REVIEW OF SECOND TERM

Computer Science ICT        SSS2       THIRD Term

WEEK 1

REVIEW OF SECOND TERM

Content

OBJECTIVE        

                                       

1.      ……………… converts your program into a form that can be executed directly by the computer

1. Software            (b) Interpreter                  (c) Hardware

 

2.       _________ is the step-by-step procedure for solving a particular problem.

1. Problem b. sequence   c. algorithm d. symbol

 

3.       _________ is the diagrammatic representation of a step-by-step procedure for solving a particular problem.

1. Algorithm b. Program c. Flowchart d. sequential solution

 

4.       The following are characteristic of a flowchart EXCEPT one

1. Flowcharts are read and drawn from bottom to top b. Flowcharts end symbol signifies the end of a program c. Flow lines are used to connect the flowchart symbols         

1. Different flowchart symbols are used for different operations.

7.      The actual writing or coding of a program in a particular programming language is known

      as_________

1. Debugging b. Program Coding c. Program Executing d. Program Decoding

 

8.      The following are characteristics of a good program EXCEPT one.

1. Accuracy b. Clarity c. Compatible d. Readability

 

9.      The following are characteristics of an interpreter EXCEPT one

a. Execution is fast b. The resulting code is some sort of intermediate code c. The resulting code is interpreted by another program d. relatively little time is spent analyzing and processing the program

 

10.      _________ is a list of instructions issued to the computer to perform a particular task.

1. Algorithm b. Computer program c. Hardware d. Peripherals

 

11.      One of the following is NOT a precaution to be taken when writing a program.

1. No step should be skipped b. The order of execution must be followed sequentially c. Do not rush d. The use of a step-by-step approach should not be followed

 

12.      One of the following is NOT an objective of SDLC

1. To minimize the productivity of the system staff
2. To ensure that a high-quality system is delivered
3. To maximize the productivity of the system staff
4. To provide strong control over the system development

13.     __________is the person that uses analysis and design techniques to solve business problems using

Information technology

1. Programmer b. Data Entry Staff c. System Analyst d. Computer Engineer

 

13.      The following are the skills of a system Analyst EXCEPT one

1. Information Technology knowledge and programming expertise
2. Solving the problem using figures
3. People Management knowledge and skill
4. Understanding business problem

 13.  __________is the process of understanding in detail what a system should accomplish and what

is required to accomplish it.

1. System Design b. System Analyst c. System Analysis d. SDLC

14.      The following are advantages of the System Development Life Cycle EXCEPT one

1. Help in inefficient allocation of resources to a systems development project
2. Promotes consistency among systems development project
3. Simple and easy  to use
4. Easy to manage due to the rigidity of the model

 

15.      _______ is a collection of interrelated components that function together to form a whole and

achieve an outcome.

1. Subsystem b. System     c. Life cycle d. Development

 

16.      The following are the Waterfall Development cycle stage EXCEPT______

1. Investigation Stage b. System analysis Stage c. System Manufacturing Stage

4. System design Stage

 

17.      The oldest and classical method of SDLC is called_________ a. Waterfall Mean   

b. Waterfall Model c. Waterfall Median d. Waterfall Mode

20.     One of the following is NOT an information system component part.          a. People     

b. Communication Network c. IT room d. Data/ Information

 

21.      One of the following is NOT an input Device.
    1. Digital Camera b. Monitor c. Mouse d. Keyboard

 

22.      The following are examples of a word processor EXCEPT one.

a. Corel Draw b. Microsoft Word c. Word Perfect d. Perfect Writer

 

23.     _______ is the use of computer software to create, edit, view, store, retrieve and print text documents.

1. Word Processor b.  Word Communication c. Word Processing d. Word Application

 

24.      The following are types of display effects of a Font Style EXCEPT one

1. Italics b. Underline           c. Times New Roman d. Bold

 

25.      ________feature creates a text with spacing before and after.

