April 16, 2022

UNIVERSITY EXAMINATIONS: 2021/2022 ORDINARY EXAMINATION FOR BACHELOR OFSCIENCE INFORMATION TECHNOLOGY, BSc. APPLIED COMPUTING, BSD, BISF BIT 1206/ BAC 1201/ BISF 1101/ BSD 1202: DISCRETE MATHEMATICS (PARTTIME/ DISTANCE LEARNING) DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: Answer Question One and Any Other Two questions QUESTION ONE (a)Use the laws of algebra of sets to simplify [5Marks] (b)Prove : if 𝐴 is a subset of the null set 𝜙 ,then 𝐴 = 𝜙. [5Marks] (c)Let 𝑆 be a subset of 𝐴 and let ⅈ: 𝑆 ↦ 𝐴 be an iclusion map .Show that the inclusion map is one-to-one. [5Marks] (d)Find the largest interval 𝐷 on which the formulae 𝑓(𝑥) = 𝑥 2 defines a one to one function. [5Marks] QUESTION TWO (a)Find a traversable trail 𝛼 for the graph 𝐺 where𝑉(𝐺) = {𝐴, 𝐵, 𝐶,𝐷} and 𝐸(𝐺) = [{𝐴, 𝐶},{𝐴,𝐷},{𝐵, 𝐶},{𝐵,𝐷},{𝐶,𝐷}] . [5Marks] (b)Draw the multigraph 𝐺 whose adjacency matrix is [10Marks] QUESTION THREE (a)Determine the number of loops and multiple edges in a multigraph 𝐺 from its adjacency matrix [5Marks] (b)Let 𝐺 be a graph with 𝑚 vertices. Describe two major drawbacks in the computer storage of 𝐺 as its adjacency matrix 𝐴. [10Marks] QUESTION FOUR (a)Prove:There is a path from a vertex 𝑢 to a vertex 𝑣 if and only if there is a simple path from 𝑢 to 𝑣. [5Marks] (b)Consider the statement “if Oscar eats Chinese food,then he drinks milk”. (i)Write the converse of the statement. [2Marks] (ii)Write the contrapositive of the statement. [2Marks] (c) Consider the function 𝑓:{1,2,3,4} ↦ {1,2,3,4} given by (i) Find 𝑓(1) [1Mark] (ii) Find an element 𝑛 in the domain such that 𝑓(𝑛) = 1 [1Mark] (iii) Find an element 𝑛 of the domain such that 𝑓(𝑛) = 𝑛 [1Mark] (iv) Find an element of the condomain that is not in the range [1Mark] (d)Consider the function 𝑓: ℤ ↦ ℤ given by 𝑓(𝑛) = { 𝑛 + 1: 𝑛 ⋅ 𝑒𝑣𝑒𝑛 𝑛 − 3: 𝑛 ⋅ 𝑜 ⅆⅆ (i)Is 𝑓 injective?Prove your answer [1Mark] (ii)Is 𝑓 surjective?Prove your answer [1Mark]

