April 14, 2022

UNIVERSITY EXAMINATIONS: 2021/2022 COLLEGE OF TECHNOLOGY ORDINARY EXAMINATION FOR BUSINESS AND INFORMATION TECHNOLOGY BUSS 106: INTRODUCTION TO MACRO-ECONOMICS (PART- TIME/FULL TIME) DATE: DECEMBER 2021 TIME: 2 HOURS INSTRUCTIONS: ANSWER QUESTION ONE AND ANY OTHER TWO QUESTIONS. QUESTION ONE: I. Explain how the Monetary and fiscal policy measures can be applied to control inflationary pressure in a country (12Marks) II. Briefly explain the difference between Micro- Economics and Macro- Economics citing suitable examples in each case (4 Marks) III. With the aid of a diagram explain the relationship between Inflation and Unemployment as provided by the Philips Curve (4 Marks) (Total: 20 Marks) QUESTION TWO. a) ‘’Money is what money does’’. Explain this statement using suitable examples (8 Marks) b) Explain the meaning of the term bank crises clearly stating the possible causes and remedies of the banking crises. (7 Marks) (Total: 15 Marks) QUESTION THREE. a) ‘’The subject of emerging issues in financial institutions and markets in Kenya is a hot subject nowadays’ ’Identify and explain any four emerging issues that in financial institutions and markets in Kenya (8 Marks) b) Define the term unemployment and Identify and explain four causes of unemployment in Kenyan Context (7 Marks) (Total: 15 Marks) QUESTION FOUR. a) Outline four uses of the national income statistics in a country (8 Marks) b) Highlight any six indicators of economic growth and development in a country (12 Marks) (Total: 20 Marks)

UNIVERSITY EXAMINATIONS: 2021/2022 EXAMINATION FOR THE DEGREE OF BACHELOR OF BUSINESS IN INFORMATION TECHNOLOGY BUSS 106: COST ACCOUNTING FULL TIME/ PART TIME/ DISTANCE LEARNING DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: ANSWER ALL QUESTIONS QUESTION ONE a) Using examples, differentiate between the following terms: i. Sunk costs and standard costs ii. Controllable and uncontrollable costs iii. Direct and indirect costs 6 Marks b) A company manufactures two products, X and Y. The following costs have been estimated. Fixed costs for the period are expected to be sh 220,000 and it is expected that 5,000 units of product X and 2,000 units of product Y will be manufactured. Required: calculate the total expected costs for the unit. 9 Marks QUESTION TWO a) X ltd opening inventory on 1.4.2021 was 275 units at sh 3.2 per unit. During the month of April, the following issues and receipts were recorded. 8 th April: Received 600 units at sh 3 per unit 15th April: 400 units at sh 4 per unit 30th April: issued 925 units Required: calculate the total value of issues under LIFO and weighted average methods. 8 Marks b) An organizations cost function is known to be y=a+bx The total cost for an output level of sh 1000 units is sh 395,000. the total variable costs are sh 135,000. Calculate the fixed costs. 2 Marks C) the following unit costs are incurred in the production of 1,000 units of a product in a period. Sh 3.7 of the semi variable costs are fixed costs Required: what total cost would be incurred for the production of 1200 of the product in the period? 5 Marks QUESTION THREE a) Panda Ltd. Produces wheat flour. The following information relates to the quantity of wheat produced and the associated production cost over the ten-month period to 31 October 2020: Required: i. Using the linear regression method, formulate an equation of the form y = a + bx relating the number of bags produced and the total production cost. (10 Marks) ii. Using the high low method, formulate an equation of the form y = a + bx relating the number of bags produced and the total production cost. (6 Marks) iii. Using your equations in (i) and (ii) above, predict the total cost of producing 640 bags of wheat flour. (4 Marks) (Total 20 Marks)

