PART 1 - Network design mini case (60 points) BCF is a newly founded consulting firm housed in 2 adjacent buildings (Building A and Building B) in downtown Toronto. It

has 6 departments (D1 to D6), D1, D2 and D3 are located in building A whereas D4, D5 and D6 are located in Building B. Each department will connect 10 clients, 4 servers and 1 network printer. All clients (NICs included), servers (NICs included) and network printers have already been ordered and do not need to be considered in this exercise. Users will require an Internet connection and all computers on the network will use public IP addresses. 1) Clearly explain (i) what “structured design" means, (ii) its main benefit(s)ª and (iii) how it applies to BCF's network (6 lines MAX) 2) Clearly explain which application architecture(s) you would recommend for BCF's network applications and why (4 lines MAX) 3) Using a structured design approach, list (i) each type of hardware component needed, (ii) their specific purpose and (iii) the required quantities 4) Consider the content of Fig. 1-3 of p.7 of your text. Briefly discuss the relevance for BCF of each remaining5 network architecture component. Use the format below: • Component X (name it): Relevant / not relevant and justification (2 lines MAX per network architecture component) • Component Y...etc. 5) Consider the numbers in Fig. 7-6 of p.193 of your text. Clearly explain: a) What they refer to (2 lines MAX) b) How they affect or don't affect EACH of the 3 technical goals for BCF's network (2 lines MAX per technical goal) 6) Do you recommend a NAT for BCF's network? Justify your answer (3 lines MAX) 7) BCF managers need guidance on which Server Operating System (aka network operating system and hereafter SOS) to use. Briefly discuss 4 different criteria you can use to recommend a particular SOS (3 lines MAX for each criterion) 8) BCF managers want to use Windows Server 2022 as the SOS. Clearly explain WHICH edition of Window Server 2022 you recommend and WHY (3 lines MAX) 9) Log onto www.cdw.com and determine the cost for BCF's network. Assume for simplicity that: • All prices are in Canadian dollars; • Cat 6 and fiber optics have a fixed cost per circuit to buy and install, regardless of distance of $150 and $250 respectively. 4 Important hint: The benefit(s) is (are) NOT related to the 3 technical goals presented in class. 5 "Remaining" means not mentioned in Question 1 or 3 above. 10) Using the software of your choice, draw a professional diagram of BCF's network PART 2 - Subnetting (20 points) Company XYZ has been assigned a Class C address with a network number of 210.10.10.0. You are asked to come up with a plan for network expansion and your needs analysis shows that XYZ network requires 10 subnets. Answer the questions below and show your work. 1) How many bits must be borrowed for the subnet ID? 2) What is, in decimal format, the subnet mask required? 3) How many hosts can there be on each subnet? 4) How many subnets can this subnetting scheme accommodate? 5) Briefly discuss the expansion plan provided by this subnetting solution (3 lines MAX) PART 3 - Managed network mini case (20 points) ABC is a medium-sized company that offers a wide range of products to grocery stores. Its unmanaged network is experiencing important application slowness and instability that greatly affects the employees' ability to communicate and to perform even the most basic tasks. It also greatly affects the work of the network administrator as operating this network is extremely difficult. ABC hired an IT consultant who recommended using a managed network. Considering the definition of "managed network" in Ch.12 of your text, briefly: a) Explain what a managed network is (2 lines MAX) b) Discuss the components it requires (10 lines MAX) c) Explain how a managed network helps ABC (4 lines MAX) d) Explain how using a managed network may (or may not) affect each of the 3 key technical goals covered in class (6 lines MAX)