UNIVERSITY EXAMINATIONS: 2016/2017
EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE
INFORMATION COMMUNICATION TECHNOLOGY
BCT 2305 NETWORK SUPPORTED MULTIMEDIA TECHNOLOGIES
FULL TIME/PART TIME
DATE: AUGUST, 2017 TIME: 2 HOURS
INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions.
QUESTION ONE
a) State the Nyquist sampling theorem (2 Marks)
b) Distinguish between lossy and lossless methods in data compression giving TWO
examples of each (6 Marks)
c) Explain the meaning of network multimedia operating system (2 Marks)
d) Define Quality of service as used in networked multimedia (3 Marks)
e) Identify THREE classes of multimedia networking applications and give TWO examples
of each (9 Marks)
f) What is jittering in networks (2 Marks)
g) How should the Internet evolve to better support multimedia? (6 Marks)
QUESTION TWO
a) Describe Real time Control Protocol (RTCP) (5 Marks)
b) A network has the following specifications
Resolution 2580×1940
Colour depth of 24bits
Duration 2 hours
Frame rate of 30fps
800 users
Required:
Calculate the required bandwidth to stream a video showing your working clear and state
any assumptions (15 Marks)
QUESTION THREE
a) Describe the OSI model using a suitable diagram (9 Marks)
b) Explain the THREE steps in digitizing audio (6 Marks)
c) Describe Real time reservation Protocol (RSVP) (5 Marks)
QUESTION FOUR
a) Distinguish the streaming of multimedia over UDP and TCP (8 Marks)
b) Explain the following losses
i) Network loss
ii) Delay loss (4 Marks)
c) What is a content distribution network and give two examples (6 Marks)
d) Give the ranges of IP addresses for multicasting (2 Marks)
QUESTION FIVE
a) State FOUR scheduling policies in network supported multimedia (8 Marks)
b) List TWO policing mechanisms (2 Marks)
c) Describe
i) Real time Protocol(RTP) (5 Marks)
ii) Session Initiation Protocol(SIP) (5 Marks)
