As a Network Security Architect at B2B solutions, as a leading a team of several Network

Administrators. ABC Corp is a medium sized organization and is currently expanding its operations. The

company head office is based in Islamabad with

SZABIST University has hired as a Network Security Architect to ensure the security of its 3 core

departments (Computer Sciences (CS), Management Sciences (MgtS), and Media Sciences (MedS)). Your

job is to ensure that the flow of data across networks (including wireless networks) must be confidential

and that web-based filtering is in place. Another requirement is to have role-based access control for

each department. The network should also span 3 buildings with a router in each building to join the

networks. A number of Web servers (such as zabdesk, CMS etc.) are also expected to operate on these

networks. It is assumed that each building will have its own single subnet. Company expects

approximately 200 workstations across all the sites with approximate numbers in each building as

follows:

CS - 100 workstations

MgtS - 50 workstations

MedS- 50 workstations

1.Draw a complete network design for above scenario.

2. Without security, what are the possible security threats to the network? Write down all

assumptions made during the design of the secure network.

3. Project software requirements and hardware requirements such as name of the security

network devices, with manufacturer's name, series, model, type of cables etc.

(The report should be targeted towards audience i.e. the board of directors who may not be

technologically savvy. Therefore, the report should be easy to read and contain step by step overview of

the design that includes calculations and assumptions. Additionally, the report contents should be

logically, systematically and succinctly structured to create a cohesive and coherent analytical piece of

work, using formal academic language and should adhere to grammatical conventions with not more