Network systems design and management

  

You work for a company that has branches in different cities and you have been tasked to design the network for your organization. Your initial plan is to show a layer three topology diagram and then cascade down to more details.

Task:

a) Your first diagram is as shown below:

Refer to IMG 1

Assuming R1 is for the central site and R2 is for a branch office, draw a detailed diagram that shows more detail about the physical cabling with less detail about the IP subnets and addresses connecting the central office with the branch office. Show all the labels and details appropriately.

6 Marks

b) Armed with the cabling details (a) above, describe in detail how you can physically install a router ( Assumption: because your devices will be in the same place, you can create Ethernet WAN links by using the RJ-45 ports and a UTP cable without the need to purchase an SFP for each router).  6 Marks

c) You have just configured your router and the following are the details: 

Refer to IMG 2

Using the parameters above, match the networking parameters from the left onto the correct values on the right: 4 Marks

Refer to IMG 3

d) Using your understanding of AAA functions, choose the appropriate functions on the left that fall under each heading on the right. 4 Marks

Refer to IMG 4

e) In the following exhibit, what needs to be changed for Computer A to successfully

communicate with Computer B (assume the least amount of effort to fix the problem)?   2 Marks

Refer to IMG 5

f) You are installing IP phones in a new office. The phones and office computers

connect to the same device. To ensure maximum throughout for the phone data sessions,  the company needs to make sure that the phone traffic is on a different network from that  of the office computer data traffic. What is the best network device to which to directly  connect the phones and computers and what technology should be implemented on this  device?  3 Marks

QUESTION TWO [25 MARKS]

a) Explain any five ways that network managers can enhance availability and reliability of their networks. 5 Marks

c) Explain how the following diagrams help in troubleshooting a network. 

(i) Physical Network Diagram 2 Marks

(ii) Logical Network Diagram 2 Marks

d) Study the diagram below very carefully. Using the IP address 192.168.15.0, and by using VLSM, create the subnets and show where they fit on the interfaces. 16 Marks

Refer to IMG 6

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