2019 WAEC (WASSCE) Computer Studies Past Questions & Answers

Question 1

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

Accepted Answer

B. liveware

Answer

A. software

Answer

C. hardware

Answer

D. firmware

Question 2

The topology represented in figure 1 is?

Accepted Answer

B. mesh topology.

Answer

A. bus topology.

Answer

C.  ring topology.

Answer

D. star topology.

Question 3

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

Accepted Answer

B.  platforms.

Answer

A.  input devices.

Answer

C.   programs.

Answer

D. storage devices.

Question 4

Computers are classified using the following criteria except?

Accepted Answer

A. cost and portability.

Answer

B.  data representation and purpose.

Answer

C. size and speed.

Answer

D. speed and storage.

Question 5

Effects of file insecurity include the following except?

Accepted Answer

C. encrypted data

Answer

A. virus infection.

Answer

B. file corruption.

Answer

D. data loss.

Question 6

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

Accepted Answer

C. Laser jet Printer.

Answer

A. Dot Matrix Printer.

Answer

B. Ink. Jet Printer.

Answer

D. Thermal Printer.

Question 7

One major difference between paper spreadsheet and electronic spreadsheet is?

Accepted Answer

D. speed of processing

Answer

A. a management of columns.

Answer

B. headings from formatting.

Answer

C.  arrangement of rows.   .

Question 8

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

Accepted Answer

A. Optical Character Reader.

Answer

B. Optical Code Reader.

Answer

C. Optical Display Reader.

Answer

D. Optical Mark Reader.

Question 9

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

Accepted Answer

A.  .wav files and .mid files.

Answer

B.   .wav files and .gif files.

Answer

C.  .wav files and jpg files.

Answer

D.  jpg files and.gif files.

Question 10

Machine Language instructions are expressed in?

Accepted Answer

A. binary.

Answer

B. decimal.

Answer

C.  hexadecimal.

Answer

D. octal.

Question 11

Modern computers compared to earlier computers are?

Accepted Answer

B. faster and smaller.

Answer

A. faster and larger.

Answer

C.  larger and stronger.

Answer

D. Iess reliable

Question 12

Data transfer can be initiated through the following media except?

Accepted Answer

C.  trunking pipe.

Answer

A. coaxial cable.

Answer

B. fibre cable.

Answer

D. twisted pair cable.

Question 13

. Translate 2m$^2$ + 3n- 9 as a BASIC arithmetic expression.

Accepted Answer

B. 2 * m ^2 +3 * n - 9

Answer

A. 2 * m * 2 + 3 * n - 9

Answer

C. 2 * 2 * m + 3 * n - 9

Answer

D. 2 * m * m * n + 3 - 9

Question 14

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

Accepted Answer

A. clipboard.

Answer

B.  driver.

Answer

C. prompt.

Answer

D. terminal.

Question 15

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.

Accepted Answer

C. I, lII and IV

Answer

A. I, II and lll only

Answer

B. I, Il and IV only

Answer

D. II, III and IV only

Question 16

A bit as used in computing in digital communication is?

Accepted Answer

C. a bin digit.

Answer

A. a decimal digit.

Answer

B. an octal digit.

Answer

D. .a hexadecimal digit.

Question 17

The following symbols are used in flowcharting except the?

Accepted Answer

D. close symbol.

Answer

A.  terminal symbol.

Answer

B. process symbol.

Answer

C.  input/output symbol.

Question 18

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

Accepted Answer

A. freeze panes command on the windows menu.

Answer

B. hold titles command on the edit menu.

Answer

C.  split command on the windows menu.

Answer

D.  show grid command on the windows menu.

Question 19

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

Accepted Answer

D.  a conditional branch statement.

Answer

A. a transfer of control.

Answer

B.   used to redirect a statement.

Answer

C. used to eliminate the need for prompting each INPUT statement.

Question 20

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

Accepted Answer

B.  a comment associated with the cell.

Answer

A. an error in the cell.

Answer

C.  that the font colour for the text in the cell is red.

Answer

D. that a formula cannot be entered into the cell.

Question 21

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

Accepted Answer

C. fragmentation.

Answer

A. utilization.

Answer

B. protection.

Answer

D. backing up.

Question 22

The output of a NAND gate is 1 when?

Accepted Answer

C.  any of the input is 0.

Answer

A. all inputs are 0.

Answer

B.  all inputs are 1.

Answer

D. any of the input is 1.

Question 23

A computer program that gathers information about a person or organization without their knowledge or consent is known as?

