UNIVERSITY EXAMINATIONS: 2017/2018
EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN
INFORMATION TECHNOLOGY
BCT1204 MULTIMEDIA TECHNOLOGY
BIT 3204A: DISTRIBUTED MULTIMEDIA SYSTEMS
BBIT:MULTIMEDIA SYSTEMS APPLICATIONS
FULL TIME/PART TIME/DISTANCE LEARNING
DATE: APRIL, 2018 TIME: 2 HOURS
INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions.
QUESTION ONE
a) Define a distributed multimedia operating systems (3 Marks)
b) A video file of a size 19770.56 GB , colour depth of 20 bits, duration of 3 hours, and
frame rate of 30fps, takes 5 hours to download using a bandwidth of 1.1GBps.
Calculate
i) the pixel count of the camera in megapixels (8 Marks)
ii) the resolution, if the aspect ratio is 16:9 (2 Marks)
iii) the bandwidth requirements, if 20 users are to download the same video for 5hrs
concurrently (2 Marks)
iv) cost of the bandwidth in a) if the cost of 128KBps is Kshs 60,000 (4 Marks)
v) Recommend a suitable method to enable your target audience to view the video
(4 Marks)
a) Using Lempel ziv coding technique encode: ABBBCCCDAADAEAABA (7 Marks)
QUESTION TWO
a) Describe multimedia synchronization (2 Marks)
b) Identify the layers in the reference model for synchronization (8 Marks)
c) State the mandate of International telecommunications union (4 Marks)
d) What do the ITU series (H, G and T series ) address (6 Marks)
QUESTION THREE
a) Define the term animation (2 Marks)
b) List the three methods by which content can be delivered from the server to the client in a
network (6 Marks)
c) Distinguish between progressive download and real time streaming (4 Marks)
d) Describe the FOUR real time streaming protocol states (4 Marks)
e) Name the FOUR parameters that determine interactivity in designing multimedia
applications (4 Marks)
QUESTION FOUR
a) Why is buffering an essential technique in multimedia systems (2 Marks)
b) List the EIGHT Schneiderman golden rules in dialog design (8 Marks)
c) State the THREE multipoint conferencing modes (6 Marks)
d) Describe the functions of the following multimedia network protocols
i) SDP
ii) RTP (4 Marks)
QUESTION FIVE
a) Using runlength coding, encode the following binary data
00000000000000100000000001000000011000000
(6 Marks)
b) Using Huffman encoding algorithm for a data file that has the following characters
Character A B C D E
Frequency 10 16 19 7 12
i)give the Huffman tree and code (6 Marks)
ii) encode ABEBADC (2 Marks)
b) What major factors affect the Quality of Service of a multimedia application?
(6 Marks)
