UNIVERSITY EXAMINATIONS: 2020/2021
EXAMINATION FOR THE DEGREES OF BACHELOR OF BUSINESS AND
INFORMATION TECHNOLOGY
BIT 2311/BAC 2320/BISF 1307: NETWORK SYSTEMS DESIGN AND
ADMINISTRATION
FULLTIME/ PART TIME/DISTANCE LEARNING
DATE: DECEMBER, 2021 TIME: 2 HOURS
INSTRUCTIONS: QUESTION ONE IS COMPULSORY, CHOOSE TWO OTHER
QUESTIONS
QUESTION ONE (20 Marks) Compulsory
a) Define the following networking terminologies:
i) Bandwidth [2 Marks]
ii) Throughput [2
Marks]
iii) Latency [2
Marks]
b) Define socket pairs and their role in network communication. [4 Marks]
c) Explain how the following port of a communication device is used:
i. Console port [2
Marks]
d) Highlight the factors to consider when designing a network.
[4Marks]
e) Outline the three levels of an enterprise network. [4Marks]
QUESTION TWO (15 Marks)
a) Explain the four step process a DHCP Server uses to assign IP Addresses while avoiding IP
conflicts. [5 Marks]
b) Outline and explain each of the layers in the TCP/IP model [10 Marks]
QUESTION THREE (15 Marks)
a) Explain TWO ways to prevent Denial of Service Attacks. [4 Marks]
b) Give THREE reasons why you would choose a Linux platform for Network Administration
over a Microsoft Windows Server platform. [6 Marks]
c) Define social engineering and give social engineering examples a threat actor could use to
infiltrate a network. [5 Marks]
QUESTION FOUR (15 Marks)
a) Highlight the main tasks associated with network administration. [5Marks]
b) Subnet the IP address 192.168.10.0/24 to come up with an address scheme that can support at
least 60 users. (Show your working process) [10Marks]
i. Determine the new subnet mask that will apply for the networks.
ii. Identify how many subnets will be available.
iii. Identify how many useable IPs will be in each subnet.