Accepted Answer

D.  Spyware.

Answer

A.  Adware.

Answer

B. Time Bomb.

Answer

C.  Malware.

Question 24

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

Accepted Answer

A. active cell.

Answer

B. current cell.

Answer

C. default cell.

Answer

D. passive cell.

Question 25

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

Accepted Answer

D. system software.

Answer

A. application Software.

Answer

B. management system.

Answer

C. software package.

Question 26

Three major types of language translators are?

Accepted Answer

B.  assembler, Compiler and interpreter.

Answer

A. assembler, compiler and editor.

Answer

C. compiler, debugger and editor.

Answer

D. debugger, assembler and interpreter.

Question 27

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

Accepted Answer

A. Attachment.

Answer

B. Draft.

Answer

C.  Reply.

Answer

D. Chat.

Question 28

The Slide Rule is accurate to?

Accepted Answer

B. 3-4 decimal places.

Answer

A.  1-2 decimal places.

Answer

C. 5 decimal places.

Answer

D. 6 decimal places.

Question 29

Fibre Optic cable transmits signal in the fom of?

Accepted Answer

C. Light.

Answer

A. sound.

Answer

B. electricity.

Answer

D. microwave

Question 30

Which of the file organization methods can be accessed both randomly and sequentially?

Accepted Answer

B.  Indexed sequential files

Answer

A. Direct files

Answer

C. Random files

Answer

D.  Sequential files

Question 31

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

Accepted Answer

A.  I and Il only

Answer

B. I and III only

Answer

C.  Il and IV only

Answer

D.  Ill and IV

Question 32

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

Accepted Answer

D.  contains a reference to the original source application.

Answer

A.  cannot be edited.

Answer

B. must contain a hyperlink.

Answer

C. contains a copy of the actual data.

Question 33

What type of network is represented in Figure 2?

Accepted Answer

B. Metropolitan Area Network

Answer

A.  Local Area Network

Answer

C. Personal Area Network

Answer

D. Wide Area Network

Question 34

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

Accepted Answer

B. application software.

Answer

A.  operating system.

Answer

C.  system software.

Answer

D.  utility software

Question 35

The following actions are sources of breaches in computing except?

Accepted Answer

C.  piracy.

Answer

A. carelessness

Answer

B. hackers' threat.

Answer

D. viruses.

Question 36

The scanner and the floppy disk are?

Accepted Answer

D. input and storage devices respectively.

Answer

A. both input devices.

Answer

B. both output devices.

Answer

C.  input and output devices respectively.

Question 37

The map of Nigeria is an example of ?

Accepted Answer

D. graphic data

Answer

A. alphabetic

Answer

B.  audio data

Answer

C. biometric data

Question 38

The major advantage of free software is that it is?

Accepted Answer

C.  licensed and can be copied by anyone.

Answer

A.  free and contains unlimited components.

Answer

B. licensed and available always.

Answer

D. superior in quality but not robust.

Question 39

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

Accepted Answer

C. operating system.

Answer

A.  general-purpose software.

Answer

B. utility software.

Answer

D. specific software

Question 40

The term compiler in computer programming refers to a?

Accepted Answer

D. program which translates source program into object program.

Answer

A. key punch operator of the computer.

Answer

B. person who compiles source programs.

Answer

C. person who writes the computer programming codes.

Question 41

The disk operating system will label three hard drives as?

Accepted Answer

B. C, D and E.

Answer

A.    A, B and C.

Answer

C. B, C and D

Answer

D. F, G and H.

Question 42

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

Accepted Answer

C. 00100101.

Answer

A. 01100101

Answer

B. 01010110.

Answer

D. 0101001.

Question 43

Flexibility of a good program means?

Accepted Answer

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

Answer

B.  the length of processing time and memory to process the instruction.

Answer

C. the program has to be broken down into a number of sub-tasks.

Answer

D.  the program should work for two similar tasks in the same domain.

Question 44

Multiply 101$_2$ by 11$_2$

Accepted Answer

D. 1111$_2$

Answer

A. 1001$_2$

Answer

B. 1011$_2$

Answer

C. 1110$_2$

Question 45

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

Accepted Answer

A. 00010011.

Answer

B. 00101100.

Answer

C. 0010110.

Answer

D. 00100100.

Question 46

Spreadsheet packages can be used for?      .

Accepted Answer

C.  budgeting and inventory.

Answer

A. database and painting.

Answer

B.  drawing and painting.

Answer

D. word processing and drawing

Question 47

Password reset disk should be created?

Accepted Answer

B. once only.

Answer

A.  every time the user changes password.

Answer

C. only when the user forgets the password.

Answer

D.  twice only

2019 WAEC (WASSCE) Computer Studies Past Questions

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