April 12, 2022

UNIVERSITY EXAMINATIONS: 2015/2016 EXAMINATION FOR THE DIPLOMA IN NETWORK SECURITY AND COMPUTER FORENSICS DNF 201 COMMUNICATION SYSTEMS FUNDAMENTALS DATE: AUGUST 2016 TIME: 1½HOURS INSTRUCTIONS: Answer Any THREE Questions. QUESTION ONE a) The equipment below is found in communication systems. Describe the function of each. [10 Marks] i. MODEM ii. CODEC iii. MUX/DEMUX iv. Repeater v. Transponder b) Give the parts of a communication system and their function. (Use a neat diagram to show how information is transmitted through these parts. [6 Marks] c) Briefly describe the hamming code as used in forward error correction [4 Marks] QUESTION TWO a) Define the terms digital message and digital signal. Clearly show the difference[4 Marks] b) Give in full the acronyms [3 Marks] i. GSM ii. CDMA iii. PCM c) Briefly describe the three steps of the Analogue-to-Digital Converter (ADC) as found in the PCM and other related equipment. (Neat block diagrams and waveform representations should be included) [7 Marks] d) List three applications of computer systems [3 Marks] e) Give three advantages of digital transmission over the cheaper analogue transmission [3 Marks] QUESTION THREE a) Define the following as used with data transmission i. Signal-to-Noise Ration (SNR) ii. modulation rate iii. Bit-Error-Rate (BER) iv. data rate v. bandwidth b) Describe the following characteristics of a carrier signal. (A neat waveform diagram should be included) i. frequency ii. phase iii. amplitude iv. wavelength c) Describe the following modulation methods. In each case show the resulting waveforms for a data segment 11010001 [6 Marks] i. FSK (frequency shift keying) ii. ASK (Amplitude shift keying) d) Briefly discuss the JPEG data compression mechanism [4 Marks] QUESTION FOUR a) Define the following communication techniques [3 Marks] i. modulation ii. coding iii. multiplexing b) Give an advantage and disadvantage of the following multiplexing methods [4 Marks] i. FDM (frequency division multiplexing) ii. TDM (time division multiplexing) c) Explain two reasons that make modulation necessary in communication systems [2 Marks] d) Describe the following types of channel noise [4 Marks] i. white noise ii. crosstalk iii. inter-modulation noise iv. impulse noise e) Describe the following encoding methods. Also for each give an advantage and show the encoding for the data segment 1011100 [7 Marks] i. differential Manchester ii. NRZ (non-return to zero) QUESTION FIVE a) Expand the following acronyms as used in satellite communication [4 Marks] i. LEO ii. GEO iii. GPS iv. C-band b) Briefly outline the satellite communication system. (A sketch may be needed) [5 Marks] c) Give two advantages of satellite systems over optical fiber [2 Marks] d) Discuss the following error detection techniques [6 Marks] i. checksum ii. CRC iii. Parity check e) Show the LRC of the following data segment: 100010, 1010101, 1100101, 100001. Assume a positive parity. [3 Marks]

UNIVERSITY EXAMINATIONS: 2015/2016 EXAMINATION FOR THE DIPLOMA IN INFORMATION TECHNOLOGY DIT307 DATA STRUCTURES & ALGORITHMS DATE: AUGUST 2016 TIME: 1½HOURS INSTRUCTIONS: Answer Any THREE Questions. QUESTION ONE a) Briefly explain the following algorithm design paradigms (8 Marks) i. Divide and conquer ii. Branch and bound iii. Greedy method iv. backtracking b) Outline four advantages of using structured English in program design (4 Marks) c) A client has requested that you test an application for him. Describe two types of data that you could use in the test (4 Marks) d) With the aid of a flow chart in each case, distinguish between a selection and a repetition controls as used in programming (4 Marks) QUESTION TWO a) Write a pseudo code that would delete the first element of a singly