Question:

a) In relation to network design, give two reasons why the building-block approach is favoured to the traditional approach.

b) Explain the following steps in relation to building-block approach.

i) Geographic Scope
ii) Capacity Planning
iii) Network Requirement

c) How is a logical network diagram different from that of a physical network diagram?

d) Give four measures that could be taken to reduce overall network costs.

e) Differentiate between each of the following:

i) TCO and NCO
ii) Packet-Level and Application-Level firewalls
iii) RAID-10 and RAID-5