A company is using Amazon Route 53 latency-based routing to route requests to its UDP-based application for users around the world. The application is hosted on redundant servers in the company's on-premises data centers in the United States, Asia, and Europe. The company's compliance requirements state that the application must be hosted on premises. The company wants to improve the performance and availability of the application.
What should a solutions architect do to meet these requirements?

• A.Configure three Network Load Balancers (NLOs) in the three AWS Regions to address the on- prernises endpoints.
  In Route 53, create latency-based record that points to the three NLBs, and use it as an origin for an Amazon CloudFront distribution.
  Provide access to the application by using a CNAML that points to the CloudFront DNS.
• B.Configure three Application Load Balancers (ALBs) in the three AWS Regions to address the on premises endpoint.
  In Route 53, create a latency based record that points to the three ALUs and use it as an origin for an Amazon CloudFront distribution.
  Provide access to the application by using a CNAMF that points to the CloudFront DNS.
• C.Configure throe Network Load Balancers (NLBs) in the three AWS Regions to address the on- premises endpoints.
  Create an accelerator by using AWS Global Accelerator, and register the NLBs as its endpoints.
  Provide access to the application by using a CNAML that points to the accelerator DNS.
• D.Configure three Application Load Balancers (ALGs) in the three AWS Regions to wireless the on- premises endpoints.
  Create an accelerator by using AWS Global Accelerator, and register the ALBs as its endpoints.
  Provide access to the application by using a CNAK1L that points to the accelerator UNS

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A company is deploying a new application lo Amazon Elastic Kubernetes Service (Amazon EKS) with an AWS Fargate duster The application needs a storage solution for data persistence The solution must be highly available and fault tolerant The solution also must be shared between multiple application containers
Which solution will meet these requirements with the LEAST operational overhead?

• A.Create an Amazon Elastic File System (Amazon EFS) tile system Register the tile system in a StorageClass object on an EKS cluster Use the same file system for all containers
• B.Create Amazon Elastic Block Store (Amazon EBS) volumes In the same Availability Zones where EKS worker nodes are placed. Register the volumes In a StorageClass object on an EKS cluster Use EBS Multi-Attach to share the data between containers
• C.Create Amazon Elastic File System (Amazon EFS) file systems In the same Availability Zones where EKS worker nodes are placed Register the file systems in a StorageClass obied on an EKS duster Create an AWS Lambda function to synchronize the data between file systems
• D.Create an Amazon Elastic Block Store (Amazon EBS) volume Register the volume In a StorageClass object on an EKS cluster Use the same volume for all containers.

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A solutions architect is designing a solution where users will De directed to a backup static error page it the primary website is unavailable.
The primary website's DNS records are hosted in Amazon Route 53 where their domain is pointing to an Application Load Balancer (ALB).
Which configuration should the solutions architect use to meet the company's needs while minimizing changes and infrastructure overhead?

• A.Point a Route 53 alias record to an Amazon CloudFront distribution with the ALB as one of its origins.
  Then, create custom error pages for the distribution.
• B.Set up a Route 53 active-passive failover configuration.
  Direct traffic to a static error page hosted within an Amazon S3 bucket when Route 53 health checks determine that the ALB endpoint is unhealthy.
• C.Update the Route 53 record to use a latency-based routing policy.
  Add the backup static error page hosted within an Amazon S3 bucket to the record so the traffic is sent to the most responsive endpoints.
• D.Set up a Route 53 active-active configuration with the ALB and an Amazon EC2 instance hosting a static error page as endpoints.
  Route 53 will only send requests to the instance if the health checks fail for the ALB.

Correct Answer: B

Using Amazon CloudFront as the front-end provides the option to specify a custom message instead of the default message. To specify the specific file that you want to return and the errors for which the file should be returned, you update your CloudFront distribution to specify those values.
For example, the following is a customized error message:

The CloudFront distribution can use the ALB as the origin, which will cause the website content to be cached on the CloudFront edge caches.
This solution represents the most operationally efficient choice as no action is required in the event of an issue, other than troubleshooting the root cause.
References:
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/custom-error- pages.html

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A financial services company has a web application that serves users in the United States and Europe The application consists of a database tier and a web server tier The database tier consists of a MySQL database hosted in us-east-1 Amazon Route 53 geoproximity routing is used to direct traffic to instances in the closest Region A performance review of the system reveals that European users are not receiving the same level of query performance as those in the United States
Which changes should be made to the database tier to improve performance?

• A.Migrate the database to Amazon RDS for MySQL Configure Multi-AZ in one of the European Regions
• B.Deploy MySQL instances in each Region Deploy an Application Load Balancer in front of MySQL to reduce the load on the primary instance
• C.Migrate the database to Amazon DynamoDB Use DynamoDB global tables to enable replication to additional Regions
• D.Migrate the database to an Amazon Aurora global database in MySQL compatibility mode Configure read replicas in one of the European Regions

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A company must migrate 20 TB of data from a data center to the AWS Cloud within 30 days.
The company's network bandwidth is limited to 15 Mbps and cannot exceed 70% utilization.
What should a solutions architect do to meet these requirements?

• A.Use a secure VPN connection.
• B.Use Amazon S3 Transfer Acceleration.
• C.Use AWS Snowball.
• D.Use AWS DataSync.

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