Amazon Web Services spoto sure Pass Exam Dva-c02 Pdf by Lula q7 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:	425 Q&A's	Shared By:	lula

Question 100

A company wants to migrate applications from its on-premises servers to AWS. As a first step, the company is modifying and migrating a non-critical application to a single Amazon EC2 instance. The application will store information in an Amazon S3 bucket. The company needs to follow security best practices when deploying the application on AWS.

Which approach should the company take to allow the application to interact with Amazon S3?

Options:

Create an 1AM role that has administrative access to AWS. Attach the role to the EC2 instance.

Create an 1AM user. Attach the AdministratorAccess policy. Copy the generated access key and secret key. Within the application code, use the access key and secret key along with the AWS SDK to communicate with Amazon S3.

Create an 1AM role that has the necessary access to Amazon S3. Attach the role to the EC2 instance.

Create an 1AM user. Attach a policy that provides the necessary access to Amazon S3. Copy the generated access key and secret key. Within the application code, use the access key and secret key along with the AWS SDK to communicate with Amazon S3.

Discussion

Question 101

A company has an application that stores data in Amazon RDS instances. The application periodically experiences surges of high traffic that cause performance problems.

During periods of peak traffic, a developer notices a reduction in query speed in all database queries.

The team's technical lead determines that a multi-threaded and scalable caching solution should be used to offload the heavy read traffic. The solution needs to improve performance.

Which solution will meet these requirements with the LEAST complexity?

Options:

Use Amazon ElastiCache for Memcached to offload read requests from the main database.

Replicate the data to Amazon DynamoDB. Set up a DynamoDB Accelerator (DAX) cluster.

Configure the Amazon RDS instances to use Multi-AZ deployment with one standby instance. Offload read requests from the main database to the standby instance.

Use Amazon ElastiCache for Redis to offload read requests from the main database.

Discussion

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Question 102

A developer works for a company that only has a single pre-production AWS account with an AWS CloudFormation AWS SAM stack. The developer made changes to an existing AWS Lambda function specified in the AWS SAM template and additional Amazon SNS topics.

The developer wants to do a one-time deployment of the changes to test if the changes are working. The developer does not want to impact the existing pre-production application that is currently being used by other team members as part of the release pipeline.

Which solution will meet these requirements?

Options:

Use the AWS SAM CLI to package and deploy the SAM application to the pre-production AWS account. Specify the debug parameter.

Use the AWS SAM CLI to package and create a change set against the pre-production AWS account. Execute the change set in a new AWS account designated for a development environment.

Use the AWS SAM CLI to package and deploy the SAM application to a new AWS account designated for a development environment.

Update the CloudFormation stack in the pre-production account. Add a separate stage that points to a new AWS account designated for a development environment.

Discussion

Question 103

A developer is trying get data from an Amazon DynamoDB table called demoman-table. The developer configured the AWS CLI to use a specific IAM use's credentials and ran the following command.

The command returned errors and no rows were returned.

What is the MOST likely cause of these issues?

Options:

The command is incorrect; it should be rewritten to use put-item with a string argument

The developer needs to log a ticket with AWS Support to enable access to the demoman-table

Amazon DynamoOB cannot be accessed from the AWS CLI and needs to called via the REST API

The IAM user needs an associated policy with read access to demoman-table