WAEC - Computer Studies (2019)

• 1

  The personnel who deals with the computer and its management is called? 

  回答

  (B)

  liveware 
• 2

  The map of Nigeria is an example of ? 

  回答

  (D)

  graphic data
• 3

  The hexadecimal number 13, expressed as a binary here is? 

  回答

  (A)

  00010011. 
• 4

  Which of the following statements are true about computer? 

  I.Constructed from electronic components. II. It has self regeneration capability.

  III. It has facility for storage of data and programs. IV.It has provision tor input and output of data.

   

  回答

  (C)

  I, lII and IV 
• 5

  Computers are classified using the following criteria except? 

  回答

  (A)

  cost and portability. 
• 6

  The Slide Rule is accurate to? 

  回答

  (B)

  3-4 decimal places. 
• 7

  Modern computers compared to earlier computers are? 

  回答

  (B)

  faster and smaller. 
• 8

  An input device that converts an image into text is known as? 

  回答

  (A)

  Optical Character Reader. 
• 9

  The type of printer which works on the same principle as a photocopier is? 

  回答

  (B)

  Ink. Jet Printer. 
• 10

  The output of a NAND gate is 1 when? 

  回答

  (A)

  all inputs are 0. 
• 11

  A company known as CIBITO has the following memory modules in four of its computers as shown in Table 1 Use the information in Table 1 to answer questions 11 to 13.

  MEMORY MODULE	MEMORY TYPE	NUMBER OF PINS
  P	SIMM	30
  Q	SIMM	72
  R	SO DIMM	72
  S	DIMM	168

   Table 1

   Which of the memory modules is appropriate for a notebook computer?  

  回答

  (A)

  P 
• 12

  

  use the table above to answer this question

  The memory module with the smallest physical size is? 

  回答

  (A)

  P 
• 13

  A company known as CIBITO has the following modules in four of its computers as shown in Table 1. Use the information in Table 1 to answer this question.

  Memory module	memory type	No of pins
  P	SIMM	30
  Q	SIMM	72
  R	SODIMM	72
  S	DIMM	168

  identify the memory module with the largest physical Size?

  回答

  (D)

  S
• 14

  The scanner and the floppy disk are? 

  回答

  (D)

  input and storage devices respectively.
• 15

  The set of instructions written by computer experts to solve specific task of the user is called? 

  回答

  (B)

  application software. 
• 16

  A Collection of software that allows the computer to operate is called? 

  回答

  (C)

  operating system. 
• 17

  A suite of software that controls and manages the basic operation of a computer is? 

  回答

  (D)

  system software.
• 18

  The Windows PC and the Apple Macintosh are examples of two different? 

  回答

  (C)

   programs. 
• 19

  Machine Language instructions are expressed in? 

  回答

  (A)

  binary. 
• 20

  The following symbols are used in flowcharting except the? 

  回答

  (D)

  close symbol.
• 21

  Three major types of language translators are? 

  回答

  (B)

   assembler, Compiler and interpreter. 
• 22

  . Translate 2m\(^2\) + 3n- 9 as a BASIC arithmetic expression. 

  回答

  (B)

  2 * m ^2 +3 * n - 9 
• 23

  The term compiler in computer programming refers to a? 

  回答

  (D)

  program which translates source program into object program.
• 24

  The IF...THEN statement in BASIC programming is? 

  回答

  (D)

   a conditional branch statement.
• 25

  Flexibility of a good program means? 

  回答

  (A)

  handling of any change(s) without having to rewrite the entire program. 
• 26

  Fibre Optic cable transmits signal in the fom of? 

  回答

  (C)

  Light. 
• 27

  Data transfer can be initiated through the following media except? 

  回答

  (C)

   trunking pipe. 
• 28

  

  The topology represented in figure 1 is? 

  回答

  (A)

  bus topology. 
• 29

  To send a created MS PowerPoint document using email to a user, the document can be added as? 

   

   

   

   

  回答

  (A)

  Attachment. 
• 30

  

  What type of network is represented in Figure 2? 

  回答

  (B)

  Metropolitan Area Network 
• 31

  The major advantage of free software is that it is? 

  回答

  (A)

   free and contains unlimited components. 
• 32

  In MS Excel, the cell that contains the pointer or cursor is called? 

  回答

  (A)

  active cell. 
• 33

  One major difference between paper spreadsheet and electronic spreadsheet is? 

  回答

  (D)

  speed of processing
• 34

  To hold row and column titles in places so that they do not scroll when the user scrolls a worksheet, click the? 

  回答

  (A)

  freeze panes command on the windows menu. 
• 35

  In Microsoft PowerPoint, two kinds of sound effect files that can be added to a presentation are? 

  回答

  (A)

   .wav files and .mid files. 
• 36

  A cell with a red triangle in the top-right comer in a spreadsheet application signifies? 

  回答

  (A)

  an error in the cell. 
• 37

  Spreadsheet packages can be used for?  .

  回答

  (C)

   budgeting and inventory. 
• 38

  Which of the following is true when data maintained in MS Excel workbook is linked to a word document? The word document

   

  回答

  (D)

   contains a reference to the original source application.
• 39

  Data that is copied from an application is stored in the? 

  回答

  (A)

  clipboard. 
• 40

   After several 'save' and 'delete' operations, there remain many scattered areas of data too small to be used productively. This describes?

   

  回答

  (C)

  fragmentation. 
• 41

  The disk operating system will label three hard drives as? 

  回答

  (B)

  C, D and E. 
• 42

  Which of the options labeled I to IV give two stages involved in booting?

  I. Power On self test II. Loading of Operating System IIl. Loading of email IV. Power On Safe Mode

   

  回答

  (A)

   I and Il only 
• 43

  A bit as used in computing in digital communication is? 

  回答

  (C)

  a bin digit. 
• 44

  Multiply 101\(_2\) by 11\(_2\) 

   

   

   

  回答

  (D)

  1111\(_2\)
• 45

  In BCD encoding system, 25, will be represented as? 

  回答

  (C)

  00100101.