UNIVERSITY EXAMINATIONS: 2021/2022 EXAMINATION FOR DEGREE OF BACHELOR OF BUSINESS AND INFROMATION TECHNOLOGY (TOWN CAMPUS) BUSS 104: INTRODUCTION TO MICRO ECONOMICS DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: Answer Question One and Any Other Two Questions QUESTION ONE (20 Marks) a) Discuss the key advantages of a command/centrally planned economy. (5 Marks) b) Explain the factors that limit consumer sovereignty in Kenya. (5 Marks) c) Discuss the key determinants of demand in Kenya. (5 Marks) d) Using a suitable diagram, discuss the concept of stable equilibrium. (5 Marks) QUESTION TWO (15 Marks) a) Explain the factors that influence the price elasticity of demand in practice. (7 Marks) b) By using suitable diagrams discuss the concept of price controls. (8 Marks) QUESTION THREE (15 Marks) a) Considering the Cardinalist’s approach to utility measurement and using a suitable diagram explain how a demand curve is derived. (7 Marks) b) Consumers are assumed to be rational so as to maximize utility. Discuss the assumptions of a rational consumer. (8 Marks) QUESTION FOUR (15 Marks) Write short explanatory note son the following topics a) Perfect competitors and monopoly. (3 Marks) b) Devaluation and depreciation of currency. (3 Marks) c) Marginal utility and marginal cost. (3 Marks) d) Price consumption curve and income consumption curve. (3 Marks) e) Engel curve and price decontrol. (3 Marks)

UNIVERSITY EXAMINATIONS: 2021/2022 EXAMINATION FOR BACHELOR OF BUSINESS IN INFORMATION TECHNOLOGY BUSS 100: INTRODUCTION TO ACCOUNTING 1 FULL/ PART TIME DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: Answer Question ONE and Any other TWO Questions QUESTION ONE (20 Marks) a) Briefly explain 3 Users of Accounting Information (6 Marks) b) By giving examples, briefly explain the following concepts i. Going Concern (2Marks) ii. Materiality (2Marks) iii. Accrual concept (2Marks) c) According to the statement of financial position of Zeddy Distributors, the firm has a debit balance at the bank of Kshs 3900 on 30th September 2018, however the bank statement obtained the same day shows a different balance An investigations into the difference shows the following information: i. On 27th September 2018 a cheque for Sh3480 was received from customer for s settlement of of an invoice for Shs 3600, an entry of Shs 3600 has not been made in the cash book. ii. A cheque paid for sales promotion on 20th September 2018 for 1680 has been entered in the cash book as 1860 iii. A standing order for insurance premium of Ksh 2600 had been made by the bank on 28th September 201 but no entry has been made in the cash book iv. Cheque for Ksh 22340 sent to creditors on 30th September 2018 were not paid by the bank until 3 rd October 2018 v. Cheques received from customers amounting to Ksh 45300 were paid into the bank on 30th September 2018 but were not credited by the bank until October 2018 Prepare I) Updated cashbook II) Bank reconciliation statement (8 Marks) (Total 20 Marks) QUESTION TWO The following details are from the books of James Bogonko for the month of March 2018 “1 Balances brought forward: Cash Sh .230; Bank Sh .4,756. “2 The following paid their accounts by cheque, in each case deducting 5 percent “3 Discounts: R Burton Sh 140; E Taylor Sh. 220; R Harris Sh 800. “ 4 Paid rent by cheque Sh.120. “ 6 J Cotton lent us Sh 1,000 paying by cheque. “ 8 We paid the following accounts by cheque in each case deducting a 21⁄2 per cent cash discount: N Black Sh 360; P Towers Sh 480; C Rowse Sh 300. “ 10 Paid motor expenses in cash Sh 44. “ 12 H Hankins pays his account of Sh. 77, by cheque Sh 74, deducting Sh 3 cash discount. “ 15 Paid wages in cash Sh. 160. “ 18 The following paid their accounts by cheque, in each case deducting 5 per cent cash discount: C Winston Sh 260; R Wilson & Son Sh 340; H Winter Sh 460. “ 21 Cash withdrawn from the bank Sh 350 for business use. “ 24 Cash Drawings Sh 120. “ 25 Paid T Briers his account of Sh 140, by cash Sh 133, having deducted Sh 7 cash discount. “ 29 Bought fixtures paying by cheque Sh 650. “ 31 Received commission by cheque Sh 88. REQUIRED a) Prepare a three column cashbook b) Balanced off, and the relevant discount accounts in general ledger (15 Marks ) QUESTION THREE Jamboree Katambi runs Wholesale business selling children clothing her trial balance for the year ended 30th September 2018 was as follows Additional information i. Inventories as at 30th September 2018 was valued at Sh 7000,000 ii. Allowance for doubtful debts is to be increased by 10% iii. Rent accrued as at 30th September 2018 amounts to Sh 525,000 iv. Electricity and Telephone bills prepaid as at September 2016 amount to Sh 175,000 and 525,000 respectively v. General Expenses accrued as at 30th September 2018 