UNIVERSITY EXAMINATIONS: 2020/2021 EXAMINATION FOR THE DEGREES OF BACHELOR OF SCIENCE IN APPLIED COMPUTING/ BACHELOR OF BUSINESS INFORMATION TECHNOLOGY/BACHELOR OF INFORMATION SECURITYAND FORENSICS/BACHELOR OF SCIENCE IN INFORMATION TECHNOLOGY/BACHELOR OF SOFTWARE DEVELOPMENT BIT 1205/BISF/BAC 1205/BSD 1201/BBIT 104: SYSTEM ANALYSIS AND DESIGN 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 SYSTEM FOR ROOM BOOKING IN LAX HOTEL: The project addresses the information required by LAX hotel to book rooms and clears the bills of customers. The hotel has decided to computerize room booking and customer checkout formalities. The hotel has various types of rooms. It wants to allow booking online through the internet besides normal booking by phone, letter and also spot booking on arrival of the customer. The hotel management is willing to invest in a PC with internet connection. It is also willing to train the staff at the reception desk to handle computerized booking. It is unwilling to invest in a local network in the hotel, which would allow on-line updating of customer charges. Customer bills are sent from restaurant, laundry etc to the reception desk accountant for manual updating of accounts. Since the hotel is small with only 177 rooms, this is feasible. Use your knowledge of Analysis and design of Information Systems to answer the following questions. a) As the Systems Analyst on this project, why would it be necessary to conduct a feasibility analysis? [1 Mark] b) Briefly describe the major components of the Terms of Reference (TOR) document you would share with the management of LAX hotel as you plan for implementation. [5 Marks] c) Which 3 key persons at the hotel would be relevant respondents during requirements elicitation and why? [3 Marks] d) Identify 2 requirements you would consider as functional for the booking system. [2 Marks] e) At the design phase, write down any two key objectives that would guide your choice of system design? [2 Marks] f) How would an Entity Relationship Diagram help to represent business rules for the system in operation? [2 Marks] g) Describe any three approaches you would have to choose from, for a conversion strategy to aid the transition to the automated hotel booking system for LAX? [3 Marks] h) Why would it be important for the development team to conduct system testing? [1 Marks] i) Give any 2 reasons as to why maintenance of the booking system would be necessary. [1 Marks] QUESTION TW0 (15 marks) a) Describe the various stakeholders in a Payroll System. [6 Marks] b) Describe the three structured methodologies in a systems analysis and design [6 Marks] c) State and explain the four feasibility studies undertaken before undertaking the development of an information system. [8 Marks] QESTION THREE (15 marks) Assume that a new Mololine Bus Company has approached you for computerizing their bus reservation system for various destinations originating from the City center. The Company currently has about 1000 buses spread over 60 routes operating from the city center to various places. Of them, 700 are regular, 200 are semi-luxury, and the remaining are super deluxe buses. The seating capacity is 48, 42 and 36, respectively. The Company would like to have at least one week advance reservation. The passenger details required for the reservation are: be date of journey, starting point, destination, number of seats (half or full), concession required if any, route number and departure time of the service. If seats are available, your system should be able to provide enquiry services in a variety of ways to help the passenger make a decision. a) What would be your role as the Systems Analyst assigned on this project? [5 Marks] b) As a system analyst, advise the Mololine Bus Company on the approach you would adopt to implement a successful system. [5 Marks] c) How would identification of the boundary of the bus reservation system help the: i) System Analyst [1 Mark] ii) System Designer [1 Mark] iii) System Developer. [1 Mark] d) What would be the purpose of carrying out the following tasks for the development of the bus reservation system? i) Preliminary Investigation [1 Marks] ii) Technical feasibility [1 Marks] QUESTION FOUR (15 marks) a) When a customer places an order, the order is fast verified, then appropriate stock levels are established. In certain cases the customer is notified of inadequate stocks other the necessary stock adjustments are made then a delivery note is generated to accompany the goods when dispatched to the customer. A copy of the delivery note is given to the accounts department to generate an invoice which is also given to the customer. On receiving the goods the customer makes payments which automatically adjusts the outstanding debt. Required i) Explain FOUR components of dataflow flow diagram. (4 Marks) ii) Draw a Level 1 Logical DFD. (11 Marks)

UNIVERSITY EXAMINATIONS: 2020/2021 EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN INFORMATION TECHNOLOGY/ BUSINESS I.T/APPLIED COMPUTING/ SOFTWARE DEVELOPMENT/ INFO. SECURITY AND FORENSICS BIT 1203// BBIT 1203/BAC 1204/BSD 1204/BISF 1204: WEB DESIGN & DEVELOPMENT / FUNDAMENTALS OF WEB DESIGN FULL TIME/ PART TIME/ DISTANCE LEARNING ORDINARY EXAMINATION DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: Answer Question One (COMPLUSORY) & ANY OTHER TWO questions. QUESTION ONE (20 MARKS) – COMPLUSORY a). With the use of codes, describe the purpose of the following as used in forms i). Radio Buttons (3 marks) ii). Check Boxes (3 marks) (b) COMPUTER COMPONENTS OUTLINED a). HARDWARE i). INPUT ii). OUTPUT 1. VDU 2. PRINTER iii). CPU 1. ALU 2. CU 3. MMU b). SOFTWARE i). OPERATING SYSTEM ii). APPLICATION c). USERS i). PEOPLE ii). OTHER COMPUTERS (6 marks) (b) State the difference between the following terms as used in HTML (4 marks) (i) A tag and HREF tag (ii) FRAMESET tag and FRAME tag (c) State and explain the attributes associated with rows and cells as used with the <Table> tag. (4 marks) QUESTION TWO (15marks) a). Describe four attributes of the form element (8 Marks) b). Write HTML code to generate the following table (7 Marks) c). Write HTML code that will link two web pages using an image (4 Marks) QUESTION THREE (15marks) a). Explain the function of the following servers i). Printer server ii). Proxy server iii). Application server (6 Marks) b). Explain how one would insert the following in HTML page give the tags involved, its attributes and the code i). Inserting an image ii). Inserting horizontal line iii). Alternating Scrolling text on the screen (9 Marks) QUESTION FOUR (15 marks) a). Write HTML code to divide a page into frames as illustrated in the diagram below (8 Marks) b). Write a code that inserts a background image on to your web page. (4marks) c). Explain the function of the following tags and write a HTML code to illustrate their usage. (3marks) i). <DL> ii). <DD> iii). <DT>

