Free Amazon DVA-C01 Exam Dumps and DVA-C01 Exam Questions

Question No: 11

MultipleChoice

A company is providing read access to objects in an Amazon S3 bucket for different customers The company uses 1AM permissions to restnct access to the S3 bucket The customers can access only their own files

Due to a regulation requirement the company needs to enforce encryption in transit for interactions with Amazon S3

Which solution will meet these requirements?

Options

AAdd a bucket policy to the S3 bucket to deny S3 actions when the aws SecureTransport condition is equal to false.

BAdd a bucket policy to the S3 bucket to deny S3 actions when the s3 x-amz-acl condition is equal to public-read

CAdd an IAM policy to the IAM users to enforce the usage of the AWS SDK.

DA Add an IAM policy to the IAM users that allows S3 actions when the s3 x-amz-acl condition is equal to bucket-owner-read

Question No: 12

MultipleChoice

A company requires objects that are stored in Amazon S3 to be encrypted. The company is currently using server-side encryption with AWS KMS managed encryption keys (SSE-KMS) A developer needs to optimize the cost-effectiveness of the encryption mechanism without negatively affecting performance

What should the developed to meet these requirements'?

Options

AChange the encryption type to customer-provided keys

BConfigure the S3 bucket to use an S3 Bucket Key for SSE-KMS

CUse S3 bucket policies to limit the principals who can create objects.

DUse a custom policy to limit the number of AWS KMS calls that are allowed

Question No: 13

MultipleChoice

A company hosts a monolithic application on Amazon EC2 instances. The company starts converting some features of the application to a serverless architecture by using Amazon API Gateway and AWS Lambda After the migration, some users report problems with payment processing

Upon inspection, a developer discovers that the Lambda function that calls the external payment API is taking longer than expected Therefore, the API Gateway requests are timing out

What should the developer do to resolve this issue in the serverless architecture1?

Options

AUse the EC2 instances to make the API calls to the payment API

BUse Amazon Simple Queue Service (Amazon SQS) with API Gateway and the Lambda function to asynchronously call the payment API

CIncrease the API Gateway timeout duration to match the payment API time

DIncrease the Lambda function's memory to increase the network bandwidth and increase the speed of the payment API calls

Question No: 14

MultipleChoice

A developer is designing a web application in which new users will use their email addresses to create accounts Millions of users are expected to sign up. The application will store attributes for each user

Which AWS service or feature should the developer implement to meet these requirements^

Options

AAmazon Cognito user pools

BAWS Mobile Hub User File Storage

CAWS AppSync

DAWS Mobile Hub Cloud Logic

Question No: 15

MultipleChoice

A developer is creating an application that is based on an AWS Lambda function. The function uses the AWS SDK to read product price data from an Amazon S3 bucket and to write user information to an Amazon Aurora DB instance The Lambda function runs often, up to a few times each minute To meet performance requirements, the developer must minimize the run duration of the Lambda function

Which actions can help the developer increase the performance'? (Select TWO)

Options

AInitialize SDK clients and database connections outside of the function handler

BRead the S3 product price data initially and cache it locally in the /imp directory

CUse environment variables to pass operational parameters to the function.

DUse most-restrictive permissions when setting the 1AM policies for the Lambda 1AM role

ESplit the code into different Lambda functions to keep the functions smaller

Question No: 16

MultipleChoice

You are writing to a DynamoDB table and receive the following exception:' ProvisionedThroughputExceededException'. though according to your Cloudwatch metrics for the table, you are not exceeding your provisioned throughput.

What could be an explanation for this?

Options

AYou haven't provisioned enough DynamoDB storage instances

BYou're exceeding your capacity on a particular Range Key

CYou're exceeding your capacity on a particular Hash Key

DYou're exceeding your capacity on a particular Sort Key

EYou haven't configured DynamoDB Auto Scaling triggers