amounts to Sh 700,000 vi. Depreciation is provided on motor vehicle and furniture anf fittinfs at 15% per annum on straight line basis. REQUIRED a) Income Statement for the year ended 30th September 2018 b) Statement of Financial Position as at 30 September 2018 (15 Marks) QUESTION FOUR Cain and Abel are partners in the business of selling motor vehicle spare parts and accessories. The trial balance given below was extracted from the books of the partnership on 30th June Abel was the general manager of the firm and was earning a salary of Sh 31250 per month. This salary has not been included in the accounts. He brought in capital of Sh 200000 in cash and was thereafter entitled to one-fifth of the firm’s profits. The partnership agreement provides for interest to be charged on drawings made after the commencing of partnership at the rate of 10% per annum. The following additional information is provided: 1. The sales including returns of Sh 96000 whereas there were no purchase returns of the period 2. Depreciation is to be provided on written down value of the building at 5% per annum and on furniture at 20%per annum. Although the cost of the land on 30th June 2020 was Sh 700,000 no depreciation is to be provided. 3. A debt of Sh 20,000 is to be written off, and the provision for bad and doubtful debts is to be maintained at 5% of the remaining debtors. 4. The drawings by Aloo after the formation of the partnership are Sh 200,000 made on 1st April 2020. 5. Insurance paid in advance and rates outstanding at 30th June 2018 are Sh 5,000 and Sh 10,000 respectively 6. Stock in trade was Sh 1,350,000 at 30th June 2020 Required: 1) Statement of comprehensive income for the year ended 30th June 2020, 2) Statement of financial position as at 30th June 2020 (15 Marks)

UNIVERSITY EXAMINATIONS: 2021/2022 EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN SOFTWARE DEVELOPMENT/ BUSINESS INFORMATION TECHNOLOGY BSD 2108/ BBIT 207: SYSTEM DEVELOPMENT METHODOLOGY FULL TIME/ PART TIME/ DISTANCE LEARNING DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: ANSWER QUESTION ONE AND ANY OTHER TWO QUESTIONS QUESTION ONE (20 Marks) a) A company has over the years used software development methods that rely on documented specifications and designs. Agile methods are being considered seriously in the pursuit of growth and internationalization of the business. i. Explains the agile principles for rapid software development and justify its appropriateness as a method for adoption. (5 Marks) ii. Discuss the view that modern life cycle models with their emphasis on prototyping, create systems that are often fragmented and difficult to integrate; of unsatisfactory reliability, performance, and functionality; and of limited longevity. (5 Marks) b) An IT organisation has decided to introduce a new system development method for use in various projects. Identify possible problems and risks which may affect the introduction of the new method and the measures that could be adopted to avoid these problems and risks. (5 Marks) c) A newly-established online training company was interested in creating a website to allow students to enrol on their training programmes over the Internet. What should the company consider when deciding on whether to invest in a custom, packaged or outsourced system solution? ( 5 Marks) QUESTION TWO (15 Marks) a) You are in charge of five software development projects. The project characteristics of each of the sys are as follows: • Project 1. Web-site for a local company. Relatively small system. Requirements are vague and likely to change in the near future. • Project 2. A very large embedded system whose requirements can be easily identified and are relatively stable. • Project 3. A ‘standard’ business application. You have developed similar systems in the past. • Project 4. A relatively complex administrative system for one of the local hospitals. Some of the requirements seem to be pretty vague, but all the requirements are stable. • Project 5. A small real-time control system to be used for monitoring patients in a local hospital. Consider the following software development approaches/models: waterfall, throw-away prototyping, evolutionary prototyping, component-based development, formal development. Which of the above