UNIVERSITY EXAMINATIONS: 2020/2021 ORDINARY EXAMINATION FOR BSc. IT, BBIT, BAC, BSD, BISF BIT 1110, BCU 102, BAC 1103, BSD 1102, BISF 1102: MATHEMATICS FOR SCIENCE, FOUNDATION OF MATHS, COMPUTING MATHS (DAY/PARTTIME/DISTANCE LEARNING) DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: Answer Question One And Any Other Two Questions QUESTION ONE (a)Prove that,if one root of the equation 𝑎𝑥 . [4 Marks] QUESTION TWO a) State remainder and factor theorem (2 Marks) b) When QUESTION THREE (a)Prove the following identity sin𝐵−sin 𝐶 QUESTION FOUR (a) A geometric series has first term 25 and common ratio 3/5. Given that the sum of k terms of the series is greater than 61 (i)Show that 𝒌 > correct to 4 decimal place. (5 Marks) (c) In how many ways can a customer at the super market select 3 different types of soda from 30 available types, and 10 different packets of biscuits from 12 different available packets? [3Marks]

UNIVERSITY EXAMINATIONS: 2020/2021 EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN INFORMATION TECHNOLOGY/ BUSINESS I.T/ APPLIED COMPUTING/ SOFTWARE DEV/ INFOR. SECURITY & FORENSCIS BIT 1106 A / BAC 1102/ BBIT 111/ BSD 1104/ BISF 1102: OPERATING SYSTEMS FULL TIME/PART TIME/DISTANCE LEARNING ORDINARY EXAMINATION DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions. QUESTION ONE [20 Marks] – COMPULSORY a) Briefly explain the three types of schedulers. (3 Marks) b) List 4 examples of the common operating systems today (4 Marks) c) Using a diagram clearly explain a five state process (5 Marks) d) Distinguish preemptive and non–preemptive scheduling techniques. (4 Marks) e) Using a diagram explain the concept of an operating system acting as the bridge between the computer hardware and software (4 MARKS) QUESTION TWO [15 MARKS] a) Clearly explain any five functions of an operating system (5 MARKS) b) Distinguish between the following terms as applied in operating systems: (6 Marks) i). Multiprocessing & multi-programming ii). Graphical user interface & command driven interface iii). Response time & turnaround time c) Explain the term “deadlock” as used in operating systems (2 Marks) d) Outline two ways of dealing with a deadlocked condition (2 Marks) QUESTION THREE [15 MARKS] (a) Explain the following types of operating systems: – (6 Marks) i). Batch operating system ii). Real time operating systems iii). Network operating systems (NOS) (b) State and explain any three processing scheduling algorithms (6 Marks) (c) Define a deadlock (1 Mark) (d) State and explain two ways of avoiding deadlock (2 Marks) QUESTION FOUR [15 MARKS] a) Explain three file management activities supported by an operating system (3 Marks) b) Describe three advantages of threads over processes. (3 Marks) c) State and explain 3 basic function of input and output management (3 Marks) d) Explain the following memory management requirements:- (2 Marks) i). Protection ii). Sharing e) With the aid of a diagram, outline the typical modules of an I/O manager (4 Marks)

