- (Exam Topic 3)
A company hostss a three application on Amazon EC2 instances in a single Availability Zone. The web application uses a self-managed MySQL database that is hosted on an EC2 instances to store data in an Amazon Elastic Block Store (Amazon EBS) volumn. The MySQL database currently uses a 1 TB Provisioned IOPS SSD (io2) EBS volume. The company expects traffic of 1,000 IOPS for both reads and writes at peak traffic.
The company wants to minimize any distruptions, stabilize perperformace, and reduce costs while retaining the capacity for double the IOPS. The company wants to more the database tier to a fully managed solution that is highly available and fault tolerant.
Which solution will meet these requirements MOST cost-effectively?

1. A. Use a Multi-AZ deployment of an Amazon RDS for MySQL DB instance with an io2 Block Express EBS volume.
2. B. Use a Multi-AZ deployment of an Amazon RDS for MySQL DB instance with a General Purpose SSD (gp2) EBS volume.
3. C. Use Amazon S3 Intelligent-Tiering access tiers.
4. D. Use two large EC2 instances to host the database in active-passive mode.

Correct Answer: A

- (Exam Topic 3)
A data analytics company wants to migrate its batch processing system to AWS. The company receives thousands of small data files periodically during the day through FTP. A on-premises batch job processes the data files overnight. However, the batch job takes hours to finish running.
The company wants the AWS solution to process incoming data files are possible with minimal changes to the FTP clients that send the files. The solution must delete the incoming data files the files have been processed successfully. Processing for each file needs to take 3-8 minutes.
Which solution will meet these requirements in the MOST operationally efficient way?

1. A. Use an Amazon EC2 instance that runs an FTP server to store incoming files as objects in Amazon S3 Glacier Flexible Retrieva
2. B. Configure a job queue in AWS Batc
3. C. Use Amazon EventBridge rules to invoke the job to process the objects nightly from S3 Glacier Flexible Retrieva
4. D. Delete the objects after the job has processed the objects.
5. E. Use an Amazon EC2 instance that runs an FTP server to store incoming files on an Amazon Elastic Block Store (Amazon EBS) volum
6. F. Configure a job queue in AWS Batc
7. G. Use Amazon EventBridge rules to invoke the process the files nightly from the EBS volum
8. H. Delete the files after the job has processed the files.
9. I. Use AWS Transfer Family to create an FTP server to store incoming files on an Amazon Elastic Block Store (Amazon EBS) volum
10. J. Configure a job queue in AWS Batc
11. K. Use an Amazon S3 event notification when each files arrives to invoke the job in AWS Batc
12. L. Delete the files after the job has processed the files.
13. M. Use AWS Transfer Family to create an FTP server to store incoming files in Amazon S3 Standard.Create an AWS Lambda function to process the files and to delete the files after they are proessed.yse an S3 event notification to invoke the lambda function when the fils arrive

Correct Answer: C

- (Exam Topic 2)
A company uses AWS Organizations to create dedicated AWS accounts for each business unit to manage each business unit's account independently upon request. The root email recipient missed a notification that was sent to the root user email address of one account. The company wants to ensure that all future notifications are not missed. Future notifications must be limited to account administrators.
Which solution will meet these requirements?

1. A. Configure the company's email server to forward notification email messages that are sent to the AWS account root user email address to all users in the organization.
2. B. Configure all AWS account root user email addresses as distribution lists that go to a few administrators who can respond to alert
3. C. Configure AWS account alternate contacts in the AWS Organizations console or programmatically.
4. D. Configure all AWS account root user email messages to be sent to one administrator who is responsible for monitoring alerts and forwarding those alerts to the appropriate groups.
5. E. Configure all existing AWS accounts and all newly created accounts to use the same root user email addres
6. F. Configure AWS account alternate contacts in the AWS Organizations console orprogrammatically.

Correct Answer: D

- (Exam Topic 3)
A company hosts its application on AWS The company uses Amazon Cognito to manage users When users log in to the application the application fetches required data from Amazon DynamoDB by using a REST API that is hosted in Amazon API Gateway. The company wants an AWS managed solution that will control access to the REST API to reduce
development efforts
Which solution will meet these requirements with the LEAST operational overhead?

1. A. Configure an AWS Lambda function to be an authorize! in API Gateway to validate which user made the request
2. B. For each user, create and assign an API key that must be sent with each request Validate the key by using an AWS Lambda function
3. C. Send the user's email address in the header with every request Invoke an AWS Lambda function tovalidate that the user with that email address has proper access
4. D. Configure an Amazon Cognito user pool authorizer in API Gateway to allow Amazon Cognito to validate each request

Correct Answer: D

- (Exam Topic 1)
A company runs a highly available image-processing application on Amazon EC2 instances in a single VPC The EC2 instances run inside several subnets across multiple Availability Zones. The EC2 instances do not communicate with each other However, the EC2 instances download images from Amazon S3 and upload images to Amazon S3 through a single NAT gateway The company is concerned about data transfer charges
What is the MOST cost-effective way for the company to avoid Regional data transfer charges?

1. A. Launch the NAT gateway in each Availability Zone
2. B. Replace the NAT gateway with a NAT instance
3. C. Deploy a gateway VPC endpoint for Amazon S3
4. D. Provision an EC2 Dedicated Host to run the EC2 instances

Correct Answer: A