approaches/models would you choose for each of your projects? Justify your choices by discussing advantages, disadvantages and when to use. (15 Marks) QUESTION THREE (15 Marks) a) A College was interested in creating a website to allow students to enrol on their training programmes over the Internet. What should the company consider when deciding on whether to invest in a custom, packaged or outsourced system solution? (10 Marks) b) Systems analysts need to communicate and interact extensively with users. However the “vocabulary” of systems development is often not familiar to users and the organisational backgrounds and experience of systems analysts may be very different from those of users. What problems might this cause during the requirements definition phase in particular, and how might they be overcome? (5 Marks) QUESTION FOUR (15 Marks) a) Poor user interface design is the reason why so many software systems are never used. State and explain four human factors that you would take into consideration when designing a user interface. (5 Marks) b) An irrigation software system has a module that reads environmental factors (temperature(T) and humidity in the air (HA) and the humidity in the soil (HS). If HS is less than x and HS is less than y and the temperature is between t1 and t2, then the software system will switch on the sprinklers otherwise for the same conditionals of HA and HS, if temperature is below t1 the software system will switch on the flood watering systems. After analyzing the given scenario, construct a flow chart diagram for the system. Ensure that your diagram has the smallest number of items possible. (10 Marks)

UNIVERSITY EXAMINATIONS: 2020/2021 EXAMINATION FOR THE DEGREES OF BACHELOR OF SCIENCE IN APPLIED COMPUTING/ BACHELOR OF SOFTWARE DEVELOPEMNT BAC 2301/BSD 3206: ADVANCED SOFTWARE ENGINEERING FULLTIME/ PART TIME/DISTANCE LEARNING DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: QUESTION ONE IS COMPULSORY, CHOOSE TWO OTHER QUESTIONS QUESTION ONE (20 Marks) Compulsory a). A software company would like to adopt a new software process improvement framework to enhance the quality of their software, reduce costs and accelerate their development processes. Discuss the various process improvement frameworks available that can help the company quality and productivity objectives. (8 Marks) b). For EACH of the following software development approaches, provide an overview of the approach and explain to which development situations the approach is most suited. (6 Marks) • Prototyping • Software reuse • Design patterns ii) A company wishes to develop a safety-critical patient monitoring system for a hospital. Discuss the benefits and potential problems of combining the above approaches in the development and delivery of such a system. (6 Marks) QUESTION TWO (15 Marks) a) Zave defines Requirements Engineering as “the branch of software engineering concerned with the real-world goals for, functions of, and constraints on software systems [and] the relationship of these factors to precise specifications of software behavior, and to their evolution over time and across software families”. Why is Requirements Engineering considered to be the most important part of software engineering? (4 Marks) b) Structured Analysis proceeds by modelling the current physical system, abstracting a model of the current logical system, and then modelling the new logical system. What are the advantages and disadvantages of building these three separate models? What representations are used for each of these models? (4 Marks) c) Explain why each of the following is an important property of a software specification, and explain how it can be achieved when writing specifications: i) validity; ii) traceability; iii) verifiability. (3 Marks) d) Project managers sometimes regard work put into writing high quality specifications as “gold plating”, and claim that it is unnecessary as it doesn’t contribute to producing program code. Under what circumstances is this view sensible, and under what circumstances is it foolish? (4 Marks) QESTION THREE (15 Marks) Below is the draft specification for a proposed software system: “A program is required to run the controller of a burglar alarm system. A typical system consists