UNIVERSITY EXAMINATIONS: 2020/2021 EXAMINATION FOR THE DEGREES OF BACHELOR OF SCIENCE IN INFORMATION TECHNOLOGY/BACHELOR OF BUSINESS INFORMATON TECHNOLOGY BACHELOR OF SCIENCE IN SOFTWARE DEVELOPMENT/BACHELOR OF SCIENCE IN INFORMATION SECURITY AND FORENSICS BIT 01105/BBIT 01105/BSD 1103/BISF 1105: COMPUTER APPLICATIONS FULLTIME/ PART TIME/DISTANCE LEARNING DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: ANSWER QUESTION ONE( COMPULSORY)AND ANY OTHER TWO QUESTION ONE (20 marks) a) Below is an extract from a spreadsheet program. Using cell addresses only, write a formula that would be used to compute: i. VAT for Rice (2 Marks) ii. Total cost for sugar (2 Marks) Total VAT for all items (2Marks) b) By giving an example in each case, explain each of the following types of computer software: i. Application software ii. System software iii. Programming software (3 marks) c) XYZ company has been advised by the IT manager to purchase a tailor made software. Give FIVE reasons that could have necessitated such a move. (6 Marks) d) Identify the various components of each of the following email address, explain the function of each (3 Marks) kmutua@kca.ac.ke c) Oliver has bought a computer with the following software: Word Processing and Spreadsheets, With examples explain the purpose of each module. (2 Marks) QUESTION TWO (15 marks) a) Differentiate between DOS and Windows operating system. (4 Marks) b) Apart from being reasonably descriptive, there are a few rules governing the choice of a filename: explain THREE rules governing file names. (3 Marks) 9. Explain the following functions as used in Microsoft Excel. Give examples of each (i) TODAY() (2 Marks) (ii) SUMIF (2 Marks) (iii) COUNTIF (2 Marks) (iv) COUNTA (2 Marks) QUESTION THREE (15 marks) a) Explain the following cell addressing methods as used in Microsoft Excel (i) Mixed cell addressing method (1 Mark) (ii) Absolute cell addressing method (1 Mark) (iii) Relative cell addressing method (1 Mark) (iv) 3-D cell addressing method (1 Mark) b) What is PowerPoint? (2 Marks) c) Discuss the following features in PowerPoint presentations: i. Animation ii. Transition (2 Marks) d) Give the function of each of the following keyboard keys: (4 Marks) i. END ii. ESC iii. DELETE iv. Backspace e) List THREE tab settings found in a word processing package. (3 Marks) QUESTION THREE (15 marks) a) The ICT manager at KCA University purchased a computer with the following specifications: ➢ Pentium IV 2.2 Ghz duocore ➢ 4 GB RAM ➢ 500 GB HDD Explain the meaning of each of the above specifications. (3 Marks) b) A software engineer requires a range of software utilities. Explain the usefulness of any FIVE such utilities. (5 Marks) c) Explain five input devices the student can use to play games. (5 Marks) f) Explain the function of the following features/tools found in word processing software i) Hyphenation ii) Hyperlink iii) Drop Cap iv) Mailings (2Marks) QUESTION FOUR (15 marks) a) Distinguish between the following word features: i. Header and footer (2 Marks) ii. End-notes and footnotes (2 Marks) iii. Indentation and alignment (2 Marks) b) An employee was trying to open an email but had forgotten the password. Outline the process of regaining access to the email. (3 Marks) c) Write formulas for the operations (i) – (iv) based on the spreadsheet given below along with the relevant cell address: i. To calculate the Total Marks as sum of Science, Maths & Computers for each student and display them in column F. (2Mark) ii. To calculate the average marks for each student and display them in column G (1 Mark) iii. To calculate the highest marks in Computers and display it in cell E7 (1Mark) iv. To calculate the total number of students appearing for the Science test and display it in cell C8. (2Marks)

UNIVERSITY EXAMINATIONS: 2021/ 2022 EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN INFORMATION TECHNOLOGY/ BUSINESS INFORMATION TECHNOLOGY/ APPLIED COMPUTING/ SOFTWARE DEVELOPMENT/ INFORMATION SECURITY & FORENSCIS BIT 1104/ KCA 003/ BAC 1104/ BCU 100: BUSINESS COMMUNICATION SKILLS 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) Employers and employees value communication ability more than any other ability, even more than specialized technical skills. Discuss the relevance of this statement and demonstrate the significance of effective communication in an organization. (12Marks) b) Describe three benefits of using visual aids in an oral presentation. (6Marks) c) What is the most striking thing that you have learnt in this unit? (2Marks) QUESTION TWO. (15MARKS) a) Your communication lecturer gave a cat for Business Communication Skills while you were away. Write a letter to the lecturer requesting for a make- up cat. (10Marks) b) “Even is silence, we communicate”. Explain a situation when you used silence to communicate. (5Marks) QUESTION THREE (15MARKS) a) KCA university has a program for engaging the best students after the graduation. Imagine you are selected to attend the interview for this position of graduate trainee. Describe how you can prepare for this interview. (15Marks) QUESTION FOUR (15MARKS) a) Covid-19 pandemic has forced educational institutions to do online learning. Explain how communication skills would help to fulfill the needs of the learners. Give relevant examples. (10Marks) b) Explain why upward communication is not popular in an organization and what managers should do to encourage it. (5Marks)

