April 24, 2022

UNIVERSITY EXAMINATIONS: 2017/2018 EXAMINATION FOR THE DEGREES OF BACHELOR OF SCIENCE IN SOFTWARE DEVELOPMENT/ SECURITY & FORENSICS/APPLIED COMPUTING BAC1105/BISF 1105/BSD 1106 INSTALLATION AND CUSTOMIZATION FULLTIME/ PART TIME ORDINARY EXAMINATIONS DATE: AUGUST, 2018 TIME: 2 HOURS INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions. QUESTION ONE [30 MARKS] a) i) A computer chassis holds a number of things. Describe any FOUR of these (4 Marks) ii) Describe any THREE input/output ports and state the function of each (6 Marks) b) Explain the differences between the following installation and customization concepts: i) SIMM and DIMM (4 Marks) ii) SATA and PATA (4 Marks) c) Define ROM BIOS and identify THREE purposes served by ROM BIOS (5 Marks) d) Describe any THREE tools used by a PC repair technician (3 Marks) e) Michael wishes to type his assignment on his desktop computer but the Word processing program is taking too long to open. In fact, all programs on his computer run too slowly. Offer advice of how this situation can be improved (4 Marks) QUESTION TWO [20 MARKS] a) The CMOS stores changeable information about our system. i) Cite any TWO reasons why we might want to reset CMOS (2 Marks) ii) Give the necessary steps for resetting CMOS (4 Marks) b) Define the term “System maintenance” and briefly state its function (3 Marks) c) Explain any THREE types of hardware maintenance. (6 Marks) d) When working with any electrical device, disconnect power if you notice a dangerous situation that might lead to electrical shock or fire. Describe any FIVE such potentially dangerous situations (5 Marks) QUESTION THREE [20 MARKS] Explain the key steps involved in performing the following actions: a) Installing a device driver (5 Marks) b) Installing a wireless digital subscriber line (DSL) (5 Marks) c) Partitioning an external USB hard drive (5 Marks) d) Adding a new RAM chip to your computer (5 Marks) QUESTION FOUR [20 MARKS] a) What is a “device driver”? Briefly Explain (2 Marks) b) Discuss any TWO purposes of device drivers (4 Marks) c) Viruses are a major threat to electronic information: i) Define the term “Computer virus” (1 Mark) ii) Describe the THREE main components of a computer virus (3 Marks) iii) Discuss any THREE classifications of computer viruses (6 Marks) d) Distinguish between AC and DC as used in electronic hardware (4 Marks) QUESTION FIVE [20 MARKS] a) The disk operating system (DOS) consists of two parts, namely the kernel and the command.com. Describe the functions of each (4 Marks) b) Briefly describe the following MS-DOS commands: i) MKDIR ii) CLS iii) PATH iv) VERIFY v) VOL vi) TIME (6 Marks) c) Explain what happens during the boot process (10 Marks)

UNIVERSITY EXAMINATIONS: 2018/2019 EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN INFORMATION TECHNOLOGY BAC 2303: NETWORK PROGRAMMING BIT 3105: NETWORK PROGRAMMING BCT 2203: CLIENT/SERVER COMPUTING FULL TIME/PART TIME/DISTANCE LEARNING DATE: DECEMBER 2018 TIME: 2 HOURS INSTRUCTIONS  Answer Question ONE (Compulsory) and Any Other Two Questions. Question 1 (30 Marks) – Compulsory (a) Briefly explain why heterogeneity caused by different operating systems and hardware present challenges to distributed application programming. [4 Marks] (b) Identify and briefly discuss any two (2) computing resources that an operating system manages. [4 Marks] (c) List and briefly explain three (3) benefits of middleware to network applications. [6 Marks] (d) Explain why it is necessary to have the source address on an Ethernet frame. [4 Marks] (e) (i) State the similarity between physical and logical addresses. [2 Marks] (ii) What is the difference between the two? [2 Marks] (f) Define the following terms as they relate to network programming: (i) port [1 Mark] (ii) host [1 Mark] (iii) child process [1 Mark] (iv) transparency [1 Mark] (g) List and briefly explain any two (2) things a child process inherits from a parent process. [4 Marks] Question Two – (Total Marks: 20) (a) (i) With an aid of a simple program, explain the concept of tiers. [6 Marks] (ii) Is your program a “1-Tier”, “2-Tier” or “3-Tier”? Explain. [4 Marks] (b) What are the entries that make up a half association? Describe them. [6 Marks] (c) It has been said that flow control and congestion control are equivalent. Is this true for the Internet’s connection-oriented service? Are the objectives of flow control and congestion