You are trying to build a highly available e$-$commerce site for a small business on

AWS. You will have webservers and a back$-$end database for storing customer order

details.

a$)$ Draw a design for your architecture which must show:

$$ The $$highly available$$ VPC network architecture $($including subnets, route

tables and gateways$)$ to allow public access to webservers, to allow

databases and servers in the private part of the network to access patches

and to enable secure access for employees of the business to the

databases;

$$ the location within your network architecture of your webserver instances

and databases;

$$ the necessary security groups for webservers and databases and their

settings. $(6)$

b$)$ After your design is successful and the website is up and running, there are

sometimes problems with the webservers not being able to cope with the volume of

requests and crashing. Suggest what modifications you could make to the site to

improve its response to these occasional increases in demand. You may use more

diagrams in your answer.