UNIVERSITY EXAMINATIONS: 2020/2021 EXAMINATION FOR THE DEGREES OF BACHELOR OF SCIENCE IN INFORMATION TECHNOLOGY/BACHELOR OF BUSINESS INFORMATON TECHNOLOGY BIT 01101/ BBIT 01101: FUNDAMENTALS OF COMPUTER SYSTEMS FULLTIME/ PART TIME/DISTANCE LEARNING DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: ANSWER QUESTION ONE( COMPULSORY)AND ANY OTHER TWO QUESTION ONE (20 Marks) a) Describe the third generation languages giving the features that promote end-user Computing and examples [5Marks] b) Describe THREE types of networks giving characteristics of each. [6Marks] c) Differentiate the following terms: i. Modulation and Demodulation. [2 Marks] ii. Data bus and Address bus. [2 Marks] iii. Digital and Analogue [2 Marks] d) Differentiate between software and hardware giving examples of each [6Marks] e) Explain the following abbreviations [3 Marks] i. ALU ii. BIOS iii. ROM f) Differentiate between the following terms [4Marks] i. Main memory and Secondary memory ii. Intranet and Internet QUESTION TWO (15 Marks) a) Explain three Network topologies giving advantages and two disadvantages of each [8Marks] b) Define Multimedia and explore the application areas of Multimedia [7Marks] QESTION THREE (15 Marks) a) Explain the advantages of Networking [6 Marks] b) Define Assembly Language and discuss its disadvantages [5Marks] c) Discuss TWO types of files used in an organization [4Marks] QUESTION FOUR (15 Marks) a) Discuss the benefits of Preventive Maintenance [6Marks] b) Describe THREE components of the Computer Motherboard [3 Marks] c) Convert the following [6Marks] i. 8610 to Octal ii. Convert 1516 to binary iii. B2D16 to Decimal

UNIVERSITY EXAMINATIONS: 2020/2021 EXAMINATION FOR THE DEGREE OF BSCIT, BSD, BBIT, BISF AND BAC KCA 101H, KCA 001, BAC 1106: HEALTH AWARENESS/ LIFE SKILLS AND INFORMATION LITERACY FULL TIME/ PARTTIME/ DISTANCE LEARNING DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions. QUESTION ONE a) Human immune deficiency has four distinct stages during its progression in human host .Describe in detail the four stages. (20Marks) QUESTION TWO a) Explain with relevant example the three components of life skills (15Marks) QUESTION THREE a) Discuss the importance of information literacy to undergraduate students (10Marks) b) Define information literacy (5Marks) QUESTION FOUR a) Discuss causes of drug abuse and the consequences (15Marks)

UNIVERSITY EXAMINATIONS: 2021/2022 EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN INFORMATION TECHNOLOGY/APPLIED COMPUTING/SOFTWARE DEVELOPMENT BIT 4405/ BAC 2305/ BSD 2303: EXPERT SYSTEMS FULL TIME/PART TIME/DISTANCE LEARNING ORDINARY EXAMINATION DATE: DECEMBER, 2021 TIME: 3 HOURS INSTRUCTIONS: Answer question ONE COMPULSORY and ANY OTHER TWO questions QUESTION ONE – 20 MARKS (COMPULSORY) a) What kinds of knowledge would an automated course selection agent need to represent? [5 marks] b) Using the automated course selection agent as an example, define five problems connected with knowledge representation. [5 marks] c) Identify six application areas where reasoning under conditions of uncertainty is necessary, and explain briefly why. [6 marks] d) Pick one of these areas and design four inference rules that might be used for reasoning in that domain. [4 marks] QUESTION TWO – (15 MARKS) a) Explain the benefits of using rules (6 marks) b) Explain the operating principle of the inference engine (4 marks) c) Would an expert system be a suitable technique for implementing an automated course selection agent? [5 marks] QUESTION THREE – (15 MARKS) a). Given the following rules: R1:If corn is grown on poor soil, then it will rot. R2:If soil hasn’t enough nitrogen, then it is poor soil Explain how the rules will be applied in forward chaining and backward chaining [4 marks] b). Explain the types of knowledge used by neural networks and by rule based systems [5 marks] c). Describe the phases of knowledge engineering? [6 marks] QUESTION FOUR – (15 MARKS) Insurance companies have been considering technologies that are appropriate in processing insurance claims. You are required to explore the possibility of developing a knowledge-based expert system for insurance claim management. Discuss the concepts that can be used in the expert system that can implement such a system [15 marks]