control the same? [4 Marks] Question Three – (Total Marks: 20) (a) A middleware provides two (2) forms of distribution transparency. List and discuss them. [4 Marks] (b) Extensibility as an attribute of a middleware refers to the ease with which a system can be adapted to meet new requirements. List and explain the three (3) types of extensibility. [6 Marks] (c) One can not discuss a real data link layer implementation without Ethernet featuring in the discussion. Explain the three (3) perspectives of Ethernet in this discussion. [6 Marks] (d) Type of Service and Time-To-Live are two of the many fields of an IP datagram. Briefly explain their function. [4 Marks] Question Four – (Total Marks: 20) KCA University has purchased the Class B IP address 150.5.0.0. The Network Engineer has discovered that he needs to create subnets with 100 hosts for the University. You have been assigned the task of implementing these subnetworks using the purchased Class B address. (a) What is the number of hosts in binary? [2 Marks] (b) What is the subnet mask for entire network? Show your working. [4 Marks] (c) Determine the increment and list the IP address ranges for the first six subnetworks. [6 Marks] (d) Discuss any four (4) merits of using VLANs in your network. [4 Marks] (e) Briefly discuss why subnetting is important in distributed systems deployment. [4 Marks] Question Five – (Total Marks: 20) (a) Using the appropriate Network APIs, differentiate between a Client program and a Server program. [6 Marks] (b) List and breifly explain the two (2) types of TCP segements. [4 Marks] (c) Using an appropriate diagram, explain how RPC is implemented. [10 Marks]

UNIVERSITY EXAMINATIONS: 2018/2019 EXAMINATION FOR THE DEGREE OF BACHELOR OF APPLIED COMPUTING BAC 2207: PROFESSIONAL WRITING FULL TIME/PART TIME DATE: DECEMBER, 2018 TIME: 2 HOURS INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions. QUESTION ONE a) Explain two principal components to citing references (6 Marks) b) Explain the term plagiarism and why it is not condoned in academia. (6 Marks) c) Highlight the things you need to avoid in discussion in scientific writing (6 Marks) d) Explain assessment irregularities you must avoid when writing a research paper (6 Marks) e) Explain the purpose of discussion in scientific writing (6 Marks) QUESTION TWO a) Explain five principles of news writing. (10 Marks) b) From the following select the correct sentence. (4 Marks) i. A. The affects of the war were devastating. B. The effects of the war were devastating. ii. A. Your cigarette tastes good, like a cigarette should. B. Your cigarette tastes good, as a cigarette should. c) Replace the following phrases with one word. (6 Marks) i. Are of the same opinion ii. A majority of iii. In all cases QUESTION THREE Literature Review is a key step in an academic writing, a step the researcher has to undertake once he/she come-up with a project idea. a) Clearly explain what is “literature review” (2 Marks) b) Name the five Reasons and Benefits of literature review. (10 Marks) c) Outline the four principal sources of published materials and clearly explain each, and what is attainable from each of them. (8 Marks) QUESTION FOUR a) Outline the steps one can follow in order to avoid plagiarism (8Marks) b) Briefly explain the three parts of inverted pyramid method of writing (12 Marks) QUESTION FIVE a) Define and identify the purpose of writing. (10Marks) b) Arrange the following information correctly using the APA style of documentation (10Marks) i) A book edited by Jane Kiiru, Wayne Musungu and John Wafula. The book is entitled Worders of God and it was published by Mwalimu publishers in Nairobi in the year 2005. ii) A 3 rd edition of a book edited by Elizabeth Andeyo. The book is entitled Academic Day. It was published by Longhorn Publishers in Nairobi. The year of publication is 2004. iii) A book written by Kenya Instituted of Education in 2001 and published by Government Printers and has the title English Hand Book for Teachers. The town of publication is Nairobi. iv) A 10 th edition of a book written by S.J. Hopkins with the title Drugs and Pharmacology for nurses. It was published by Churchill Livingstone in 1989 at Melbourne. v) An article written by Charles Otieno. It appeared in the Sunday Nation. The month of May 23 rd . The title of the article is Enforce Smoking Ban. It is on page 12. The year it appeared in the newspaper is 2006.

