- (Exam Topic 1)
A solutions architect needs to advise a company on how to migrate its on-premises data processing application to the AWS Cloud. Currently, users upload input files through a web portal. The web server then stores the uploaded files on NAS and messages the processing server over a message queue. Each media file can take up to 1 hour to process. The company has determined that the number of media files awaiting processing is significantly higher during business hours, with the number of files rapidly declining after business hours.
What is the MOST cost-effective migration recommendation?

1. A. Create a queue using Amazon SQ
2. B. Configure the existing web server to publish to the new queue.When there are messages in the queue, invoke an AWS Lambda function to pull requests from the queue and process the file
3. C. Store the processed files in an Amazon S3 bucket.
4. D. Create a queue using Amazon M
5. E. Configure the existing web server to publish to the new queue.When there are messages in the queue, create a new Amazon EC2 instance to pull requests from the queue and process the file
6. F. Store the processed files in Amazon EF
7. G. Shut down the EC2 instance after the task is complete.
8. H. Create a queue using Amazon M
9. I. Configure the existing web server to publish to the new queue.When there are messages in the queue, invoke an AWS Lambda function to pull requests from the queue and process the file
10. J. Store the processed files in Amazon EFS.
11. K. Create a queue using Amazon SO
12. L. Configure the existing web server to publish to the new queu
13. M. Use Amazon EC2 instances in an EC2 Auto Scaling group to pull requests from the queue and process the file
14. N. Scale the EC2 instances based on the SOS queue lengt
15. O. Store the processed files in an Amazon S3 bucket.

Correct Answer: D
https://aws.amazon.com/blogs/compute/operating-lambda-performance-optimization-part-1/

- (Exam Topic 2)
A fleet of Amazon ECS instances is used to poll an Amazon SQS queue and update items in an Amazon DynamoDB database Items in the table are not being updated, and the SQS queue Is filling up Amazon CloudWatch Logs are showing consistent 400 errors when attempting to update the table The provisioned write capacity units are appropriately configured, and no throttling is occurring
What is the LIKELY cause of the failure*?

1. A. The ECS service was deleted
2. B. The ECS configuration does not contain an Auto Scaling group
3. C. The ECS instance task execution IAM role was modified
4. D. The ECS task role was modified

Correct Answer: D

- (Exam Topic 1)
A company is deploying a new cluster for big data analytics on AWS. The cluster will run across many Linux Amazon EC2 instances that are spread across multiple Availability Zones.
All of the nodes in the cluster must have read and write access to common underlying file storage. The file storage must be highly available, must be resilient, must be compatible with the Portable Operating System Interface (POSIX), and must accommodate high levels of throughput.
Which storage solution will meet these requirements?

1. A. Provision an AWS Storage Gateway file gateway NFS file share that is attached to an Amazon S3 bucke
2. B. Mount the NFS file share on each EC2 instance In the cluster.
3. C. Provision a new Amazon Elastic File System (Amazon EFS) file system that uses General Purpose performance mod
4. D. Mount the EFS file system on each EC2 instance in the cluster.
5. E. Provision a new Amazon Elastic Block Store (Amazon EBS) volume that uses the lo2 volume type.Attach the EBS volume to all of the EC2 instances in the cluster.
6. F. Provision a new Amazon Elastic File System (Amazon EFS) file system that uses Max I/O performance mod
7. G. Mount the EFS file system on each EC2 instance in the cluster.

Correct Answer: D

- (Exam Topic 1)
A company wants to deploy an AWS WAF solution to manage AWS WAF rules across multiple AWS accounts. The accounts are managed under different OUs in AWS Organizations.
Administrators must be able to add or remove accounts or OUs from managed AWS WAF rule sets as needed. Administrators also must have the ability to automatically update and remediate noncompliant AWS WAF rules in all accounts
Which solution meets these requirements with the LEAST amount of operational overhead?

1. A. Use AWS Firewall Manager to manage AWS WAF rules across accounts in the organizatio
2. B. Use an AWS Systems Manager Parameter Store parameter to store accountnumbers and OUs to manage Update the parameter as needed to add or remove accounts or OUs Use an Amazon EventBridge (Amazon CloudWatch Events) rule to identify any changes to the parameter and to invoke an AWS Lambda function to update the security policy in the Firewall Manager administrative account
3. C. Deploy an organization-wide AWS Conng rule that requires all resources in the selected OUs to associate the AWS WAF rule
4. D. Deploy automated remediation actions by using AWS Lambda to fix noncompliant resource
5. E. Deploy AWS WAF rules by using an AWS CloudFormation stack set to target the same OUs where the AWS Config rule is applied.
6. F. Create AWS WAF rules in the management account of the organizatio
7. G. Use AWS Lambda environment variables to store account numbers and OUs to manage Update environment variables as needed to add or remove accounts or OUs Create cross-account IAM roles in member account
8. H. Assume the roles by using AWS Security Token Service (AWS STS) in the Lambda function to create and update AWS WAF rules in the member accounts
9. I. Use AWS Control Tower to manage AWS WAF rules across accounts in the organizatio
10. J. Use AWS Key Management Service (AWS KMS) to store account numbers and OUs to manage Update AWS KMS as needed to add or remove accounts or OU
11. K. Create IAM users in member accounts Allow AWS Control Tower in the management account to use the access key and secret access key to create and update AWS WAF rules in the member accounts

Correct Answer: B

- (Exam Topic 2)
A company wants to improve cost awareness for its Amazon EMR platform The company has aWocated budgets for each team's Amazon EMR usage When a budgetary threshold is reached a notification should be sent by email to the budget office's distribution list Teams should be able lo view their EMR cluster expenses to date A solutions architect needs to create a solution that ensures this policy is proactively and centrally enforced in a multi-account environment
Which combination of steps should the solutions architect take to meet these requirements? (Select TWO.)

1. A. Update the AWS CloudFormation template to include the AWS Budgets Budget resource with the NotificationsWithSubscnbers property
2. B. Implement Amazon CloudWatch dashboards for Amazon EMR usage
3. C. Create an EMR bootstrap action that runs at startup that calls the Cost Explorer API to set the budget onthe cluster with the GetCostForecast and NotificationsWithSubscnbers actions
4. D. Create an AWS Service Catalog portfolio for each tea
5. E. Add each team's Amazon EMR cluster as an AWS CloudFormation template to their Service Catalog portfolio as a Product
6. F. Create an Amazon CloudWatch metric for billing Create a custom alert when costs exceed the budgetary threshold.

Correct Answer: BE