A Solutions Architect needs to migrate a legacy application from on premises to AWS. On premises, the application runs on two Linux servers behind a load balancer and accesses a database that is master-master on two servers. Each application server requires a license file that is tied to the MAC address of the server's network adapter. It takes the software vendor 12 hours to send ne license files through email. The application requires configuration files to use static. IPv4 addresses to access the database servers, not DNS.
Given these requirements, which steps should be taken together to enable a scalable architecture for the application servers? (Choose two.)

• A.Create bootstrap automation to attach an ENI from the pool, read the database IP addresses from AWS Systems Manager Parameter Store, and inject those parameters into the local configuration files. Keep SSM up to date using a Lambda function.
• B.Install the application on an EC2 instance, configure the application, and configure the IP address information. Create an AMI from this instance and use if for all instances.
• C.Create a pool of ENIs, request license files from the vendor for the pool, and store the license files within Amazon S3. Create automation to download an unused license, and attach the corresponding ENI at boot time.
• D.Create a pool of ENIs, request license files from the vendor for the pool, store the license files on an Amazon EC2 instance, modify the configuration files, and create an AMI from the instance. use this AMI for all instances.
• E.Create a bootstrap automation to request a new license file from the vendor with a unique return email.
  Have the server configure itself with the received license file.

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A company runs a multi-tier web application that hosts news content. The application runs on Amazon EC2 instances behind an Application Load Balancer. The instances run in an EC2 Auto Scaling group across multiple Availability Zones and use an Amazon Aurora database. A solutions architect needs to make the application more resilient to periodic increases in request rates.
Which architecture should the solutions architect implement? (Select TWO )

• A.Add AWS Shield.
• B.Add Aurora Replicas
• C.Add AWS Direct Connect
• D.Add AWS Global Accelerator.
• E.Add an Amazon CloudFront distribution in front of the Application Load Balancer

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A user has launched two EBS backed EC2 instances in the US-East-1a region. The user wants to change the zone of one of the instances. How can the user change it?

• A.It is not possible to change the zone of an instance after it is launched
• B.From the AWS EC2 console, select the Actions - > Change zones and specify the new zone
• C.The zone can only be modified using the AWS CLI
• D.Stop one of the instances and change the availability zone

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A company has a three-tier image-sharing application. It uses an Amazon EC2 instance for the front-end layer, another for the backend tier, and a third for the MySQL database. A solutions architect has been tasked with designing a solution that is highly available, and requires the least amount of changes to the application Which solution meets these requirements?

• A.Use Amazon S3 to host the front-end layer and a fleet of Amazon EC2 instances in an Auto Scaling group for the backend layer. Move the database to a memory optimized instance type to store and serve users' images.
• B.Use Amazon S3 to host the front-end layer and AWS Lambda functions for the backend layer. Move the database to an Amazon DynamoDB table and use Amazon S3 to store and serve users' images.
• C.Use load-balanced Multi-AZ AWS Elastic Beanstalk environments for the front-end and backend layers.
  Move the database to an Amazon RDS instance with multiple read replicas to store and serve users' images.
• D.Use load-balanced Multi-AZ AWS Elastic Beanstalk environments for the front-end and backend layers.
  Move the database to an Amazon RDS instance with a Multi-AZ deployment. Use Amazon S3 to store and serve users' images.

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You have been asked to design a fault-tolerant and scalable web application across three Availability Zones.
The presentation logic will reside on web server's behinds an ELB Classic Load Balance, and the application logic will reside on a set of app servers behind a second load balancer.
How should you use Auto Scaling groups?

• A.Deploy six Auto Scaling groups: a web server group in each Availability Zone and an app server group in each Availability Zone
• B.Deploy two Auto Scaling groups: one for the web servers in all Availability Zones and one for the app servers in all Availability Zones
• C.Deploy three Auto Scaling groups: one for each Availability Zone that includes both web and app servers
• D.Deploy one Auto Scaling group that includes all the web and app servers across all Availability Zones

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