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: DECEMBER, 2018 TIME: 2 HOURS INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions. QUESTION ONE –COMPULSORY (30 MARKS) a) i) Define audio editing ( 2 Marks) ii) What are the challenges of non-linear video editing? (4 Marks) b) What are the two main disadvantages of the sound effects in video production? (4 Marks) c) An audio file occupies 7680KB. If its recorded at (44.1khz, 16 bit and stereo). What is the duration in minutes (4 Marks) d) Most of the time sound is represented graphically as a wave. Explain what is meant by i) The wavelength (2 Marks) ii) The quantization (2 Marks) e) What do the following acronyms mean. i) IEEE ii) HDMI iii) PAL iv) SECAM (4 Marks) f) Distinguish between transitions and credits (4 Marks) g) State the Nyquist sampling theorem (2 Marks) h) Why are standards important in video capturing? (2 Marks) QUESTION TWO a) A video file of a size 6000 GB , colour depth of 24 bits, duration of 3 hours, and frame rate of 30fps, takes 3 hours to download using a bandwidth of 100MBps. Calculate i) the pixel count of the camera in megapixels (8 Marks) ii) the resolution, if the aspect ratio is 4:3 (2 Marks) iii) the bandwidth requirements, if 200 users are to download the same video for 2hrs concurrently (2 Marks) iv) cost of the bandwidth in a) if the cost of 128KBps is Kshs 5,000 (4 Marks) b) Recommend a suitable method to enable your target audience to view the video (4 Marks) QUESTION THREE a) Define a pixel (1 Mark) b) Camera has a resolution of 7150×5900. If the size of the graphical images created is 50MB. Calculate i) Pixel count (2 Marks) ii) Colour depth (2 Marks) iii) Number of colours that can be displayed (2 Marks) iv) Aspect ratio (2 Marks) c) If the storage space is 16GB for the camera in b) and that it can take 250 pictures, what is the compression ratio for the algorithm used (2 Marks) d) State Four advantages of using JPEG format over BMP format in photo editing (4 Marks) e) State FIVE features found in film cameras that cannot be challenged by digital cameras (5 Marks) QUESTION FOUR a) State the challenges that are experienced in aerial photography (6 Marks) b) Using run length coding, encode the following binary data 1000000000000010000000001000000000110000000001 (6 Marks) C) Using Huffman encoding algorithm for a data file that has the following characters Character A B C D E F Frequency 20 6 12 4 10 15 i) Draw the Huffman tree and code (6 Marks) ii) encode FABEDC (2 Marks) QUESTION FIVE a) State FIVE considerations in producing a professional documentary? (5 Marks) b) State four factors that are essential in video recording (5 Marks) c) What is the size of uncompressed stereo sound with CD quality for 10 minute of audio : (4 Marks) d) Using LZ coding encode the following text ABBBBBAMMMNABCBAABBM (6 Marks)

UNIVERSITY EXAMINATIONS: 2018/2019 EXAMINATION FOR THE DEGREES OF BACHELOR OF SCIENCE IN APPLIED COMPUTING /SOFTWARE DEVELOPMENT/INFORMATION SECURITY AND FORENCIS BAC 1105/BISF 1105/BSD 1106: INSTALLATION AND CUSTOMIZATION FULL TIME/ PART TIME ORDINARY EXAMINATIONS DATE: DECEMBER, 2018 TIME: 2 HOURS INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions. QUESTION ONE [30 MARKS] a) Describe each of the following types of hard disk interfaces: i) IDE (2 Marks) ii) SATA (2 Marks) b) Discuss any FOUR factors that one should consider before purchasing software (4 Marks) c) i) Explain FOUR reasons why we should maintain computers (4 Marks) ii) State THREE computer hardware maintenance practices. (3 Marks) b) Discuss TWO causes of ‘out of memory’ error in relation to computers. (2 Marks) c) Differentiate between a surge protector and a UPS (2 Marks) d) Define the term malware as used in computer. Describe any FOUR ways of preventing computer malware. (5 Marks) e) Peter replaced a printer cartridge with a new one, but the printer produced distorted printouts. Explain three possible causes for this problem (6 Marks) QUESTION TWO [20 MARKS] a) What is computer Motherboard? List any TWO components attached to it. (3 Marks) b) Mary intends to use a USB port instead of a parallel port to connect peripheral devices on her computer. Outline any FOUR advantages of USB port that could be influencing her choice (4 Marks) c) Differentiate between on-board devices and