Just about every company today has begun the practice of allowing corporateinformation to be accessed via the ernet. While this is considered a step in theright direction for some business needs, it also creates security vulnerabilities.Which of the following solutions would be the best choice when setting up e-commercewithin an organization?

A.
Implementing a DMZ with dual homed firewalls and two proxy servers

B.
Implementing a three-tiered application architecture

C.
Using an isolated Web server to store data

D.
Implementing strict security policies on the devices holding the data

Explanation:
A three-tiered architecture consisting of presentation layer, business logic layer, and data layer should be used in this type of situation. This framework splits up the functionality processes that are necessary in e-commerce, but also allows for increasing degrees of security to be implemented. Each layer(presentation, business logic, data layer) runs on separate systems and the traffic between each system should go through separate firewalls.