A company is providing weather data over a REST - based API to several customers. The API is hosted
by Amazon API Gateway and is integrated with different AWS Lambda functions for each API
operation. The company uses Amazon Route 53 for DNS and has created a resource record of
weather.example.com. The company stores data for the API in Amazon DynamoDB tables. The
company needs a solution that will give the API the ability to fail over to a different AWS Region.
Which solution will meet these requirements?
Question No 2
A company is running a two - tier web - based application in an on - premises data center. The
application layer consists of a single server running a stateful application. The application connects to
a PostgreSQL database running on a separate server. The application’s user base is expected to grow
significantly, so the company is migrating the application and database to AWS. The solution will use
Amazon Aurora PostgreSQL, Amazon EC2 Auto Scaling, and Elastic Load Balancing.
Which solution will provide a consistent user experience that will allow the application and database
tiers to scale?
Question No 3
A company uses a service to collect metadata from applications that the company hosts on premises.
Consumer devices such as TVs and internet radios access the applications. Many older devices do not
support certain HTTP headers and exhibit errors when these headers are present in responses. The
company has configured an on - premises load balancer to remove the unsupported headers from
responses sent to older devices, which the company identified by the User - Agent headers.
The company wants to migrate the service to AWS, adopt serverless technologies, and retain the
ability to support the older devices. The company has already migrated the applications into a set of
AWS Lambda functions.
Which solution will meet these requirements?
Question No 4
A company is running a traditional web application on Amazon EC2 instances. The company needs to
refactor the application as microservices that run on containers. Separate versions of the application
exist in two distinct environments: production and testing. Load for the application is variable, but
the minimum load and the maximum load are known. A solutions architect needs to design the
updated application with a serverless architecture that minimizes operational complexity.
Which solution will meet these requirements MOST cost - effectively?
Question No 5
A company has a multi - tier web application that runs on a fleet of Amazon EC2 instances behind an
Application Load Balancer (ALB). The instances are in an Auto Scaling group. The ALB and the Auto
Scaling group are replicated in a backup AWS Region. The minimum value and the maximum value
for the Auto Scaling group are set to zero. An Amazon RDS Multi - AZ DB instance stores the
application’s dat
a. The DB instance has a read replica in the backup Region. The application presents an endpoint to
end users by using an Amazon Route 53 record.
The company needs to reduce its RTO to less than 15 minutes by giving the application the ability to
automatically fail over to the backup Region. The company does not have a large enough budget for
an active - active strategy.
What should a solutions architect recommend to meet these requirements?