peripheral devices giving TWO examples for each case. (4 Marks) d) i) Define the term software and mention TWO main categories of software. (3 Marks) ii) State and explain THREE ways of fixing software problems in a computer. (6 Marks) QUESTION THREE [20 MARKS] a) Define the following terms and give an example: i) System software (2 Marks) ii) Utility software (2 Marks) iii) Application software (2 Marks) b) State and explain FOUR factors that one should consider before purchasing a laptop (4 Marks) c) Explain the use of the following types of computer ports: (5 Marks) i) VGA port ii) Ethernet port iii) DVI port iv) FireWire port v) PS/2 port d) Philomena recently noted that some critical documents in her computer were encrypted and she was forced to pay a certain fee through the Internet to decrypt her files Required: i) Identify this type of attack (1 Mark) ii) Outline any FOUR possible causes for the attack (4 Marks) QUESTION FOUR [20 MARKS] a) What is the boot order? Briefly Explain (2 Marks) b) Explain the process and implication of setting the boot order (4 Marks) c) Explain the function of each of the following keys during POST process in a computer system: i) Esc (2 Marks) ii) F10 (2 Marks) iii) F12 (2 Marks) d) Computer technicians experience several challenges when carrying out routine maintenance. Outline any FOUR challenges that can be experienced (4 Marks) e) Explain what is BIOS and describe any THREE kinds of BIOS. (4 Marks) QUESTION FIVE [20 MARKS] a) Briefly explain the difference between a Graphical User Interface (GUI) and a CommandLine Interface-based operating system. (2 Marks) b) While trying to use MS DOS you encounter the COPY and XCOPY commands. Clearly explain when the use of these commands is appropriate. (2 Marks) c) Explain the difference between installing an operating system and installing an Office production suite such as MS Office. (6 Marks) d) What do the following shortcuts or combination keys do while working on a Windowsbased system? i) Ctrl + Shift + Down Arrow Key (2 Marks) ii) Windows Key + L (2 Marks) iii) Ctrl + Alt + Del (2 Marks) iv) Alt + F4 (2 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)

UNIVERSITY EXAMINATIONS: 2018/2019 EXAMINATION FOR THE DEGREES OF BACHELOR OF SCIENCE IN INFORMATION TECHNOLOGY/ SOFTWARE DEVELOPMENT/ BUSINESS IT/ INFO. SEC& FORENSICS/ APPLIED COMPUTING BAC 1102/ BISF 1102/ BSD 1105/ BIT 1106/ BBIT 108: OPERATING SYSTEMS FULLTIME/ PART TIME/DISTANCE LEARNING ORDINARY EXAMINATIONS DATE: DECEMBER, 2018 TIME: 2 HOURS INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions. QUESTION ONE [30 MARKS] a) Operating systems design starts by defining goals and specifications. Briefly describe THREE objectives of modern operating systems design. (3 Marks) b) Give any FOUR functions performed by an operating system (4 Marks) c) Describe the following operating system categories and offer examples: i) Embedded operating system (2 Marks) ii) Stand-alone operating system (2 Marks) iii) Network operating system (2 Marks) d) Differentiate between uniprogramming and multiprogramming and draw a diagram to illustrate each. (6 Marks) e) Describe FOUR cases in which CPU scheduling can happen. (4 Marks) f) Describe FOUR factors that are considered when deciding a good scheduling algorithm. (4 Marks) g) Briefly explain how context switching occurs in operating systems (3 Marks) QUESTION TWO [20 Marks] a) Explain in detail how the operating system acts as a user-computer interface. (5 Marks) b) Utilities are specialized programs that make computing easier. Describe any FOUR Windows utilities (4 Marks) c) i) What is the difference between a program and a process? (2 Marks) ii) The operating system is responsible for several activities in connection with process management. Describe any FOUR of these activities (4 Marks) d) A process goes through a series of discrete process states. State and explain FIVE states in which it can occur. (5 Marks) QUESTION THREE [20 Marks] a) Explain the following terms: i) Job control language (2 Marks) ii) Distributed computing (2 Marks) iii) Multi-threaded process (2 Marks) iv) Race condition (2 Marks) b) Distinguish between non-preemptive scheduling and preemptive scheduling and give TWO examples from each (6 Marks) c) Describe any THREE operating systems security