UNIVERSITY EXAMINATIONS: 2019/ 2020
EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN
INFORMATION TECHNOLOGY/ BUSINESS INFORMATION
TECHNOLOGY/ APPLIED COMPUTING/ SOFTWARE DEVELOPMENT/
INFORMATION SECURITY & FORENSCIS
BIT 3204A/ BBIT 302: DISTRIBUTED MULTIMEDIA SYSTEMS
FULL TIME/PART TIME/DISTANCE LEARNING
DATE: MAY, 2020 TIME: 6 HOURS
INSTRUCTIONS: Answer ALL Questions
SECTION B: 20 MARKS
QUESTION ONE
KCA University will be rolling out web conferencing system to facilitate the delivery of ‘teach at
home’ and ‘learn at home’ to lecturers and students. It has Main campus, kitengela, town campus
and kisumu campus. Prepare a comprehensive report to the management of the university on
important aspects they need to take into account from the website, e-learning platform,
webconferencing. The report should address the implantation and the quality of service
expectations with an inclination to the concepts learnt in multimedia systems applications
(20 Marks)
NB: Marks will only be awarded for answers that are well thought out and relevant to the
case study and NOT those that will be copy pasted from the internet.
SECTION C: 20 MARKS
QUESTION ONE
The KCA university network has about 8000 users who will be accessing the real time lectures
and/or progressive download main campuses. The maximum file size of the downloaded lesson
is 680MB lasting for 2hours.
i) Compute the recommended bandwidth if the file is be downloaded in 3 minutes by all the
users (3 Marks)
ii) Compute the frame rate If colour depth is 2 bytes and resolution 640×480 (4 Marks)
iii) What is the implication on the download time if the rate is increased to 30fps
(3 Marks)
iv) What is the implication of iii) on file size (3 Marks)
v) What is the compression ratio on D. if the file is to be download in 3 minutes
(3 Marks)
vi) Compute the aspect ratio in B. (1 Mark)
NB: Marks will only be awarded for answers that are well thought out and relevant to the
case study and NOT those that will be copy pasted from the internet.
