- (Exam Topic 1)
A company is hosting a single-page web application in the AWS Cloud. The company is using Amazon CloudFront to reach its goal audience. The CloudFront distribution has an Amazon S3 bucket that is configured as its origin. The static files for the web application are stored in this S3 bucket.
The company has used a simple routing policy to configure an Amazon Route 53 A record The record points to the CloudFront distribution The company wants to use a canary deployment release strategy for new versions of the application.
What should a solutions architect recommend to meet these requirements?

1. A. Create a second CloudFront distribution for the new version of the applicatio
2. B. Update the Route 53 record to use a weighted routing policy.
3. C. Create a Lambda@Edge functio
4. D. Configure the function to implement a weighting algorithm and rewrite the URL to direct users to a new version of the application.
5. E. Create a second S3 bucket and a second CloudFront origin for the new S3 bucket Create a CloudFrontorigin group that contains both origins Configure origin weighting for the origin group.
6. F. Create two Lambda@Edge function
7. G. Use each function to serve one of the application versions Set up a CloudFront weighted Lambda@Edge invocation policy

Correct Answer: A

- (Exam Topic 2)
A solutions architect has deployed a web application that serves users across two AWS Regions under a custom domain The application uses Amazon Route 53 latency-based routing The solutions architect has associated weighted record sets with a pair of web servers in separate Availability Zones for each Region
The solutions architect runs a disaster recovery scenario When all the web servers in one Region are stopped Route 53 does not automatically redirect users to the other Region
Which of the following are possible root causes of this issue? (Select TWO.)

1. A. The weight for the Region where the web servers were stopped is higher than the weight for the other Region
2. B. One of the web servers in the secondary Region did not pass its HTTP health check
3. C. Latency resource record sets cannot be used in combination with weighted resource record sets
4. D. The setting to evaluate target health is not turned on for the latency alias resource record set that is associated with the domain in the Region where the web servers were stopped
5. E. An HTTP health check has not been set up for one or more of the weighted resource record sets associated with the stopped web servers

Correct Answer: DE

- (Exam Topic 1)
An enterprise runs 103 line-of-business applications on virtual machines in an on-premises data center. Many of the applications are simple PHP. Java, or Ruby web applications, are no longer actively developed, and serve little traffic.
Which approach should be used to migrate these applications to AWS with the LOWEST infrastructure costs?

1. A. Deploy the applications lo single-instance AWS Elastic Beanstalk environments without a load balancer.
2. B. Use AWS SMS to create AMls for each virtual machine and run them in Amazon EC2.
3. C. Convert each application to a Docker image and deploy to a small Amazon ECS cluster behind an Application Load Balancer.
4. D. Use VM Import/Export to create AMls for each virtual machine and run them in single-instance AWS Elastic Beanstalk environments by configuring a custom image.

Correct Answer: C

- (Exam Topic 1)
A large company is running a popular web application. The application runs on several Amazon EC2 Linux Instances in an Auto Scaling group in a private subnet. An Application Load Balancer is targeting the Instances In the Auto Scaling group in the private subnet. AWS Systems Manager Session Manager Is configured, and AWS Systems Manager Agent is running on all the EC2 instances.
The company recently released a new version of the application Some EC2 instances are now being marked as unhealthy and are being terminated As a result, the application is running at reduced capacity A solutions architect tries to determine the root cause by analyzing Amazon CloudWatch logs that are collected from the application, but the logs are inconclusive
How should the solutions architect gain access to an EC2 instance to troubleshoot the issue1?

1. A. Suspend the Auto Scaling group's HealthCheck scaling proces
2. B. Use Session Manager to log in to an instance that is marked as unhealthy
3. C. Enable EC2 instance termination protection Use Session Manager to log In to an instance that is marked as unhealthy.
4. D. Set the termination policy to Oldestinstance on the Auto Scaling grou
5. E. Use Session Manager to log in to an instance that is marked as unhealthy
6. F. Suspend the Auto Scaling group's Terminate proces
7. G. Use Session Manager to log in to an instance that is marked as unhealthy

Correct Answer: D
https://docs.aws.amazon.com/autoscaling/ec2/userguide/as-suspend-resume-processes.html
it shows For Amazon EC2 Auto Scaling, there are two primary process types: Launch and Terminate. The Launch process adds a new Amazon EC2 instance to an Auto Scaling group, increasing its capacity. The Terminate process removes an Amazon EC2 instance from the group, decreasing its capacity. HealthCheck process for EC2 autoscaling is not a primary process! It is a process along with the following AddToLoadBalancer AlarmNotification AZRebalance HealthCheck InstanceRefresh ReplaceUnhealthy ScheduledActions From the requirements, Some EC2 instances are now being marked as unhealthy and are being terminated. Application is running at reduced capacity not because instances are marked unhealthy but because they are being terminated.
https://docs.aws.amazon.com/autoscaling/ec2/userguide/as-suspend-resume-processes.html#choosing-suspend-r

- (Exam Topic 1)
The company needs to determine which costs on the monthly AWS bill are attributable to each application or team. The company also must be able to create reports to compare costs from the last 12 months and to help forecast costs for the next 12 months. A solutions architect must recommend an AWS Billing and Cost Management solution that provides these cost reports.
Which combination of actions will meet these requirements? (Select THREE.)

1. A. Activate the user-defined cost allocation tags that represent the application and the team.
2. B. Activate the AWS generated cost allocation tags that represent the application and the team.
3. C. Create a cost category for each application in Billing and Cost Management.
4. D. Activate IAM access to Billing and Cost Management.
5. E. Create a cost budget.
6. F. Enable Cost Explorer.

Correct Answer: ACF
https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/manage-cost-categories.html https://aws.amazon.com/premiumsupport/knowledge-center/cost-explorer-analyze-spending-and-usage/ https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/manage-cost-categories.html
https://docs.aws.amazon.com/cost-management/latest/userguide/ce-enable.html