threats and offer ONE example for each threat. (6 Marks) QUESTION FOUR [20 Marks] a) Briefly explain the meaning of the term ‘file system’ (2 Marks) b) In file naming what do the following file extensions stand for? (5 Marks) i) File.mp3 ii) File.html iii) File.txt iv) File.zip v) File.jpg c) i) Explain the concept of operating system security (2 Marks) ii) Briefly describe the any THREE operating system security goals (3 Marks) d) State and explain any FOUR layers of I/O software. (8 Marks) QUESTION FIVE [20 Marks] a) Computer Software can roughly be divided into TWO forms: system programs and application programs. Briefly discuss these two categories. (4 Marks) b) Briefly explain the meaning of the following concepts in the context of operating systems: i) Virtual memory (2 Marks) ii) Shell (2 Marks) iii) Drivers (2 Marks) c) State and explain TWO types of file access methods. (4 Marks) d) Discuss any THREE page replacement algorithms in memory management (6 Marks)

UNIVERSITY EXAMINATIONS: 2018/2019 EXAMINATION FOR THE DEGREE OF BACHELOR OF BUSINESS IN INFORMATION TECHNOLOGY BUSS307 ENTERPRISE RESOURCE PLANNING FULL TIME/PART TIME/DISTANCE LEARNING DATE: DECEMBER, 2018 TIME: 2 HOURS INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions. QUESTION ONE (Compulsory) a) Identify the differences between a transactional and reporting database? (4 Marks) b) Discuss the potential benefits and drawbacks of outsourcing ERP systems (6 Marks) c) Describe five core functional modules of an ERP (5 Marks) d) Should every business invest in an ERP package. Justify your answer (3 Marks) e) Differentiate between service-oriented architecture and Web services architecture for ERP systems (4 Marks) f) List the major differences between ERP life cycle and SDLC (4 Marks ) g) In relation to ERP discuss what are third-party products (4 Marks) QUESTION TWO a) ERP system architecture is organized in layers or tiers .Three-layer architecture is the most prevalent today . i. Identify the layers included (3 Marks) ii. Using an ERP software example describe the role of each layer identified in (i) (6 Marks) b) The selection of a vendor that best meets the needs and long-term direction of the company is a critical first step in a successful implementation. Describe the process you would use to select an ERP vendor for your organisation (11 Marks) QUESTION THREE a) Discuss how an organization with an ERP system should plan for a disaster (6 Marks) b) What are some the key implementation considerations that should be addressed as part of the planning process, especially related to using an integrated ERP and transforming the organizational culture? (8 Marks) c) Describe some of the top ERP trends that are predicted to shake the ERP landscape in 2018. (6 Marks) QUESTION FOUR a) Many ERP vendors offer virtualization options for implementation. i) Describe two common models used for ERP virtualisation implementation (6 Marks) ii) Describe the virtualisation solutions offered by Microsoft and Oracle for their ERP systems (6 Marks) b) Corporate governance has become a key aspect of well run companies . Discuss how acts like the SOX act have impacted ERP systems? (6 Marks) c) What is the role of the project management office in an ERP implementation? (2 Marks) QUESTION FIVE a) Imagine that your uncle owns and operates a construction company. The company owns a number of very expensive pieces of machinery, such as backhoes, for building houses and apartment buildings. Up until now, your aunt has “taken care of the books” by keeping financial records by hand. However, business is picking up, and she has gotten far behind in filing taxes, paying bills, and so on. Write a persuasive proposal to your uncle about why he needs an ERP system and how it would help with not only the burden of billing, payroll, and filing taxes, but also with keeping track of the company’s expensive machinery. (12 Marks) b) Discuss how the Y2K (year 2000) problem affect the sales of ERP systems? (5 Marks) c) Describe the steps involved in OPM3. (3 Marks)