linked list data structure (4 Marks) b) Figure 1 below shows a tree data structure. Use it to answer the questions that follow: Figure 1 (i) Identify the type of tree giving a reason for your answer (3 Marks) (ii) State the output for each of the following traversal methods if applied on the tree:- 1) Post order (3 Marks) 2) In order (3 Marks) 3) Pre order (3 Marks) c) Briefly explain the two properties that are used as a measure of the performance of an algorithm (4 Marks) QUESTION THREE a) Explain three operations that can be performed on a stack data structure (6 Marks) b) Study the following pseudocode and then answer the question that follows:- 1. Start 2. Declare variable position 3. Enter the pupil position in class 4. If position=1 5. Display “Award 3 exercise books” 6. Else If position=2 7. Display “Award 2 exercise books” 8. Else If position=3 9. Display “Award a pencil and a rubber” 10. Else 10 6 4 8 18 15 21 3 11. Award nothing 12. End IF 13. Stop Required: write a C++ or C program that would implement the above pseudocode. Use if…else control structure (8 Marks) (c) Outline the steps of designing an algorithm (6 Marks) QUESTION FOUR a) Describe the following searching techniques:- (i) Binary (3 Marks) (ii) Sequential (3 Marks) b) Distinguish between static and dynamic data strictures giving an example in each case (4 Marks) c) With the aid of diagrams, describe the following data structures:- (i) Linked list (4 Marks) (ii) Queues (4 Marks) d) Explain the term ‘data structure’ (2 Marks) QUESTION FIVE (a) Figure 2 below shows a typical data structure. Use it to answer the questions that follow:- 4  6   2    0 5   3  8     7 9  0   11   13 Figure 2 Required: Write a C or C++ program statement to:- (1) (i) Declare the data structure (3 Marks) (ii) Initialize the data structure (4 Marks) (2) State two limitations of this data structure (2 Marks) b) Briefly explain five properties of an algorithm (5 Marks) c) Give two applications of graphs ADT (Abstract Data Type) (2 Marks) d) Outline the differences between structures and unions (4 Marks)

UNIVERSITY EXAMINATIONS: 2015/2016 EXAMINATION FOR THE DIPLOMA IN INFORMATION TECHNOLOGY DIT306 STRUCTURED CABLING DATE: AUGUST 2016 TIME: 1½HOURS INSTRUCTIONS: Answer Any THREE Questions. QUESTION ONE a) Standards establish technical criteria and ensure uniform performance among network systems and components. They enable you to build modular networks that can easily accommodate new technologies, equipment, and users as opposed to traditional cabling which lacked flexibility. Explain some of the disadvantages of traditional cabling (5 Marks) b) Explain the following terms (8 Marks) i. Backbone Cabling ii. Horizontal Cabling iii. Work-area Cabling iv. Telecommunication Rooms / Closets c) What functions do the following cable testing tools perform? (4 Marks) i. Multimeter ii. Induction amplifier/tone generator iii. Certification field testers. d) Briefly explain the following unwanted transfer of signals (3 Marks) i. NEXT ( Near End Cross Talk) ii. Alien crosstalk (AXT) iii. Far end crosstalk (FEXT) QUESTION TWO a) Define structured cabling and give five advantages that come with it (7 Marks) b) Give five desirable features of a server computer (5Marks) c) You are the network administrator of your firm, there is need to expand the network to accommodate more users. Give reasons as to why you would choose a router over a Hub as a networking device (5 Marks) d) Glory is the IT maintenance Manager in XYZ Company. She wants to place an order for a switch. What are some of the factors that she should consider (3 Marks) QUESTION THREE a) Wireless fidelity or simply Wi-Fi works with no physical wired connection between sender and receiver by using radio frequency (RF) technology. These type of networks have become popular because of the advantages that come with them explain any five (5 Marks) b) Explain five applications of structured cabling (5 Marks) c) Explain the term POE and give five advantages it brings to an installation (7 Marks) d) List down three POE applications (3 Marks) QUESTION FOUR a) Unwanted voltage that is sent to electrical equipment is called a power disturbance. Typical power disturbances include voltage surges, sags, spikes, and oscillations. Define each of the power problems (4 Marks) b) To ensure that any cabling project is done thoroughly, accurately, and on time, a flow chart is created. The flowchart should include each of the tasks that must be completed and the order in which they should be tackled as well as a timeline for each of these tasks. Name the tasks that a flow chart should include. (5 Marks) c) Give the basic steps one should follow to connect cable to jacks (7 Marks) d) Define the following terms (4 Marks) Cross talk EMI MDF Attenuation QUESTION FIVE a) Explain the personal safety precautions that should be taken before Installing Cable (7 Marks) b) Outline the steps you would take to test cables after installation (8 Marks) c) Many outside factors can contribute to interference on the networking media. Give five examples of sources that can produce outside signals that can impose themselves on wire pairs in UTP cable (5 Marks)

UNIVERSITY EXAMINATIONS: 2015/2016 EXAMINATION FOR THE DIPLOMA IN BUSINESS INFORMATION TECHNOLOGY DIT305 PROGRAMMING METHODOLOGY DATE: AUGUST 2016 TIME: 1½HOURS INSTRUCTIONS: Answer Any THREE Questions. QUESTION ONE a) Explain the following components of a C program and give an example in each case. [10 Marks] i) Pre-processor directive ii) Declaration iii) Assignment iv) Statement v) Function b) i) Discuss three categories of program errors, stating what causes them. [3 Marks] ii) Indicate which error category each of the following belongs to i) An indefinite loop ii) Misspelling keywords iii) Division by zero error iv) Using an undeclared variable [4 Marks] c) Explain how dry running is useful in ensuring error free programs during program testing. [3 Marks] QUESTION TWO (a) Consider the following declarations and assignments: int num1=3, num2=2; float f1=2.4, f2=1.2; State the type and value of the following expressions. Give a reasons for your answer. i.) num1/num2 ii.) f1/f2 iii.) f1/num1 [6 Marks] (b) Given the following examples: A = B and A = = B Explain the difference between the two operators (= and = =) [4 Marks] (c) State TWO reasons for using comments in a program. [2 Marks] (d) Write a C program that calls a function that calculates the area of a given circle. Area = PI*R*R [8 Marks] QUESTION THREE (a) Rewrite the following code segment using a while statement int a; int b=10; for(a=1; a<b; a++) { printf(“%d\n “, a/b); } [4 Marks] (b) Explain the effect of the following line of code, stating where you would you would expect it to appear in a program. #define PI 3.14158 [4 Marks] (c) Outline THREE reasons why it is important for a programmer to adopt to a well defined program layout. [3 Marks] (d) After a bank customer successfully enters his/her Personal Identification Number (PIN) on an Automated Teller Machine (ATM), an integer-based menu (1-5) appears from which the customer makes his/her transaction choice. The ATM screen displays a message depending on the customer’s selection as follows: Customer Choice Message 1 Proceed to withdraw 2 Change ATM PIN 3 Pay utility bills 4 Print mini statement 5 Exit System Using the C switch statement, illustrate how the above can be implemented. [9 Marks] QUESTION FOUR (a) Write a C program that asks a user to enter his/her three names and then prints the