WAEC - Computer Studies (2019)

• 1

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

  Відповідь

  (B)

  liveware 
• 2

  The map of Nigeria is an example of ? 

  Відповідь

  (D)

  graphic data
• 3

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

  Відповідь

  (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.

   

  Відповідь

  (C)

  I, lII and IV 
• 5

  Computers are classified using the following criteria except? 

  Відповідь

  (A)

  cost and portability. 
• 6

  The Slide Rule is accurate to? 

  Відповідь

  (B)

  3-4 decimal places. 
• 7

  Modern computers compared to earlier computers are? 

  Відповідь

  (B)

  faster and smaller. 
• 8

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

  Відповідь

  (A)

  Optical Character Reader. 
• 9

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

  Відповідь

  (B)

  Ink. Jet Printer. 
• 10

  The output of a NAND gate is 1 when? 

  Відповідь

  (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?  

  Відповідь

  (A)

  P 
• 12

  

  use the table above to answer this question

  The memory module with the smallest physical size is? 

  Відповідь

  (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?

  Відповідь

  (D)

  S
• 14

  The scanner and the floppy disk are? 

  Відповідь

  (D)

  input and storage devices respectively.
• 15

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

  Відповідь

  (B)

  application software. 
• 16

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

  Відповідь

  (C)

  operating system. 
• 17

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

  Відповідь

  (D)

  system software.
• 18

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

  Відповідь

  (C)

   programs. 
• 19

  Machine Language instructions are expressed in? 

  Відповідь

  (A)

  binary. 
• 20

  The following symbols are used in flowcharting except the? 

  Відповідь

  (D)

  close symbol.
• 21

  Three major types of language translators are? 

  Відповідь

  (B)

   assembler, Compiler and interpreter. 
• 22

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

  Відповідь

  (B)

  2 * m ^2 +3 * n - 9 
• 23

  The term compiler in computer programming refers to a? 

  Відповідь

  (D)

  program which translates source program into object program.
• 24

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

  Відповідь

  (D)

   a conditional branch statement.
• 25

  Flexibility of a good program means? 

  Відповідь

  (A)

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

  Fibre Optic cable transmits signal in the fom of? 

  Відповідь

  (C)

  Light. 
• 27

  Data transfer can be initiated through the following media except? 

  Відповідь

  (C)

   trunking pipe. 
• 28

  

  The topology represented in figure 1 is? 

  Відповідь

  (A)

  bus topology. 
• 29

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

   

   

   

   

  Відповідь

  (A)

  Attachment. 
• 30

  

  What type of network is represented in Figure 2? 

  Відповідь

  (B)

  Metropolitan Area Network 
• 31

  The major advantage of free software is that it is? 

  Відповідь

  (A)

   free and contains unlimited components. 
• 32

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

  Відповідь

  (A)

  active cell. 
• 33

  One major difference between paper spreadsheet and electronic spreadsheet is? 

  Відповідь

  (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? 

  Відповідь

  (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? 

  Відповідь

  (A)

   .wav files and .mid files. 
• 36

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

  Відповідь

  (A)

  an error in the cell. 
• 37

  Spreadsheet packages can be used for?  .

  Відповідь

  (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

   

  Відповідь

  (D)

   contains a reference to the original source application.
• 39

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

  Відповідь

  (A)

  clipboard. 
• 40

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

   

  Відповідь

  (C)

  fragmentation. 
• 41

  The disk operating system will label three hard drives as? 

  Відповідь

  (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

   

  Відповідь

  (A)

   I and Il only 
• 43

  A bit as used in computing in digital communication is? 

  Відповідь

  (C)

  a bin digit. 
• 44

  Multiply 101\(_2\) by 11\(_2\) 

   

   

   

  Відповідь

  (D)

  1111\(_2\)
• 45

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

  Відповідь

  (C)

  00100101.