April 18, 2022

UNIVERSITY EXAMINATIONS: 2018/2019 EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN APPLIED COMPUTING BAC1107 DIGITAL PHOTOGRAPHY AND VIDEO EDITING FULL TIME/PART TIME DATE: AUGUST, 2019 TIME: 2 HOURS INSTRUCTIONS: Answer Question One AND any other TWO questions. QUESTION ONE a) What are the three stages of the production process? (3 Marks) b) How many lines of horizontal resolution are standard in NTSC? (2 Marks) c) Using the runlength coding encode the following binary data (4 Marks) 100000000100001000000000000111000001 d) Distinguish between cinematography and videography (4 Marks) e) State the challenges experienced in non-linear video editing (5 Marks) f) What is the rule of thirds as use in photography (2 Marks) g) Distinguish between i) backlighting and white balancing (2 Marks) ii) optical and digital zoom (2 Marks) iii) luminance and exposure (2 Marks) iv) wide angle and telephoto lens (2 Marks) v) concave and convex lens (2 Marks) QUESTION TWO a) Describe the following standards (8 Marks) i) JPEG ii) MPEG b) Using Huffman coding with Following frequencies Encode BCFGADE (8 Marks) c) What is the importance of transitions in video editing (4 Marks) QUESTION THREE a) A video file takes 4 hours download on a network with a bandwidth of 100KBps. If the video is in true colour and has a frame rate of 30fps. Calculate the resolution if the aspect rate is 16:9 (6 Marks) b) Describe (8 Marks) i) HDMI ii) HDTV c) What are the benefits enjoyed so far for the migration to digital TV in Kenya (6 Marks) QUESTION FOUR a) Using the Lempev Ziv coding algorithm, encode the following AABCDBCBFFBADDFFDAA (5 Marks) b) Explain (4 Marks) i) color temperature ii) white balancing c) An audio file has the following (16bit stereo, duration of 180 seconds and 96Khz (3 Marks) d) What roles do the following play in video production (6 Marks) i) costume designer ii) director e) What is the sampling frequency for a sound signal that has a frequency of 44.1khz (2 Marks) QUESTION FIVE a) A website is being developed for Write Rhymes, a company that writes poems and rhymes. A video clip is placed on the home page. It contains a child introducing the company by reciting a rhyme. The video will be played using streaming. i) What is meant by the term “streaming”? (2 Marks) ii) Describe one reason why it was decided to stream the video clip. (2 Marks) b) A choir use a recording studio to produce their own CD. The vocals for each track are captured using digitised sound. Explain the term “digitised sound”. (2 Marks) c) Carolyn uses photo editing software that allows her to store a photograph using JPEG or GIF file format. Describe one difference between these two file formats. (4 Marks) d) State why it would be an advantage to have hardware codecs built in to the video camera rather than loading in the software. (4 Marks) a) David is a car racing fan. He records short video clips of races at a local circuit and transfers the clips to his computer for editing. David uses video editing software to join the video clips taken into one continuous video clip. When he joins the clips together, David uses the timeline and transition features. i) Explain why the timeline feature will be useful for David when he is producing the single continuous clip. (3 Marks) ii) Name one transition David could use. (3 Marks)