UNIVERSITY EXAMINATIONS: 2018/2019 EXAMINATION FOR THE DEGREE OF BACHELOR OF BUSINESS INFORMATION TECHNOLOGY BUSS306 EVALUATION OF BUSINESS INVESTMENTS FULL TIME/PART TIME/DISTANCE LEARNING DATE: DECEMBER, 2018 TIME: 2 HOURS INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions. QUESTION ONE a) Consider the following two securities P and Q with the following characteristics: Assume that an investor owns 60% of security P and 40% of Security Q. Required: i. Determine the covariance between security P and Q. (4 Marks) ii. Determine the correlation coefficient of P and Q. (4 Marks) iii. Determine the expected return of the portfolio. (2 Marks) iv. Determine the percentage risk diversification. (4 Marks) b) Explain any 5 conceptual differences between the arbitrage pricing theory and capital asset pricing model. (10 Marks) c) Discuss Three (3) limitations of capital Asset Pricing Model (6 Marks) QUESTION TWO a) James is currently holding a portfolio consisting of shares of companies quoted on the Nairobi Securities exchange as follows: Company Number of shares Beta-equity Market price Expected return held coefficient per share on equity (5) The current market return is 14% per annum and the treasury bills yield is 9% p.a. Required: i. Calculate the risk of James’ portfolio relative to that of the market. (6 Marks) ii. Explain whether or not James should change the composition of his portfolio. (8 Marks) b) Using a well labeled diagram differentiate between efficient and optimal portfolio. Your diagram should be supported by the necessary explanations (6 Marks) QUESTION THREE a) Explain the benefits of merger and acquisition. (10 Marks) b) Explain the main defensive tactics that a company defends itself from hostile takeover. (10 Marks) QUESTION FOUR a) Explain the term market efficiency (1 marks) b) Identify and explain the three forms of market efficiency (9 Marks) c) Differentiate between portfolio theory and Arbitrage Pricing Theory (APT) (10 marks) QUESTION FIVE An investor is evaluating the portfolios shown below Portfolio Expected return (%) Standard Deviation (%) The expected return on the market portfolio is 10% with a variance of 16%. The risk free of interest rates is 6%. Required: i) Using the CML, advice the investor on which of the above portfolios are efficient or inefficient (12 Marks) ii) In the case of any inefficient portfolio (s) above, state what the standard deviation should be for efficiency to be achieved the above expected returns on the respective portfolio (s) (4 Marks) iii) Differentiate between Security Market Line (SML) and the Capital Market Line (CML) (4 Marks)

UNIVERSITY EXAMINATIONS: 2018/2019 EXAMINATION FOR THE DEGREE OF BACHELOR OF BUSINESS INFORMATION TECHNOLOGY BUSS305 STATISTICAL DECISION MAKING FULL TIME/PART TIME/DISTANCE LEARNING DATE: DECEMBER, 2018 TIME: 2 HOURS INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions. QUESTION ONE (30 MARKS) (a)Define the following terms as applied in statistics (i) Sampling distribution (ii) Type I error (iii) Ordinary Least Squares method (iv) Parameter (v) Critical region (5 Marks) (b) In a study of malaria patients in Kisumu, it was established that persons who died from this disease during each of the past ten years were as follows. 450,200,180,90,72,560,720,450,500 and 70. Calculate the mean and 95% confidence interval for the data. (6 Marks) (c) Briefly describe(i) stratified random sampling method. (ii) Multistage sampling method (6 Marks) (d) The manager of a supermarket recorded the number of customers who were served at the store between 6.00pm and 9.00pm for 12 consecutive Thursdays. The results were as follows: 285 292 243 286 301 258 286 208 215 263 252 224 Find the (i) mean (2Marks) (ii) Median (2Marks) (iii) Standard deviation (3 Marks) (e) It is claimed that the mean weight of students at KCAU is at least 62kgs with a standard deviation of 12kgs.To test this claim a random sample of 100students was taken and a sample mean weight of 56kgs was obtained. Does this provide sufficient evidence to reject the claim at 5% level of significance? (6 Marks) QUESTION TWO (20 MARKS) (a) Briefly describe three non-parametric tests commonly used in business. (6 Marks) (b) A movie producer is bringing out a new movie. In order to map out his advertising campaign, he wants to determine whether the movie will appear most to particular age group or it will appear most to a particular age group or it will appear equally to all age groups. The producer takes a random sample from persons at from persons attending a preview of the new