UNIVERSITY EXAMINATIONS: 2015/2016
EXAMINATION FOR THE DIPLOMA IN INFORMATION
TECHNOLOGY
DIT306 STRUCTURED CABLING
DATE: AUGUST 2016 TIME: 1½HOURS
INSTRUCTIONS: Answer Any THREE Questions.
QUESTION ONE
a) Standards establish technical criteria and ensure uniform performance among network
systems and components. They enable you to build modular networks that can easily
accommodate new technologies, equipment, and users as opposed to traditional cabling
which lacked flexibility. Explain some of the disadvantages of traditional cabling
(5 Marks)
b) Explain the following terms (8 Marks)
i. Backbone Cabling
ii. Horizontal Cabling
iii. Work-area Cabling
iv. Telecommunication Rooms / Closets
c) What functions do the following cable testing tools perform? (4 Marks)
i. Multimeter
ii. Induction amplifier/tone generator
iii. Certification field testers.
d) Briefly explain the following unwanted transfer of signals (3 Marks)
i. NEXT ( Near End Cross Talk)
ii. Alien crosstalk (AXT)
iii. Far end crosstalk (FEXT)
QUESTION TWO
a) Define structured cabling and give five advantages that come with it (7 Marks)
b) Give five desirable features of a server computer (5Marks)
c) You are the network administrator of your firm, there is need to expand the network to
accommodate more users. Give reasons as to why you would choose a router over a Hub
as a networking device (5 Marks)
d) Glory is the IT maintenance Manager in XYZ Company. She wants to place an order for a
switch. What are some of the factors that she should consider (3 Marks)
QUESTION THREE
a) Wireless fidelity or simply Wi-Fi works with no physical wired connection between sender
and receiver by using radio frequency (RF) technology. These type of networks have
become popular because of the advantages that come with them explain any five
(5 Marks)
b) Explain five applications of structured cabling (5 Marks)
c) Explain the term POE and give five advantages it brings to an installation (7 Marks)
d) List down three POE applications (3 Marks)
QUESTION FOUR
a) Unwanted voltage that is sent to electrical equipment is called a power disturbance. Typical
power disturbances include voltage surges, sags, spikes, and oscillations. Define each of
the power problems (4 Marks)
b) To ensure that any cabling project is done thoroughly, accurately, and on time, a flow chart
is created. The flowchart should include each of the tasks that must be completed and the
order in which they should be tackled as well as a timeline for each of these tasks. Name
the tasks that a flow chart should include. (5 Marks)
c) Give the basic steps one should follow to connect cable to jacks (7 Marks)
d) Define the following terms (4 Marks)
Cross talk
EMI
MDF
Attenuation
QUESTION FIVE
a) Explain the personal safety precautions that should be taken before Installing Cable
(7 Marks)
b) Outline the steps you would take to test cables after installation
(8 Marks)
c) Many outside factors can contribute to interference on the networking media. Give five
examples of sources that can produce outside signals that can impose themselves on wire
pairs in UTP cable (5 Marks)