UNIVERSITY EXAMINATIONS: 2019/2020 EXAMINATION FOR THE DEGREES OF BACHELOR OF SCIENCE IN APPLIED COMPUTING /SOFTWARE DEVELOPMENT/INFORMATION SECURITY AND FORENSICS BAC 1105/BISF 1105/BSD 1106: INSTALLATION AND CUSTOMIZATION FULLTIME/ PART TIME ORDINARY EXAMINATIONS DATE: AUGUST 2019 TIME: 2 HOURS INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions. QUESTION ONE [30 MARKS] a) Explain the purpose of the following features when installing computer memory: i) RAM notch [2 Marks] ii) Retaining clips [2 Marks] b) Differentiate between headless installation and silent installation as used in software installation. [4 Marks] c) William suspects that the processor of his computer is failing. Suggest in SIX steps how to replace the faulty processor. [6 Marks] d) Outline any SIX criteria that could be used for selecting a computer application package. [6 Marks] e) Write a simple batch file that will create INST_CUST as a sub-directory in your Desktop folder, then create TIZI as sub-directory in INST_CUST. After this, copy word document files from Documents to TIZI [2 Marks] f) (i) What is a virtual machine? [2 Marks] (ii) List and briefly explain the reasons behind virtualization in Installation and Customization. [4 Marks] g) Give the DOS command that you would use to hide the contents of the Download folder. [2 Marks] QUESTION TWO [20 MARKS] c) Distinguish between the following computer hardware components: i) Transistors and capacitors [2 Marks] ii) South bridge and north bridge [2 Marks] iii) Main memory and auxiliary memory [2 Marks] d) Many computer users have shifted from the liquid crystal display (LCD) monitors to the relatively new organic light emitting diode (OLED) monitors. Suggest THREE reasons for this shift. [4 Marks] e) i) List THREE internal parts of a disk [3 Marks] ii) Analyze FOUR methods for determining the speed of a computer hard disk [4 Marks] d) Identify the unit used to measure each of the following: i) Processor speed [1 Mark] ii) Monitor resolution [1 Mark] iii) Memory size [1 Mark] QUESTION THREE [20 MARKS] c) Briefly describe the steps that you would follow in installing vlc media player.[6 Marks] d) Give the appropriate Linux commands for carrying out the tasks given below: i) Create a user student2 [2 Marks] ii) Give student2 a password [2 Marks] iii) Compressing all files that start with the letters sh in the /etc directory [2 Marks] iv) Hide a directory called notes in /home/student2 [2 Marks] v) Starting the Graphical User Interface from the shell. [2 Marks] c) What is the difference between installation of a Server OS and Stand-Alone OS? [4 Marks] QUESTION FOUR [20 MARKS] a) Define the following types of software installation: i) Media based software installation [2 Marks] ii) Web based software installation [2 Marks] iii) Single exe installation [2 Marks] iv) Windows installer installation [2 Marks] b) Identify FOUR types of cards that can be added to a computer to enhance its capabilities. [4 Marks] c) Outline THREE ways of controlling heat inside the system unit. [3 Marks] d) Pre-installation system preparation and application testing are important aspects of the software installation process. Required Identify any FIVE tasks that should be undertaken as part of this process. [5 Marks] QUESTION FIVE [20 MARKS] a) Distinguish between primary partition and extended partition [2 Marks] b) Discuss how you would install and configure the following: i. RAM ii. Processor iii.CD-ROM Drive [9 Marks] c) Musa wants to buy a laptop computer. As his computer advisor, describe the features that you would give him on how to select the best laptop. [5 Marks] d) Describe the following microprocessor’s operating modes i). Real mode ii). Protected mode [4 Marks]

UNIVERSITY EXAMINATIONS: 2019/2020 EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN INFORMATION SECURITY & FORENSCIS BISF 1208: SEMICONDUCTORS AND ELECTRONIC DEVICES FULL TIME/ PART TIME DATE: MAY, 2020 TIME: 6 HOURS INSTRUCTIONS: Answer ALL Questions SECTION B: 20 MARKS a) Design a simple single transistor amplifier for a microphone (A gain of less than 200 is acceptable). Draw the circuit. Choose the transistor, resistors R1 to R5, capacitor C1. Mention the use of each component in the amplifier. Simulation with every circuit app (Android) will be an added advantage. Include any screen-shots of the simulation. (20 Marks) SECTION C: 20 MARKS Describe the construction and operation of the following optoelectronic devices. For each give two advantages and disadvantages. (i) photoconductive cells (ii) pn junction photodiodes (iii) photoisolators (iv) photovoltaic cells (20 Marks)

UNIVERSITY EXAMINATIONS: 2019/2020 EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN SOFTWARE DEVELOPMENT/ INFORMATION SECURITY & FORENSCIS BISF 1101/BSD 1102: COMPUTER ORGANISATION AND ARCHITECTURE FULL TIME/ PART TIME DATE: MAY, 2020 TIME: 6 HOURS INSTRUCTIONS: Answer ALL Questions SECTION B: 20 MARKS a) Sequential Logic circuits are essential for the operation of the computer. Describe the operation of a D-flip flop from first principles. Hence or otherwise Design a four bit RAM circuit based on the D flip flop. You are required to use the everycircuit app to simulate the circuit. Include truth tables and operation (20 Marks) SECTION C: 20 MARKS a) Combinational circuits are found in the ALU and other components. Design a seven segment LED display for a security system. All 10 digits and letters A-F should be displayed without ambiguity. Give the truth table, minimisation and implementation (20 Marks)

