UNIVERSITY EXAMINATIONS: 2016/2017
EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE
IN INFORMATION TECHNOLOGY
BCT 1204: MULTIMEDIA TECHNOLOGY
BIT 3204A: DISTRIBUTED MULTIMEDIA SYSTEMS
BBIT: MULTIMEDIA SYSTEMS APPLICATIONS
FULL TIME/PART TIME/DISTANCE LEARNING
DATE: AUGUST, 2017 TIME: 2 HOURS
INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions.
QUESTION ONE [30 MARKS]
a) A video file has the following specifications
Resolution 1920×930
Colour depth 16bits
Framerate 30fps
Duration 2 hours
Calculate the bandwidth required to download the file in exactly 4 minutes for 10
users concurrently (6 Marks)
b) Define the term Multimedia (2 Marks)
c) State the FIVE quality of service parameters in multimedia systems (5 Marks)
d) Explain the Open system Interconnection model (8 Marks)
e) Distinguish between intra object synchronization and inter object synchronization
(4 Marks)
f) Using Lempel ZIv algorithm, encode the following text
FAABBCFAXEBBDDFA (5 Marks)
QUESTION TWO [20 MARKS]
a) Describe videoconferencing systems, giving standards, supporting technologies and
protocols that facilitate the application. (13 Marks)
b) Explain the SEVEN Factors Contributing towards the development of Multimedia
Technology (7 Marks)
QUESTION THREE [20 MARKS]
a) What is meant by the Quality of Service of a multimedia application? [2 Marks]
b) What major factors affect the Quality of Service of a multimedia application?
[8 Marks]
c) Give a definition of Virtual Reality. [2 Marks]
d) What specialized input and output devices have been developed for Virtual Reality?
Describe each device briefly. [8 Marks]
QUESTION FOUR [20 MARKS]
a) Distinguish between HDTV and SDTV (4 Marks)
b) What is a codec? (2 Marks)
c) What are the issues in designing a (multimedia) information system architecture?
Discuss the tradeos involved. (6 Marks)
d) What are the issues in networked multimedia? (5 Marks)
e) Explain the concept of Huffman coding with a suitable example. Also explain how does it
achieve compression? (4 Marks)
QUESTION FIVE [20 MARKS]
a) Distinguish between
i) hypertext and hypermedia (4 Marks)
ii) interactive and realtime multimedia (4 Marks)
b) List the THREE steps in digitizing audio (3 Marks)
c) Describe the roles of the following organisations
i) ITU-T
ii) ISO (6 Marks)
d) i) Why are standards important in open systems? (1 Marks)
iii) Name TWO such standards in multimedia systems. (2 Marks)