movie and obtained the following results. At 5% level of significance, what inference will draw from this data? (14 Marks) QUESTION THREE (20 MARKS) (a) Distinguish between one sided and two sided tests in hypothesis. (4 Marks) (b) The weights of 18 cans of tinned fruits were obtained to test the claim that the mean weight is 17gms.The sample weights were obtained as follows: 12 20 13 10 18 26 30 19 22 15 14 11 20 21 23 17 18 24 Determine whether there is enough evidence to refute the claim at 5% level of significance. (8 Marks) (c) A university random sample of 120 male students and 80 female students has been taken. Among the male students 37% say that computing facilities are not adequate, whereas 32% female students say computing facilities are not adequate. (i) Construct a 95% confidence interval for the difference between male and female students’ opinion about computing facilities. (6 Marks) (ii) At 95% level of confidence, is there is a significant difference between male and female students opinion about computing facilities at the university? (2 Marks) QUESTION FOUR (20 MARKS) (a) Explain any three applications of regression analysis in business today. (6 Marks) (b) In a random experiment to predict a person’s weight using the size of his shoe, the following data was obtained. (i) Draw a scatter diagram (ii) Fit a regression line of Y on X (iii) Predict the weight of a person who’s shoe is 9.0 inches. (iv) Calculate the correlation coefficient. (14 Marks) QUESTION FIVE (20MARKS) (a) Give five reasons on why sampling may be preferred over complete enumeration (census). (5 Marks) (b) Explain the importance of statistics in Management Decision Making. (8 Marks) (c ) An investor is considering three alternatives-a certificate of deposit, a low risk stock fund, and a high risk stock fund- for a $20,000 investment. The investor considers three possible states of nature (i) Which action is selected by the investor if he is a risk seeker? (2 Marks) (ii) Which criteria is selected by the minim ax regret criterion? (5 Marks)

UNIVERSITY EXAMINATIONS: 2018/2019 EXAMINATION FOR THE DEGREE OF BACHELOR OF BUSINESS INFORMATION TECHNOLOGY BUSS303 TECHNOLOGY AND INNOVATION MANAGEMENT FULL TIME/PART TIME/DISTANCE LEARNING DATE: DECEMBER, 2018 TIME: 2 HOURS INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions. QUESTION ONE (COMPULSORY) a) Explain FIVE areas where Entrepreneurship has been used for good and evil in Kenya [10 Marks] b) Define the following terms [2 Marks] i. Innovation ii. Technology c) Explain TWO stakeholders of Innovation [2 Marks] d) Explain FIVE incentives that the government may provide to innovators [10 Marks] e) Listed below are some of the sources of Innovations; Discuss what you understand by each. i. Process needs ii. Changes in demographics iii. Changes in perception iv. New knowledge [6 Marks] QUESTION TWO a) Define organizational development [2 Marks] b) Explain THREE main reasons evident to why people do resist change in organizations [6 Marks] c) There is variety of techniques that a manager and others in organization can use to reduce resistance to change. Discuss any TWO [4 Marks] d) The need for change in an organization can come from external or internal forces. Explain FOUR such factors found in Toyota Kenya Company [8 Marks] QUESTION THREE. a) What do you understand by the term idea diffusion [2 Marks] b) Discuss FOUR reasons why it is important for innovation to diffuse a move [8 Marks] c) Discuss FIVE ways in which technology and innovation can assist a company to achieve its major development plans. [10 Marks] QUESTION FOUR. a) Discuss with examples the following types of Innovations. i. Product Innovation ii. Process Innovation iii. Organizational innovation [6Marks] b) Brainstorming is one of the idea generation processes; explain FOUR guidelines to brainstorming process. [8 Marks] c) Discuss THREE forces that promote research and development in an organization [6Marks] QUESTION FIVE. a) Explain FIVE measures that a company can use to determine the effectiveness and appropriateness of an innovation. [10 Marks] b) Explain the following terms as Used in Innovation i) Copyright ii) Patent [4 Marks] c) Discuss THREE forces that promote research and development in an organization [6Marks]