UNIVERSITY EXAMINATIONS: 2019/2020 EXAMINATION FOR THE DEGREE OF BACHELOR OF BUSINESS IN INFORMATION TECHNOLOGY BBIT 309: BUSINESS PROCESS RE-ENGINEERING FULL TIME/PART TIME/DISTANCE LEARNING DATE: MAY, 2020 TIME: 6 HOURS INSTRUCTIONS: Answer ALL Questions SECTION B: 20 MARKS QUESTION ONE Organizations today are facing increasing competition. The evolution of the global marketplace has forced organizations to compete on a global scale. Success in this environment is based on an organization’s ability to understand and satisfy customer requirements in an efficient and cost effective manner. Therefore, organizations must be responsive to change and able to adapt quickly and efficiently to remain competitive. Because of this environment, organizations are being forced to reevaluate their business processes and look for better ways to do things at a lower cost One of the methods that organizations are using to reevaluate their processes is known as business process reengineering (BPR). “This is the fundamental rethinking and radical redesign of business processes to achieve dramatic improvements in critical, contemporary measures of performance, such as cost, quality, service, and speed” The pressures for reengineering are just as intense in the public sector where shrinking budgets and public pressure for reform necessitate a change in the “business as usual” approach. There is currently a national effort to apply many of the same principles used in the private sector to the public sector. This effort is led by President Uhuru Kenyatta, in this call to reinvent the government, specific recommendations are made for “reducing costs and waste; changing the way government operates; and making government more responsive and effective. This initiative is part of an effort to achieve savings through specific programs focused on business process improvement such as HUDUMA centers. 1. Does the use of strategic planning, activity modeling, benchmarking, activity based costing, and simulation result in an improved process? 2. Do these techniques contribute to improving the performance of targeted organizational processes? (20 Marks) SECTION C: 20 MARKS QUESTION ONE In the current business landscape, the only constant is change; hence organizations should always strive to conduct their businesses effectively and efficiently. However reengineering has not always yielded fruitful results, as indicated by the 70% of the initiatives that have failed. The failure rate of the reengineered initiatives partly results from the fact that “Culture eats strategy for breakfast” Discuss (20 Marks)

UNIVERSITY EXAMINATIONS: 2019/2020 EXAMINATION FOR THE DEGREE OF BACHELOR OF BUSINESS IN INFORMATION TECHNOLOGY BBIT 307- INFORMATION SYSTEMS AUDITING & MANAGEMENT FULL TIME/ PART TIME/DISTANCE LEARNING DATE: MAY, 2020 TIME: 6 HOURS INSTRUCTIONS: Answer ALL Questions SECTION B QUESTION 1 (20 MARKS) KCA University has just employed you as an IS auditor. You first assignment is to setup this IS audit department. Outline from your own understanding the roles of the following people: a) The Executive. (5 Marks) b) IT Department. (5 Marks) c) Your (5 Marks) d) User (5 Marks) SECTION C QUESTION 2 (20 MARKS) There are several methods for storing archived data in any organization. a) Identity any Two possible methods for your organization (4 Marks) b) Discuss similarities in both methods (8 Marks) c) Discuss dissimilarities in both methods (8 Marks)

UNIVERSITY EXAMINATIONS: 2019/2020 EXAMINATION FOR THE DEGREE OF BACHELOR OF BUSINESS IN INFORMATION TECHNOLOGY BBIT 209: DECISION SUPPORT SYSTEMS FULL TIME/PART TIME/DISTANCE LEARNING DATE: MAY, 2020 TIME: 6 HOURS INSTRUCTIONS: Answer ALL Questions SECTION B: 20 MARKS The table below gives the covid 19 statistics for Kenya between 1st April and 21nd April 2020.Using a suitable DSS tool model the data below to enable the ministry of health project the new cases for the next 10 days a) Use a graphical illustration for the data given (8 Marks) b) Give a suitable and close fitting equation of the sample data (4 Marks) c) Project the trend for the next 10 days the and estimate the new cases for 1st May 2020 (4 Marks) d) Ensure the appropriate titles and naming of the axis thereafter Copy and paste the graph in Microsoft word for upload (4 Marks) SECTION C: 20 MARKS Using the goal seeking feature in Ms excel demonstrate a scenario where an employee earns a basic salary of 50000. The overtime payrate per hour is 2500. The total overtime amount =hours worked x payrate per hour. The total gross pay = basicpay+overtime overtime amount. The Tax payable = 30% of the gross pay. The netpay = grosspay-tax payable i) Enter the date in a worksheet to computer the net pay if the overtime hrs are 15 (6 Marks) ii) Using the goal seeking feature how many hours do you need for overtime to take home a net pay of 130,000 (4 Marks) iii) Using the scenario manager the worst case and the best case scenario of not having overtime and having 80 over hours (6 Marks) iv) Copy the worksheet onto a ms word document for upload (4 Marks)