of a number of sensors connected by individual circuits to a central control box containing the controller. The control box has a simple keypad and display. Sensors include switches, heat detectors and motion detectors. Each sensor has an identification code which can be read by the controller to identify the sensor. The controller allows an operator to select which sensors are active and turn on or off the system. If a sensor is triggered when the system is active, the controller must activate the alarms (a siren and a bell) and display a message on the display panel indicating which sensor is involved. The operator must enter a security code before the system is turned on or off.” a) Create a detailed UML class diagram for the alarm program. Make sure each class is labelled with any key attributes or operations. (7 Marks) b) Create UML sequence diagrams to show how the program responds to an alarm being triggered, and how the operator can turn the system off. (8 Marks) QUESTION FOUR (15 Marks) A bank’s Managing Director has looked at the IT department’s accounts and noted that 80% of its money is spent maintaining existing software, and only 20% is spent developing new software. He thinks this is a waste of money and wants to do something about it! a) Describe three types of software maintenance that the bank’s money is likely to be spent on. (3 Marks) b) Discuss whether the Managing Director is correct to think that each of these types of maintenance is a waste of money. (3 Marks) c) Discuss the main problems faced by a maintenance engineer. (6 Marks) d) It is noted that the bank’s software is somewhat unreliable. Discuss what this means in software engineering terms. (3 Marks)

UNIVERSITY EXAMINATIONS: 2020/2021 EXAMINATION FOR THE DEGREES OF BACHELOR OF SCIENCE IN APPLIED COMPUTING BAC 2208: DIGITAL PHOTOGRAPHY & VIDEO EDITING FULLTIME/ PART TIME/DISTANCE LEARNING DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: QUESTION ONE IS COMPULSORY, CHOOSE TWO OTHER QUESTIONS QUESTION ONE (20 Marks) Compulsory a). State Nyquist sampling theorem [2Marks] b) Most high resolution computer monitors are not based on TV picture tubes. What is the amount of memory that is required to store an image given a display size of 1280 X 1024? Derive the time to transmit the image assuming bit rate of 56 kbps. [4Marks] c). What is the relevance of lens in a camera ? [2Marks] d) Using Lempel Ziv coding compress the following text” DADSFDASGAASDFSADSDF (7 Marks) e) With a colour depth of 8 bits calculate the number of colours that can be displayed (2 Marks) f) Explain the distinct steps in digitising sound (3 Marks) QUESTION TWO (15 Marks) a) Define Digital Photography (2 Marks). b) Explain the THREE steps in a video production project (9 Marks) c) Describe rendering as used in video editing (4 Marks) QUESTION THREE (15 Marks) a) State the FOUR similarities of a human eye and a camera (4 Marks) b) State the FOUR differences of a human eye and a camera (4 Marks) c) Highlight two functions of aperture. (2 Marks) d) Name three types of camera and outline their uses. (3 Marks) e) Explain pixelating in relation to the resolution (2 Marks) QUESTION FOUR (15 Marks) a) Explain functions of the following: i) Exposure ii) Shutter-Speed iii) Aperture (6 Marks) b) The website is to contain multimedia elements such as video. i) Describe one benefit of including video in the website. (2 Marks) ii) Describe one technical implication for the customer of including video in the website. (3 Marks) b) State the FOUR benefits of including sound in a video production (4 Marks)

UNIVERSITY EXAMINATIONS: 2021/2022 EXAMINATION FOR THE DEGREES OF BACHELOR OF SCIENCE IN APPLIED COMPUTING BAC 2207: PROFESSIONAL WRITING FULLTIME/ PART TIME/DISTANCE LEARNING DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: QUESTION ONE IS COMPULSORY, CHOOSE TWO OTHER QUESTIONS QUESTION ONE (20 marks) Compulsory a) Explain two principal components to citing references (4 Marks) b) Explain the term plagiarism and why it is not condoned in academia. (4 Marks) c) Highlight the things you need to avoid in discussion in scientific writing (4 Marks) d) Explain assessment irregularities you must avoid when writing a research paper (4 Marks) e) Explain the purpose of discussion