UNIVERSITY EXAMINATIONS: 2017/2018
EXAMINATION FOR THE DIPLOMA IN INFORMATION TECHNOLOGY
DIT407 NETWORK DESIGN AND SETUP
FULLTIME/PARTTIME
DATE: APRIL, 2018
TIME: 1 ½ HOURS
INSTRUCTIONS: Answer any THREE questions.
QUESTION ONE
a) Discuss FOUR functions of an Operating System
(8 Marks)
b) With the aid of a diagram, explain the DHCP sequence
(4 Marks)
c) Discuss two methods of multiplexing multiple signals into a single carrier.
(4 Marks)
d) Define the following terms
(4 Marks)
(i)
(ii)
(iii)
(iv)
Topology
Internetworking
Monitoring
Throughput
QUESTION TWO
a) Explain the following Ethernet Terminologies:
i. Medium
ii. Segment
iii. Frame
iv. Node
(4 Marks)
b) Discuss FIVE goals of networking.
(5 Marks)
c) Highlight four benefits of computer networks to an organization
(4 Marks)
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d) Discuss FOUR criteria of categorizing types of networks
(4 Marks)
e) Highlight THREE differences between TCP/IP and OSI Models
(3 Marks)
QUESTION THREE
a) With the aid of a diagram, discuss the layout of an Ethernet Frame.
(8 Marks)
b) An IP Address consists of TWO parts. Explain.
(3 Marks)
c) Highlight FOUR factors to consider when buying a Network Switch.
(4 Marks)
c) Discuss THREE responsibilities of the OSI Session Layer. .
(3 Marks)
d) Define the term “collision” in networking.
(2 Marks)
QUESTION FOUR
a) Discuss the THREE common connectivity problems in LANs.
(6 Marks)
b) Explain FOUR reasons why one should make the effort to create and maintain Network
Documentation.
(4 Marks)
c) Discuss THREE methods that packet-based switches use for routing traffic. .
d) Briefly describe the responsibilities of a Network Administrator.
(6 Marks)
(4 Marks)
QUESTION FIVE
a) Describe the following Networking Terminologies
i. Multicst
ii. Unicast
iii. Backbone
(3 Marks)
b) Discuss THREE categories of Medium Access Control Protocols
(6 Marks)
c) You have been provided the following Class C network address 192.168.200.0/27.
i) How many subnets are available?
ii) How many hosts are there per subnet?
iii) What are the valid subnets?
(6 Marks)
d) With the aid of a Diagram, explain how a network switch works.
(5 Marks)
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