names on the screen. [10 Marks] (b) Explain why C language is said to be case sensitive, stating one challenge posed by this characteristic. [2 Marks] (c) Write a single statement for each of the following: [8 Marks] i. Declare an array for 10 books’ prices ii. Test if age is above 20 iii. Print the word ” Methodology” below the word “Programming” by using a single printf() statement iv. Decrement a variable called step by 1 QUESTION FIVE (a) Draw a flowchart for a program that works as follows: i) Reads the selling price of an item ii) Reads the buying price of the item iii) If the selling price is less than or equal to the buying price, it prints the message “No profit made”, Otherwise it calculates the profit. (Selling price – buying price) iv) If the profit is more than Sh. 10,000, the commission for the salesman is calculated as 3% of the profit, otherwise the commission is zero. v) The program prints the profit and the commission. [10 Marks] (b) Write a C program to implement the flowchart designed in (a). [10 Marks]

UNIVERSITY EXAMINATIONS: 2014/2015 EXAMINATION FOR THE DIPLOMA IN INFORMATION TECHNOLOGY DIT304 PRINCIPLES OF COMPUTER SUPPORT & MAINTENANCE DATE: AUGUST 2016 TIME: 1½HOURS INSTRUCTIONS: Answer Any THREE Questions. QUESTION ONE (a) Suggest a way of troubleshooting the following computer faults:- i) System beeps more than once (2 Marks ) ii) Light Emitting Diode (LED) on the Hard Drive or Optical Disk stays on continuously (2 Marks) (b)Briefly explain any five safety precautions to be observed in a computer Laboratory (5 Marks) (c) Describe the following motherboard form factors:- i) Baby AT (4 Marks) ii) ATX motherboard (4 Marks) (c) Describe three factors you would consider while upgrading a Processor (3 Marks) QUESTION TWO (a) Describe the following terminologies with reference to computer memory:- i) Extended memory (2 Marks) ii) Base memory (2 Marks) (b) After assembling a system unit, describe the major visual checks you would use to locate faults on the following components:- i) RAM ii) Power supply unit Hard disk iii) Monitor iv) Hard disk (8 Marks) (c) Differentiate between Molex & mini Molex power connectors (2 Marks) (d) A laboratory technician has been requested by a lecturer to prepare a practical lesson on “Hard Disk Interfaces” to a group of students. Required:- i) List three categories of Hard Disk Interfaces that could be demonstrated to the students (3 Marks) ii) Outline one advantage of each of the interfaces mentioned in d(i) above (3 Marks) QUESTION THREE (a) Describe the following terms: i) Disk formatting ii) NTFS iii) Computer booting (6 Marks) (c) Differentiate the following terms:- i) Primary partition & extended partition (2 Marks) ii) TFT monitors & CRT monitors (2 Marks) iii) Corrective maintenance & perfective maintenance (2 Marks) (d) Citing an example, justify the statement below: “Whoever controls the operating system, controls the software for the Personal Computer (PC), and whoever controls the motherboard, controls the hardware” (5 Marks) (e) Explain the hot swapping technology as used in computing (3 Marks) QUESTION FOUR (a)List and describe the functions of any four tools or equipment required for effective field servicing of microcomputer systems (8 Marks) (b)Janet found that her computer was very slow when loading programs. State three solutions that could be applied to overcome this problem (3 Marks) (c) Mr. Kamau switched on his computer but it could not boot. Required:- (i) State three possible causes of the booting failure given that there was electronic power. (3 Marks) (ii) For each of the problems identified in 4(i), state a possible solution. (3 Marks) (d) Discuss the functions of a PC Power Supply Unit (3 Marks) QUESTION FIVE (a) Briefly explain the concept of ‘cache memory’ in PC architecture (4 Marks) (b) Give two computer components that would be advisable to replace rather than repair when faulty due to dangerous voltage (2 Marks) (c) Explain five importance’s of carrying out preventive maintenance on a PC (10 Marks) (d) List and describe any Four factors to consider when buying a PC (4 Marks)

