What should the developer do to meet these requirements?

Options:

Add a global secondary index (GSI) to the DynamoDB table with customer_type as the partition key and email_address as the sort key Perform a query operation on the GSI by using the begvns_wth key condition expression With the email_address property

Add a global secondary index (GSI) to the DynamoDB table With ernail_address as the partition key and customer_type as the sort key Perform a query operation on the GSI by using the begins_wtth key condition expression With the email_address property.

Add a local secondary index (LSI) to the DynamoDB table With customer_type as the partition key and email_address as the sort key Perform a query operation on the LSI by using the begins_wlth key condition expression With the email_address property

Add a local secondary Index (LSI) to the DynamoDB table With job_tltle as the partition key and emad_address as the sort key Perform a query operation on the LSI by using the begins_wrth key condition expression With the email_address property

Discussion

Question 51

A developer has code that is stored in an Amazon S3 bucket. The code must be deployed as an AWS Lambda function across multiple accounts in the same AWS Region as the S3 bucket an AWS CloudPormation template that runs for each account will deploy the Lambda function.

What is the MOST secure way to allow CloudFormaton to access the Lambda Code in the S3 bucket?

Options:

Grant the CloudFormation service role the S3 ListBucket and GetObject permissions. Add a bucket policy to Amazon S3 with the principal of "AWS" (account numbers)

Grant the CloudFormation service row the S3 GetObfect permission. Add a Bucket policy to Amazon S3 with the principal of "'"

Use a service-based link to grant the Lambda function the S3 ListBucket and GetObject permissions by explicitly adding the S3 bucket's account number in the resource.

Use a service-based link to grant the Lambda function the S3 GetObject permission Add a resource of "** to allow access to the S3 bucket.