in scientific writing (4 Marks) QUESTION TWO (15 marks) 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. (3 Marks) QESTION THREE (15 marks) a) Discuss the four stages involved in writing an academic piece of work. (8 Marks) b) Briefly explain four parts of a proposal (7 Marks) QUESTION FOUR (15 marks) a) Define and identify the purpose of writing. (5 Marks) 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 3rd 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: 2020/2021 EXAMINATION FOR THE DEGREES OF BACHELOR OF SCIENCE IN INFORMATION TECHNOOGY/ APPLIED COMPUTING/ SOFTWARE DEV/ INFO. SECURITY AND FORENSICS BIT 1102/ BAC 1107/ BSD 1107/ BISF 1105: INTERNET TECHNOLOGY AND THE WEB/ INTERNET TECHNOLOGY FULLTIME/ PART TIME/DISTANCE LEARNING DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: Question ONE IS COMPULSORY, Choose TWO OTHER Questions. QUESTION ONE (20 marks) Compulsory a) What is an IP address? (2 Marks) b) Every IP address is made up of two parts the Prefix and the suffix. Describe the two parts highlighting their importance (4 Marks) c) Describe the difference between IPV4 and IPV6 (6 Marks) d) Describe the term Internet Service Provider and name two ISPs in Kenya (4 Marks) e) Convert the following 32-bit binary IP address into decimal notation (4 Marks) 10000001 00110100 00000110 00000000 QUESTION TW0 (15 marks) a) Explain what you understand the term “client-server computing”. (2 Marks) b) With the help of a diagram discuss the four-layer Internet Model (4 Marks) c) Describe the following terms (4 Marks) i) Domain Name ii) Uniform Resource Locator (URL) d) Describe the parts of the following URL given below. (3 Marks) http://www.azimuth-interactive.com/flash_test e) Explain the term “Internet of things”. (2 Marks) QESTION THREE (15 marks) a). Internet access is the ability of individuals and organizations to connect to the Internet using computers and other devices. There are many ways a computer or a terminal can connect to the internet. From this background, compare the following Internet connection types i) DSL and ISDN ii) Cable connection and leased line (8 Marks) b). How does the Dynamic host configuration protocol give the IP addresses? (4 Marks) c). Discus three uses and three dangers of the Internet (3 Marks) QUESTION FOUR (15 marks) a) Describe the following protocols available in the OSI application layer highlighting their functions. (4 Marks) i) HTTP ii) SMTP iii) Telnet iv) FTP b) Explain what the following HTML lines mean and their output (8 Marks) <!DOCTYPE html> <html> <head> <title>Page Title</title> </head> <body> <h1>My First Heading</h1> <p>My first paragraph.</p> </body> </html> c) Explain the role of ICANN (3 Marks)

UNIVERSITY EXAMINATIONS: 2020/2021 EXAMINATION FOR THE DEGREES OF BACHELOR OF SCIENCE IN APPLIED COMPUTING/ BISF/ BSSD BAC 1105: INSTALLATION AND CUSTOMIZATION FULLTIME/ PARTTIME DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: QUESTION ONE IS COMPULSORY, CHOOSE TWO OTHER QUESTIONS QUESTION ONE (20 Marks) Compulsory a. Describe the following terms 3 Marks i. BIOS ii. POST iii. BOOT Order b. With the use of an illustration (Diagram Preferred) outline the structure of a computer’s secondary storage. Hint(Where the read heads go) 4 Marks c. List any three Operating System Utilities 3 Marks d. For the listed above describe the functions they perform in an PC 3 Marks e. Name two types of User Interfaces provided by the Operating System 2 Marks f. Suppose you have been asked to perform a re-install of all the computers in the labs in KCA in preparation for a new semester. Kindly advise your team on how to get this done task assuming that you have computers capable of running windows 10. 5 Marks QUESTION TW0 (15 Marks) a. Name three different Kinds of Operating Systems. 3 Marks b. Name the operation that is done by an operating system on secondary storage media so that we can save files to it 1 Mark c. Name any three filing systems used by operating systems 3 Marks d. State two ways one can partition a Hard Disk 2 Marks e. What is the difference between backup and storing files on an external drive? 