UNIVERSITY EXAMINATIONS: 2015/2016 EXAMINATION FOR THE DIPLOMA IN BUSINESS/ INFORMATION TECHNOLOGY DIT204 DISCRETE MATHEMATICS DATE: AUGUST 2016 TIME: 1½HOURS INSTRUCTIONS: Answer Any THREE Questions. QUESTION ONE a) i) Define the term Boolean algebra (2 Marks) ii) Use Boolean identities to prove that x + x = x (2 Marks) iii) Express the value F (x, y, z) = (x̅ + y) ′ + x̅y as a sum of products and then complete sum-of- products form. (4 Marks) b) LetA = {1, 2, 3, 4}. In each relation given below, determine whether they are reflexive, symmetric and anti-symmetric or transitive is satisfied or not. In each case, justify your answer. R1 = {(1,1), ( 1,2), (2,1), (2,2), (3,3), (3,4), (4,3), (4,4)} (3 Marks) R2 = {(1,1), ( 2,2), (3,3)} (3 Marks) R3 = {(1,1), (1,3), (3,1), (1,2), (3,3), (4,4)} (3 Marks) R4 = {(1,1), (1,3), (1,4), (3,1) , (2,2), ( 3,3), (3,4), ( 4,4)} (3 Marks) QUESTION TWO a) Define the following terms as used in graph theory: i. a directed graph (2 Marks) ii. a multigraph (2 Marks) iii. a subgraph (2 Marks) iv. a Null graph (2 Marks) b) (i) Draw the graph G of a whose adjacency matrix A = aij (6 Marks) (ii) Use the graph in b (i) above to find the in – degree, out- degree and degree of each Vertex (6 Marks) QUESTION THREE a) Define a proposition as used in propositional logic (2 Marks) b) Using appropriate truth diagrams, define the following:- i) Conjunction (2 Marks) ii) Disjunction (2 Marks) iii) With the help of a truth table, show that p ∨ (q ∧ r) ≡ (p ∨ q) ∧ (p ∨ r) (4 Marks) iv) Show that (p ∧ q) ∧ ∼ (p ∨ q) a contradiction (4 Marks) c) Using suitable Venn diagrams, illustrate each of the following set operations i. Union of sets (2 Marks) ii. Disjoint sets (2 Marks) iii. Complement of a set (2 Marks) 0 0 1 1 1 1 0 0 1 0 0 1 0 0 0 0 0 0 1 1 0 0 1 0 0 QUESTION FOUR a) Define a function as used in Discrete Mathematics (3 Marks) b) Given two sets: A= {a, g, k, p, t} and B = {2, 5, 7, 8, 9, 3}, state, with reasons, whether the following are functions or not. i. f = { (a,2), (g,3), (k,9), (g,3), (t,4)} (3 Marks) ii. g = { (k,9), (a,8), (g,5), (p,3), (t,3)} (3 Marks) iii. h = { (k,2), (p,8), (t,b), (g,c), (k,3)} (3 Marks) c) Differentiate, with examples, amongst surjectives, injectives and Bijectives (4 Marks) d) Let A = (4, 7, 9, 6), B = (f, g, h, k) and C= (p, q, r) if f is the function: f: A→ B and g: B→ C defined by : f = {(4, f), (7, k), (9, f) (6, h)} g = {(f, r), (g, p), (h, p), (k, r)} Find the composition function f◦g (4 Marks) QUESTION FIVE a) Define the following terms as used in discrete mathematics i. A Set (2 Marks) ii. A Venn diagram (2 Marks) b) Use the set builder notation to represent the following sets: i. V, a set of all the English Alphabet vowels (2 Marks) ii. P, a prime number between 5 and 7 (2 Marks) c) Write down English statements to represent the following sets: i. A = {x: x 2 = 4} (2 Marks) ii. A = {x: x 2 + 1 = 0} (2 Marks) d) In a class of 50 students, 30 play football, 21 play basketball, 20 plays volleyball, 16 play both football and volleyball, 13 play both football and basketball and play both volleyball and basketball. If 12 play all the three games, determine: i. The number of students that play only one game. (2 Marks) ii. The number of students that play only basketball and football. (3 Marks) iii. The number of students that play no games at all. (3 Marks)