UNIVERSITY EXAMINATIONS: 2021/2022 EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN INFORMATION TECHNOLOGY/ BACHELOR OF BUSINESS IN INFORMATION TECHNOLOGY BIT 4401/BUSS 201: KNOWLEDGE MANAGEMENT FULL TIME/PART TIME/DISTANCE LEARNING DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions. QUESTION ONE (20 MARKS) a. Discuss the impacts of organizational structure on knowledge management. (5Marks) b. Explain why knowledge is considered a source of sustainable competitive advantage? (5Marks) c. Explain any four strategies of knowledge transfer. (4Marks) d. Discuss the activities involved in knowledge engineering. (6Marks) QUESTION TWO (15 MARKS) a. Discuss how ICT can be applied in knowledge management and explain the various factors to be considered for successful implementation of ICT. (6Marks) b. Knowledge architectures exist within four primary contexts that influence the impact KM will have on the organization’s performance. Explain, (4Marks) c. Discuss the opportunities accorded by knowledge portals in an organization and show how they can be implemented in organizations. (5Marks) QUESTION THREE (15 MARKS) a. Explain the importance of knowledge management assessment in the organization. (5Marks) b. What role does organizational culture have in implementing a knowledge management program in the organization? Highlight some of the cultural issues that impede or promote knowledge sharing. (5Marks) c. What are the key drivers of knowledge management? (5Marks) QUESTION FOUR (15 MARKS) a. With aid of examples discuss tge following types of reasoning and how they can be used in knowledge management i. Model based reasoning (2Marks) ii. Constraint based reasoning (2 Marks) iii. Case based reasoning (2 Marks) b. Discuss the types of data mining. (5 Marks) c. Explain the objectives of data mining. (4 Marks)

UNIVERSITY EXAMINATIONS: 2020/2021 EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN INFORMATION TECHNOLOGY/APPLIED COMPUTING/ SECURITY & FORENSICS BIT 4303 BAC 3105/ BISF 3104: ADVANCED WEB DESIGN & DEVELOPMENT FULL TIME/PART TIME/ DISTANCE LEARNING ORDINARY EXAMINATION DATE: DECEMBER, 2021 TIME: 2 HOURS INSTRUCTIONS: Question ONE IS COMPULSORY, Choose TWO OTHER Questions QUESTION ONE (20 marks) Compulsory a). Describe the following web based terminologies [5 marks] i). Layered Architecture ii). Smart Client iii). Tiered Architecture iv). Thick Clients v. Server b). When building a web application, name any appropriate tool that will assist a web author do the following [5 marks] i). Write code ii). Execute client-Side Logic iii). Fetch Processed Server-Side logic such as CGI iv). Execute Server-Side Logic such as php/asp e.t.c v). Inspect HTTP protocol Message c). Sketch a Three- tier and Four layer Client server architecture explaining the components and how they interact with each other [10 Marks] QUESTION TW0 (15 marks) a). Consider the HTML form below, Write PHP script to capture and insert the input into a MySQL Table [10 Marks] b). Include client side logic(JavaScript) that will sanitize what gets sent to the server for name and age [5 Marks] QESTION THREE (15 marks) a). With the use of an appropriate illustration (diagram preferred) describe the following [4 marks] i). Single Layered Architecture ii). Smart Client The figure bellow shows the screen output of a guessing game written running on a browser such that the user makes a guess and it is listed on a web page and a message of too low or you got it right counting the attempts is given. Given that the code is executed on a browser window, i). Suggest the technology that can be used to achieve this. [1 mark] ii). Write the code that will implement this on a browser [10 marks] QUESTION FOUR (15 marks) a). Create a Java Script function called StartTime which doesn’t accept any parameters. This function should have four variables today, H, M, S. a). This function should make use of the Date Object to create a new instance of and should use the methods getHours, getMinutes and getSeconds to fetch these strings to the variables created. [5 marks] b). Add the Appropriate lines of code (HTML and JavaScript) that will allow our function to write to HTML page when it loads. The Time should be in the format H:M:S. We would Like this Time to appear in the Title Bar (*Hint Use getElementByID ) [5 marks] c). Write a PHP connection string that makes use of a link variable to connect to a database ‘stock’ with the username ‘Admin’ and password ‘scribbler234’ [5 marks]