2 Marks f. Explain the term form factor 2 Marks g. Describe how the boot process works starting from powering a machine 5 Marks h. Name any two ports that are initialized by an operating system 2 Marks QESTION THREE (15 Marks) a. State any three safety precautions one would take before installing 3rd party software 3 Marks b. Julian saw the message “No Bootable Disc found “Explain what could be the cause of such an error 3 Marks c. Suggest a solution to this type of an error. 1 Mark d. Distinguish between UEFI and Legacy mode of the BIOS 4 Marks e. State and explain any four types of expansion slots 4 Marks QUESTION FOUR (15 Marks) a. Differentiate between Baby AT and ATX form factors 4 Marks b. State the preparation one will undertake in preparation to install a windows 10 Operating system. c. Define the following computer risks 3 Marks i. Malware ii. Spyware iii. Virus d. Foor each of these, discuss an appropriate utility that will help a computer user get rid of these. 3 Marks e. List and explain five functions of an Operating System 5 Marks

UNIVERSITY EXAMINATIONS: 2020/2021 EXAMINATION FOR THE DEGREES OF BACHELOR OF SCIENCE IN APPLIED COMPUTING BSD 1101: COMPUTER ORGANIZATION AND APPLICATIONS FULLTIME/ PART TIME/DISTANCE LEARNING DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: QUESTION ONE IS COMPULSORY, CHOOSE TWO OTHER QUESTIONS QUESTION ONE (20 Marks) Compulsory a) Describe the third generation of computers giving the features and examples [5Marks] b) Differentiate between toggle case and sentence case menu options as used in word processing programs. [2Marks] c) Discuss the possible faults in a computer system [4Marks] d) Differentiate the following terms i. Control bus and Datas bus. [2Marks] ii. ROM and RAM [2Marks] e) Discuss functional areas of primary storage. [6Marks] f) Explain the following abbreviations [3 Marks] i. BIOS ii. CU iii. DRAM g) Outline the characteristics of Graphical user interface(GUI) [2Marks] h) Differentiate between Workbook and Worksheet as used in spreadsheet program [2Marks] i) Define spreadsheet citing an examples of electronic Spreadsheet Applications [2Marks] QUESTION TWO (15 Marks) a) Define Multimedia and examine the components of Multimedia [7Marks] b) Discuss 2 types of files used in an organization [4Marks] c) Discuss the advantages of upgrading computer hardware [4Marks] QUESTION THREE (15 Marks) a) Explain two disadvantages of Assembly languages [4Marks] b) Define Operating system and discuss its functions [5Marks] c) Define Mail merge as used in Microsoft word and state documents which can be merged [2Marks] d) Convert the following [4Marks] i. 4810 to Octal ii. A24E16 to Decimal QUESTION FOUR (15 Marks) a) Discuss the advantages of preventive maintenance [6Marks] b) Describe the components of the computer motherboard [3 Marks] c) Explain three types of Cache memory [6Marks]

UNIVERSITY EXAMINATIONS: 2021/2022 EXAMINATIONS FOR THE DEGREE OF BACHELOR OF SCIENCE IN INFORMATION SECURITY AND FORENSICS/ BACHELOR OF SCIENCE IN APPLIED COMPUTING BISF 3206/BAC 3218: WIRELESS AND MOBILE FORENSICS FULL TIME/PART TIME DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: Answer QUESTION ONE AND ANY OTHER TWO questions. QUESTION ONE – COMPULSORY [20 MARKS] a) Using a table, make a comparison between WEP, WPA and WPA2 in terms of encryption algorithm, IV size, key management and encryption key length. 6 Marks b) Discuss in detail the anatomy of a mobile attack. 6 Marks c) What should you do before you conduct a mobile device investigation? 4 Marks d) Discuss the mobile forensics process. 4 Marks. QUESTION TWO [15 MARKS] a) Discuss any four factors that might affect a mobile device during transportation. 4 Marks b) Explain the procedure for bypassing the iPhone passcode using IEplorer in a jailbroken device. 5 Marks c) Discuss in detail the mobile data acquisition methods. 6 Marks QUESTION THREE [15 MARKS] a) (i) What does Mobile Forensics involve? 2 Marks (ii) What are the Mobile Forensics challenges? 4 Marks b) Outline the procedure for documenting the crime scene and preserving evidence. 6 Marks c) How do you acquire data from an unobstructed mobile device? 3 Marks QUESTION FOUR [15 MARKS] a) Discuss the methodologies used to detect wireless connections. 6 Marks b) Describe the steps followed in discovering Wi-Fi networks using Wardriving. 6 Marks c) State any three features of a good wireless forensics tool. 3 Marks