UNIVERSITY EXAMINATIONS: 2015/2016 EXAMINATION FOR THE DIPLOMA IN BUSINESS INFORMATION TECHNOLOGY DIT203 DBIT205 SYSTEM ANALYSIS & DESIGN DATE: AUGUST 2016 TIME: 1½HOURS INSTRUCTIONS: Answer Any THREE Questions. QUESTION ONE (a) Discuss the objectives for the following stages of the systems development life cycle: i) Feasibility study (2 Marks) ii) Systems analysis (2 Marks) iii) Systems design (2 Marks) iv) Systems evaluation (2 Marks) (b) With reference to data flow diagrams, explain the meaning of each of the following terms: i) External entity (2 Marks) ii) Process (2 Marks) iii) Data store (2 Marks) iv) Context diagram (2 Marks) (c) Explain the importance of documenting system development activities and decisions (4 Marks) QUESTION TWO a) Define the following terms: (3 Marks) i. System ii. Data iii. Information b) Distinguish phased and pilot changeover methods . (4 Marks) c) State four challenges that a systems analyst is likely to face. (4 Marks) d) Give four reasons system implementation occasionally fails (4 Marks) e) Define a CASE tool and outline three advantages of using CASE tools for requirements analysis and system design. (5 Marks) . QUESTION THREE (a) State three advantages and three disadvantages of using interviews for fact finding during systems investigation. (6 Marks) (b) Outline three categories of tests necessary for an information system. (6 Marks) (c) Discuss four types of systems stakeholders, stating how they fit being considered as such. (8 Marks) QUESTION FOUR (a) Da) Discuss five characteristics of a good systems analyst (10 Marks) (b) (b) A computer system is to be developed for Happy Ventures Industries (HVI) Ltd, manufacturers of Plastic containers and kitchenware. HVI has many customers, each of whom place a number of orders with the company. Each order is composed of a number of order items. Represent the information in an Entity Relationship Diagram. (10 Marks) QUESTION FIVE (a) Discuss five causes of user resistance. (10 Marks) (b) Discuss how resistance can be prevented or resolved. (10 Marks)

UNIVERSITY EXAMINATIONS: 2014/2015 EXAMINATION FOR THE DIPLOMA IN INFORMATION TECHNOLOGY DIT 304 PRINCIPLES OF COMPUTER SUPPORT MAINTENANCE DATE: AUGUST 2016 TIME: 1½HOURS INSTRUCTIONS: Answer Any THREE Questions. QUESTION ONE (a) Suggest a way of troubleshooting the following computer faults:- i) System beeps more than once (2 Marks ) ii) Light Emitting Diode (LED) on the Hard Drive or Optical Disk stays on continuously (2 Marks) (b)Briefly explain any five safety precautions to be observed in a computer Laboratory (5 Marks) (c) Describe the following motherboard form factors:- i) Baby AT (4 Marks) ii) ATX motherboard (4 Marks) (c) Describe three factors you would consider while upgrading a Processor (3 Marks) QUESTION TWO (a) Describe the following terminologies with reference to computer memory:- i) Extended memory (2 Marks) ii) Base memory (2 Marks) (b) After assembling a system unit, describe the major visual checks you would use to locate faults on the following components:- i) RAM ii) Power supply unit Hard disk iii) Monitor iv) Hard disk (8 Marks) (c) Differentiate between Molex & mini Molex power connectors (2 Marks) (d) A laboratory technician has been requested by a lecturer to prepare a practical lesson on “Hard Disk Interfaces” to a group of students. Required:- i) List three categories of Hard Disk Interfaces that could be demonstrated to the students (3 Marks) ii) Outline one advantage of each of the interfaces mentioned in d(i) above (3 Marks) QUESTION THREE (a) Describe the following terms: i) Disk formatting ii) NTFS iii) Computer booting (6 Marks) (c) Differentiate the following terms:- i) Primary partition & extended partition (2 Marks) ii) TFT monitors & CRT monitors (2 Marks) iii) Corrective