UNIVERSITY EXAMINATIONS: 2019/2020 EXAMINATION FOR THE DEGREE OF BACHELOR OF BUSINESS IN INFORMATION TECHNOLOGY BBIT 201: INTERNET APPLICATION PROGRAMMING FULL TIME/ PART TIME/ DISTANCE LEARNING DATE: MAY, 2020 TIME: 6 HOURS INSTRUCTIONS: Answer ALL Questions SECTION B: (20 MARKS) QUESTION ONE a) Briefly explain what the code below will do [1 Mark] <html> <body> <script type=”text/javascript”> var i=0 for (i=0;i<=10;i++) { document.write(“The number is ” + i) document.write(“<br />”) } </script> </body> <html> b) Using the table below as a guide for grading, write a JavaScript program to grade student marks for a single subject, using; i. if..else structure [4 Marks] ii. switch structure [5 Marks] Marks     Grade 0-              39 F 40-            49 D 50-            59 C 60            -69 B 70-            100 A c) Write HTML code to generate the following table [10 Marks] KCA UNIVERSITY DEPARTMENTS FoCIMSoB SPP Academic Programmes Academic Programmes Professional Programmes 1. BScIT 1. Bcom 1. ATC 2. BScSD 2. MBA 2. CPA 3. BScAC 3. MSc-Finance & Investment 3. CICT 4. BBIT 4. CCNA 5. MSc-Data Communications 5. A+ Certification SECTION B: (20 MARKS) QUESTION ONE a) Write a JavaScript that display the first ten positive integers in ascending order using: i. a while loop that display the first ten positive integers in ascending order [3 Marks] ii. a for loop that display the first ten positive integers in ascending order [3 Marks] b) Write HTML code that creates a form asking for the details listed below: [3 Marks] Full Name E-mail Address Post-code Phone Contact c) Radio buttons are often used on questionnaires to indicate a person’s opinion, or their likes and dislikes. They can also be used for ‘yes’ or ‘no’ responses. Write codes that utilize radio buttons to get information from the question “Do you agree that the Earth orbits the Sun?”, with optional response as follows: [3Marks] Strongly Agree Agree Disagree Strongly disagree d) Create an html page with the following specifications; Title should be about NAIROBI CITY, Place the City name at the top of the page in large text and in blue color, Add names of landmarks KICC, UHURU PARK, KENCOME, RAILWAYS, and KCA UNIVERSITY-TOWN CAMPUS in different color, style and typeface. The name KCA UNIVERSITY should be blinking . Add scrolling text with a message of reading “WELCOME TO NAIROBI”. [5 Marks] e) Write a HTML code to generate following output: [2 Marks] 1. Chapter One a. Section One b. Section Two c. Section Three 2. Chapter Two 3. Chapter Three

UNIVERSITY EXAMINATIONS: 2021 COLLEGE OF BUSINESS ORDINARY EXAMINATION FOR BACHELOR OF COMMERCE BAM2201: TOTAL QUALITY MANAGEMENT (WEEKEND) DATE: APRIL, 2021 TIME: 6 HOURS INSTRUCTIONS: Answer ALL QUESTIONS QUESTION ONE: (20 MARKS) a) As the newly appointed Manager of Quality Management in an upcoming manufacturing firm, explain to the Board of Directors the relationship between Quality Control and Quality assurance, clearly showing the roles they play as functions in the Quality hierarchy. (10marks) b) Total Quality Management is not a philosophy but a management technique for improving quality in organizations. Discuss the merits and/or demerits of this statement. (10 marks) QUESTION TWO: (20 MARKS) a) Describe the principles of TQM citing the views of: i) Edward Deming ii) Joseph Juran iii) Philip Crosby (10 Marks) b) Discuss the Roles and Benefits of cross functional teams within a Quality Improvement system in general (10 Marks) c) Question Three The management of food quality in a catering industry is different from management of product quality in the manufacturing industry. Discuss (10 Marks)

