Your startup wants to implement an order fulfillment process for selling a personalized gadget
that needs an average of 3-4 days to produce with some orders taking up to 6 months.
You expect 10 orders per day on your first day, 1000 orders per day after 6 months and 10,000
orders after 12 months. Orders coming in are checked for consistency, then dispatched to your
manufacturing plant for production, quality control, packaging, shipment and payment processing.
If the product does not meet the quality standards at any stage of the process, employees may
force the process to repeat a step. Customers are notified via email about order status and any
critical issues with their orders such as payment failure.
Your base architecture includes AWS Elastic Beanstalk for your website with an RDS MySQL
instance for customer data and orders.
How can you implement the order fulfillment process while making sure that the emails are
delivered reliably?

You would like to create a mirror image of your production environment in another region for
disaster recovery purposes.
Which of the following AWS resources do not need to be recreated in the second region? Choose
2 answers

Your company currently has a 2-tier web application running in an on-premises data center.
You have experienced several infrastructure failures in the past few months resulting in significant
financial losses. Your CIO is strongly considering moving the application to AWS. While working
on achieving buy-In from the other company executives, he asks you to develop a disaster
recovery plan to help improve business continuity in the short term. He specifies a target
Recovery Time Objective (RTO) of 4 hours and a Recovery Point Objective (RPO) of 1 hour or
less. He also asks you to implement the solution within 2 weeks.
Your database is 200GB in size and you have a 20Mbps Internet connection.
How would you do this while minimizing costs?

An international company has deployed a multi-tier web application that relies on DynamoDB in a
single region. For regulatory reasons they need disaster recovery capability in a separate region
with a Recovery Time Objective of 2 hours and a Recovery Point Objective of 24 hours. They
should synchronize their data on a regular basis and be able to provision the web application
rapidly using CloudFormation.
The objective is to minimize changes to the existing web application, control the throughput of
DynamoDB used for the synchronization of data, and synchronize only the modified elements.
Which design would you choose to meet these requirements?

You have deployed a web application, targeting a global audience across multiple AWS Regions
under the domain name example.com.
You decide to use Route53 Latency-Based Routing to serve web requests to users from the
region closest to the user. To provide business continuity in the event of server downtime you
configure weighted record sets associated with two web servers in separate Availability Zones
per region. During a DR test you notice that when you disable all web servers in one of the
regions Route53 does not automatically direct all users to the other region.
What could be happening? Choose 2 answers