maintenance & perfective maintenance (2 Marks) (d) Citing an example, justify the statement below: “Whoever controls the operating system, controls the software for the Personal Computer (PC), and whoever controls the motherboard, controls the hardware” (5 Marks) (e) Explain the hot swapping technology as used in computing (3 Marks) QUESTION FOUR (a)List and describe the functions of any four tools or equipment required for effective field servicing of microcomputer systems (8 Marks) (b)Janet found that her computer was very slow when loading programs. State three solutions that could be applied to overcome this problem (3 Marks) (c) Mr. Kamau switched on his computer but it could not boot. Required:- (i) State three possible causes of the booting failure given that there was electronic power. (3 Marks) (ii) For each of the problems identified in 4(i), state a possible solution. (3 Marks) (d) Discuss the functions of a PC Power Supply Unit (3 Marks) QUESTION FIVE (a) Briefly explain the concept of ‘cache memory’ in PC architecture (4 Marks) (b) Give two computer components that would be advisable to replace rather than repair when faulty due to dangerous voltage (2 Marks) (c) Explain five importance’s of carrying out preventive maintenance on a PC (10 Marks) (d) List and describe any Four factors to consider when buying a PC (4 Marks)

UNIVERSITY EXAMINATIONS: 2015/2016 EXAMINATION FOR THE DIPLOMA IN BUSINESS/ INFORMATION TECHNOLOGY DIT111 HIV/AIDS DATE: AUGUST 2016 TIME: 1½HOURS INSTRUCTIONS: Answer Any THREE Questions. QUESTION ONE Male circumcision has contributed to 60% reduction of HIV/AIDS transmission. Discuss this concept (10 Marks) QUESTION TWO It is important for people to embrace home based care in cases of terminal illnesses. Discuss five challenges faced by home based care indicating clearly the solution to each challenge (10 Marks) QUESTION THREE People living with HIV should adopt a lifestyle that will ensure longer life. Discuss positive living in people living with HIV (10 Marks) QUESTION FOUR Voluntary counseling and testing is important in HIV /AIDS prevention. Discuss the benefits of voluntary counseling and testing i) Hiv positive clients (5 Marks) ii) HIV negative clients (5 Marks) QUESTION FIVE HIV/AIDS has impacted negatively on many sectors around the world. Discuss five impacts of HIV on business. (5 Marks)

UNIVERSITY EXAMINATIONS: 2015/2016 EXAMINATION FOR THE DIPLOMA IN BUSINESS/ INFORMATION TECHNOLOGY DIT111 INFORMATION LITERACY DATE: AUGUST 2016 TIME: 1½HOURS INSTRUCTIONS: Answer Any THREE Questions. QUESTION ONE Plagiarism is a serious issue among students in higher education. Discuss what students can do to avoid plagiarism. (10 Marks) QUESTION TWO a) Using appropriate examples, explain THREE information literacy skills useful to a university student. (6 Marks) b) Explain FOUR situations when referencing is not required. (4 Marks) QUESTION THREE a) One of the factors that have made information literacy an essential attainment is that participative citizenship in today’s world requires that all people, not only students, become information-literate. List and discuss THREE reasons why information literacy is essential in the 21st century. (6 Marks) b) What is a journal? Discuss TWO uses of a journal (especially the e-journals) as a university student. (4 Marks) QUESTION FOUR a) Define bibliography. (2 Marks) b) Using the APA referencing style, prepare the references for the items below: The Knowledge Creating Company: How Japanese Companies Create the Dynamics of Innovation, By Ikujiro Nonaka and Hirotaka Takeuchi, 1995, (Published in New York by Oxford University Press). (8 Marks) QUESTION FIVE a) Discuss TWO possible reasons of including citations and references in an academic assignment. (4 Marks) b) Explain THREE reasons why students should be very careful while using information from the internet especially the free web. (6 Marks)