UNIVERSITY EXAMINATIONS: 2018/2019 EXAMINATION FOR THE DEGREE OF BACHELOR OF BUSINESS INFORMATION TECHNOLOGY BUSS302 SUPPLY CHAIN MANAGEMENT FULL TIME/PART TIME/DISTANCE LEARNING DATE: DECEMBER, 2018 TIME: 2 HOURS INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions. QUESTION ONE a. Discuss the Supply Chain Management (SCM) citing observations that can be made arising from the definition of SCM. 15Marks b. Describe what the Development Chain entails. 10Marks c. Warehousing as part of Supply Chain can be built to accommodate different approaches. Give three main approaches used in warehousing. 5Marks QUESTION TWO a. Software developers have devised a host of solutions to handle specific supply chain tasks. Describe four types of software that are used in supply chain. 20Marks QUESTION THREE a. Companies in supply chain must make decisions individually and collectively regarding their actions. Discuss five areas in which these decisions are made. 15Marks b. In Implementation Procedure explain the Flexible Approach. 5Marks QUESTION FOUR a. Describe the Seven Principles of supply-chain management provided by Andersen Consulting as guidance. 15Marks b. Discuss the important characteristics of firms and service providers in Supply Chain operations. 5Marks QUESTION FIVE a. Describe the main participants in the Supply Chain Management. 20Marks

UNIVERSITY EXAMINATIONS: 2018/2019 EXAMINATION FOR THE DEGREE OF BACHELOR OF BUSINESS INFORMATION TECHNOLOGY BUSS209 BUSINESS LAW FULL TIME/PART TIME/DISTANCE LEARNING DATE: DECEMBER, 2018 TIME: 2 HOURS INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions. QUESTION ONE a) With reference to the nature and classification of law, differentiate between the following: i) Constitutional and administrative law. (2 Marks) ii) Civil burden of proof and criminal burden of proof. (3 Marks) iii) Statute law and judicial precedent. (2 Marks) b) Highlight five ways in which a contract might be discharged by operation of the law (5 Marks) c) Nemodat quod non habet has been incorporated into every contract under the Sale of Goods Act. It provides that a person can only acquire goods from the owner. Explain the circumstances under which this rule does not apply (exceptions to the Nemodat rule) (6 Marks) d) Explain the establishment, composition and jurisdiction of the High court of Kenya (6 Marks) e) Discuss the implied conditions and warranties in a contract of Hire Purchase (6 Marks) QUESTION TWO a) Identify the various orders or writs which the High Court may issue when exercising its supervisory jurisdiction. (4 Marks) b) Outline the extents to which common law differ from equity. (6 Marks) c) Describe the ways in which a corporation may be established. (4 Marks) d) Describe the various branches of civil law. (6 Marks) QUESTION THREE a) In relation to the Law of Agency, explain five circumstances under which an agent may be held personally liable to third parties. (10 Marks) b) In relation to the law of persons outline six consequences of incorporation. (6 Marks) c) Explain two ways in which independence of the judiciary is attained (4 Marks) QUESTION FOUR a) Name the courts that have jurisdiction to hear the following cases and give reasons for your answer i) The case in which Matata has been away room duty without the permission of his seniors. (3 Marks) ii) A divorce case involving Rahma and Rashid both who confess Islamic faith. (3Marks) iii) An appeal case by Jade who has been convicted by a Chief Magistrate’s court for committing a robbery with violence and sentenced to death. (3 Marks) iv) A challenge on President Maendeleo’s election by his opponent Bwana Siasa. (3 Marks) b) Describe the role of the three arms of government as envisaged in the doctrine of separation of powers (3 Marks) c) The High court has the jurisdiction to supervise subordinate courts and quasi judicial authorities. Explain the various writs used by the court to conduct its supervisory duties. (5 Marks) QUESTION FIVE Mamboleo, your powerful village chief respects you as an authority in legal aspects of governance having been the guest of honor when you graduated with ‘flying colours’ from Kenya University. His people have been frustrated with the formal court processes. Explain to him five Alternative Dispute Resolution methods and five advantages of the same. (20 Marks)