UNIVERSITY EXAMINATIONS: 2019/2020 EXAMINATION FOR THE BACHELOR OF SCIENCE IN APPLIED COMPUTING BAC 5109: HUMAN ASPECTS OF FORENSICS FULL TIME/PART TIME ORDINARY EXAMINATIONS DATE: MAY, 2020 TIME: 6 HOURS INSTRUCTIONS: Answer ALL Questions SECTION 2: QUESTION TWO [20 MARKS] You have been tasked by the board of a large organization to test the security awareness level of the employees of the company. The attack vector that will be used is a USB carrying malicious software. The goal with this scenario is to get the front desk receptionist to accept your USB drive that has the malicious program on it. The program will auto load and scrape her system for all information, such as usernames, passwords, email accounts, SAM files that contain all the passwords on the system, and more, copying it all to a directory on the USB drive. Your pretext: you were attempting to drop off your CV before the deadline and on the way, you spilled coffee all over your CV while avoiding a wreck less driver. You were dropping off your daughter to school and didn’t have enough time to print out more copies as you were close to the office and the deadline was approaching. a) Using the scenario above, identify each key element of the communication module and explain how each element would be effectively used in accomplishing the goal (15 Marks) b) List five sources of information gathering. (5 Marks) SECTION 3: QUESTION THREE [20 MARKS] Cybercriminals use the same tools used by Cybersecurity professionals. As a Cyber and Social Engineering expert, you should be familiar with some of these tools used to investigate, mitigate and prevent attacks. Use your knowledge of Social Engineering tools to answer the following questions: a) i) How are Social Engineering tools categorized? (3 Marks) ii) Provide 2 examples for each category. (6 Marks) b) What is the Social Engineering Toolkit? (3 Marks) c) i) Outline four prominent uses of the social engineering toolkit (4 Marks) ii) Describe four methods can be used to employ a social engineering attack using the social engineering toolkit? (4 Marks)

UNIVERSITY EXAMINATIONS: 2019/2020 EXAMINATION FOR THE BACHELOR OF SCIENCE IN APPLIED COMPUTING BAC 3216 – INFORMATION SYSTEMS SECURITY POLICY FULL TIME/PART TIME ORDINARY EXAMINATIONS DATE: MAY, 2020 TIME: 6 HOURS INSTRUCTIONS: Answer ALL Questions SECTION 2: 20 MARKS 1. Your CIO has tasked you with coming up with a Business Continuity Plan. Analyze the steps involved in developing a Business Continuity Plan. (10 Marks) 2. Explain the personnel security policies KCA University would implement in securing its information (10 Marks) SECTION 3: 20 MARKS 1. Describe the different types of security controls used in safe guarding a system. (14 Marks) 2. Servers are popular targets for attackers. Describe the steps you would take to protect them (6 Marks)

UNIVERSITY EXAMINATIONS: 2019/2020 EXAMINATION FOR THE BACHELOR OF SCIENCE IN APPLIED COMPUTING BAC 3215 – CYBER CRIMINOLOGY FULL TIME/PART TIME ORDINARY EXAMINATIONS DATE: MAY, 2020 TIME: 6 HOURS INSTRUCTIONS: Answer ALL Questions SECTION B: 20 MARKS QUESTION ONE Cybercrime being a major cause of concern throughout the world is controlled and curbed by different policies in place. These policies are designed to make sure that cybercrime is reduced and gradually eliminated from society. Having this in mind, discuss the evolution of cybercrime and the attacks that led to the development of cybercrime policies in Kenya (20 Marks) SECTION C: 20 MARKS QUESTION ONE Young adults use the internet more than any other age group which is why they are the first victims of cybercrime. In light of the above, discuss how cyber criminology affects the younger generations and how it can cause problems for them. (20 Marks)