UNIVERSITY EXAMINATIONS: 2015/2016 EXAMINATION FOR THE DIPLOMA IN BUSINESS INFORMATION TECHNOLOGY DIT106 DNF105 INTERNET PROTOCOLS & TECHNOLOGIES DATE: AUGUST 2016 TIME: 1½HOURS INSTRUCTIONS: Answer Any THREE Questions. QUESTION ONE (a)Define the following terms: – (6 Marks) (i) Internet (ii) Protocol (iii)Client (iv)Server (v) The Web (vi)Intranet (b) Summarize six factors that you would consider when sourcing for an Internet Service Provider (ISP) (6 Marks) (c) Outline four advantages of HTML (4 Marks) (d) Complete the table below by describing what each of the Top Level Domains (TLDs) denotes: (4 Marks) Top Level domain                            Description .com .org .int .mil QUESTION TWO (a) Write the HTML code to generate the web page shown below when run via a web browser: – (5 Marks) (b) Explain four benefits of the Internet technology to an organization (4 Marks) (c) Give the meaning of the following acronyms: – (4 Marks) (i) FTP (ii) TCP (iii)SMTP (iv)HTTP (d) Define the term browser and list down four commonly used browsers (5 Marks) (e) Explain the following types of websites: – (2 Marks) (i) Personal website (ii) Commercial website QUESTION FOUR (a) The Internet has been described in various ways. In reference to the above statement, evaluate each of the following descriptions of the Internet: (i) So close……yet so far way (3 Marks) (ii) A knowledge treasure bank (3 Marks) (iii)An international market (3 Marks) (b) (i) Describe the purpose of a search engine (2 Marks) (ii) State two examples of popular Internet search engines (2 Marks) (c)Highlight four benefits of using social networking sites as a means of communication (4 Marks) (d) Highlight three uses of the Internet technology to the Internet users (3 Marks) QUESTION FIVE (a)Explain the following terms as used in information security:- (i) Firewall (2 Marks) (ii) Data encryption (2 Marks) (b) List and briefly explain six basic requirements needed to connect to the Internet (6 Marks) (c) Briefly describe the following Internet connection types:- (i) ISDN (2 Marks) (ii) Dial-up Internet connection (2 Marks) (d) Briefly explain how the TCP/IP enables communication over the Internet (6 Marks)

UNIVERSITY EXAMINATIONS: 2015/2016 EXAMINATION FOR THE DIPLOMA IN BUSINESS/ INFORMATION TECHNOLOGY DIT105 DBIT101 BUSINESS COMMUNICATION SKILLS DATE: AUGUST 2016 TIME: 1½HOURS INSTRUCTIONS: Answer Any THREE Questions. QUESTION ONE a) Describe the communication process. (6 Marks) b) Define the following terms: (4 Marks) i. -encoding ii. -decoding iii. -metacomunication iv. -feedback c) Explain how one can overcome the communication barriers. (10 Marks) QUESTION TWO a) Describe five purposes of communication. (10 Marks) c) Describe briefly the five steps of the listening process (10 Marks) QUESTION THREE a) Name and explain the principles of effective persuasion. (10Marks) b) Real communication is an active process and three things show successful communication. Explain them. (6 Marks) c) Differentiate between verbal and non verbal communication and name two examples of each. (4 Marks) QUESTION FOUR a) Name five types of business reports. (4 Marks) b) Explain the importance of business reports to managers. (2 Marks) b) Explain how one can improve their reading habits. (4 Marks) c) Describe how you can prepare for a job interview. (10 Marks) QUESTION FIVE a) Explain the benefits of using visual aids. (6 Marks) b) Briefly describe THREE types of minutes. (6 Marks) c) Describe the role of a chairman in a meeting. (6 Marks) d) What is the most striking thing that you have learnt in this class? (2 Marks)