1. Indent and Spacing b. Superscript                   c. Change Case d. Double strikethrough

 

26.      The following are examples of Indent and spacing EXCEPT one

1. Alignment b. Indentation c. Tabs d. Ribbon

27.     ________ refers to the unforeseen loss of data or information.

          a. Backup b. Data loss c. Overwriting d. Antivirus

28.     _______ is the process of making copies of files, so that the additional copies may be used to restore the original after a data loss event.

a. Manipulating b. Data Loss Event c. Backup d. Duplication

 

29.     An occurrence of data loss can be called ________________

a. Data Loss Event b. Data Loss Occurrence c. Data Loss Show d. Data Loss occasion

 

30.     The following are limitations of computerized file systems EXCEPT one.

a. Vulnerable to virus attacks b.  Incompatible data file c.  Cheap to set it up d. Data are often duplicated

 

31.     The following are advantages of computer files over manual files EXCEPT one

a. Slow and inefficient in the processing of information b.  Accurate information and faster decision-making c. Takes less space d. More timely information can be produced

 

32.      One of the following is NOT a computer file classification

1. Reference file b. Random file c. Master file d. Transaction file

 

33.      __________ is a collection of related fields

1. Data b. Field c. Record d. file

 

34.      The smallest unit of information stored in a computer file is called ________

1. Files b. Data item c. Record d. Indexed

 

35.      The following are types of file organization methods EXCEPT _________

1. Serial b. Sequential c. Transaction d. Indexed

 

36.      A file with a reasonable amount of permanency is known as__________ file.

1. Reference files b. Master file c. Transaction file d. serial file

 

37.      A collection of wires through which data is transmitted from one part of a computer to another is known as   

1. Address             B. Bus           C. Register   

 

38.      Computer data processing is grouped into the following EXCEPT one.

1. Conversion        B.  Manipulation      C. Register

 

39.      The following are types of register EXCEPT ___________

1. CMR        B.  CIR         C.  MDR

 

40.      ___________ register acts like a buffer and holds data that is transferred from the memory to the processor.

1. MDR        B. CIR                    C.  CP

 

THEORY

(Answer 1 & 2 and any other 2 questions)

                                                                                     

1a.     Define the following;                                                1mark each

1. Register
2. Bus
3. Address

 

1b.     Define the following terms;                                       1 mark each

1. Computer files
2. Record
3. Field
4. Data Item

1c.     Define the following;                                                2marks each

1. System Development Life Cycle   
2. System Analysis
3. System Design       
4. System Analyst

                                                                                     

2a.     Explain the following;                                              1mark each  

1.  System       
2.  Information System
3.  Subsystem                                                                               

 

2b.     Define the following;

1. Program
2. Algorithm
3. Flowchart

 

2c      I. Construct a Truth Table of two (2) variables, using XOR logic gate.                             2marks

3a.     List and explain types of register                                                                     5marks

b.       State five limitations of computerised file system                                               3marks

c.       Draw a flow chart to calculate the area of a triangle with base, b and height, h.   4marks

d.       State THREE (3) the objectives of SDLC                                                           3marks

 

4a       Draw a sample of file structure                                                                       3marks

b.       List and explain the three methods for files security                                           3marks         

c.       State the criteria for classifying computer files.                                                 3marks

d.       Write an algorithm that will compute the average of three numbers a, b, c.         3marks

 

5.       List and explain FOUR (4) characteristics of a program                                      5marks

b.       List FIVE (5) stages in the Waterfall System Development cycle.                         3marks

c.       State three advantages of computer files over manual files.                                4marks         

d.       State three characteristics of an algorithm.                                                       3marks

 

6.       Explain five (5) systems Analyst problem-solving Approach                                4 marks.

b.       Write a BASIC program to calculate the Area of a Triangle                                 3marks

c.       List FIVE (5) steps involved in program development                                         4marks

d.       List FIVE (5) disadvantages of System Development Life Cycle