2015 WAEC (WASSCE) Computer Studies Past Questions & Answers

Question 1

Abacus is used for?

Accepted Answer

C. addition and subtraction

Answer

A.  addition

Answer

B. subtraction

Answer

D.  multiplication and division

Question 2

The first stage in program development is problem?

Accepted Answer

B. definition.

Answer

A. analysis.

Answer

C.   solving.

Answer

D.  testing

Question 3

Which of the following networks covers the widest range?

Accepted Answer

D. WAN.

Answer

A. LAN.

Answer

B. MAN.

Answer

C. PAN.

Question 4

The colour palette in CorelDraw allows the user to?

Accepted Answer

D.  choose different pre-set colour palettes.

Answer

A.  arrange colour.

Answer

B. draw in colour.

Answer

C. pick colour tool.

Question 5

Use the MS-Excel below to answer this question. A B C D 1 BOOKS SUPPLIED TO SENIOR HIGH SCHOOL 2 FORMS MATHS ICT ENGLISH LANGUAGE 3 SHSI 2456 6580 5678 4 SHSII 3450 4009 4400 5 SHSIII 8765 4500 9000 The number of cells that contain data in row 1 is?

A. 1.
B. 3.
C. 4.
D.5.

Show answer

Answer: A. 1.

Get a step-by-step AI explanation in the app Get a step-by-step AI explanation in the app

Accepted Answer

A.  1.

Answer

B.   3.

Answer

C.   4.

Answer

D. 5.

Question 6

Use the Logic gate above to answer this question. When signals X= 0 and Y= 1, signal Z is?

Accepted Answer

C. 1

Answer

A. 0.1

Answer

B. 0

Answer

D. 0+1

Question 7

The device through which the main components of the computer communicate with each other is called?

Accepted Answer

D. system bus

Answer

A.  keyboard

Answer

B.  memory

Answer

C. light pen

Question 8

In hexadecimal number system, B, D and F represent which of the following decimal numbers?

Accepted Answer

A.  11, 13 and 15 respectively.

Answer

B.  12, 14 and 15 respectively.

Answer

C.  13, 14 and 15 respectively.

Answer

D.  14, 16 and 17 respectively

Question 9

A pictorial representation of program flow is referred to as?

Accepted Answer

B. flow chart.

Answer

A. algorithm

Answer

C. process mapping.

Answer

D.  pseudo code

Question 10

A high level language can be converted to a machine language using?

Accepted Answer

A. a compiler.

Answer

B. an editor.

Answer

C.  a utility program.

Answer

D. an operating system

Question 11

The term bus' width in data transfer refers to the?

Accepted Answer

B. size of the data movement.

Answer

A. number of wires in the bus.

Answer

C.  number of bits of information the RAM can send to the CPU at the same time.

Answer

D. number of wires in the bus that carry information to the processor at a time

Question 12

An example of a specific purpose application package is the?

Accepted Answer

A.  payroll program.

Answer

B.  database program.

Answer

C. spreadsheet program.

Answer

D.  word processing program

Question 13

The part of the computer that holds the data and pro- grams for CPU processing is the?

Accepted Answer

C. Random Access Memory.

Answer

A. Address.

Answer

B.  Register:

Answer

D. Read Only Memory

Question 14

In order to get to the symbol dialog box in MS-Word click on the?

Accepted Answer

B. Insert tab.

Answer

A. Home tab.

Answer

C.  Page Lay- out tab.

Answer

D. View tab.

Question 15

The keyboard command used to copy text in Ms-Word document is?

Accepted Answer

C. Ctrl + C.

Answer

A. Shift+G.

Answer

B.  Ctrl+N.

Answer

D.  Ctrl+ Alt + C.

Question 16

In a network, the workstation is usually.connected to the?

Accepted Answer

D. Switch.

Answer

A. Hub.

Answer

B. Modem.

Answer

C. Router.

Question 17

.The line segment that describes the contents of the message when sending an e-mail is?

Accepted Answer

C.  Subject.

Answer

A.  Cc.

Answer

B. Contents.

Answer

D. To.

Question 18

The computer hardware is made up of system unit and?

Accepted Answer

B. peripheral

Answer

A.  motherboard

Answer

C.  control unit

Answer

D.  central processing unit

Question 19

The computer memory is, measured in?

Accepted Answer

B. bytę

Answer

A.   bit

Answer

C.  hertz

Answer

D.   nibble

Question 20

Which of the following is not a network device?

Accepted Answer

C. Port

Answer

A.  Hub

Answer

B. Modem

Answer

D. Router

Question 21

Which of the following is not a mobile input device?

Accepted Answer

D. Scanner

Answer

A. Joystick

Answer

B. Light pen

Answer

C.  Mouse

Question 22

When browsing on the internet, a possible reason for. the message "page not found" is that?

Accepted Answer

D.  a connection between the client and server has been lost.

Answer

A.  the weather is hot.

Answer

B.  the web browser is fast.

Answer

C. multiple web pages are loading at the same time.

Question 23

The operating system, translators and utility programs are examples of?

Accepted Answer

D.   system software.

Answer

A.  application software.

Answer

B. customized Software.

Answer

C. network software.

Question 24

Data loss in a computer cannot be prevented by the use of?

Accepted Answer

D. password.

Answer

A. antivirus.

Answer

B. backup.

Answer

C. flash drive.

Question 25

The hardware of a computer does not consist of?

Accepted Answer

D. windows

Answer

A. casing

Answer

B.  mouse

Answer

C. peripherals

Question 26

Which of the following is not a function of the operating system?

Accepted Answer

A. Analysis of the computer components.

Answer

B. Ensuring the proper functioning of hardware.                    .

Answer

C. Maintenance of directories in external storage.

Answer

D. Opening and closing files.

Question 27

Computer ethics are important because they?

Accepted Answer

C. address piracy and comportment issues.

Answer

A. ensure identity theft.

Answer

B.  regulate the privacy of messages only.

Answer

D.  prevent copyright infringement on discretional basis.

Question 28

The conversion of 11001$_2$, to base ten equals?

Accepted Answer

B.   25.

Answer

A.  20.

Answer

C.   28.

Answer

D.  30

Question 29

The shortcut command used in restarting a computer is?

Accepted Answer

D. Alt+Ctrl+Del.

Answer

A.  Ctrl+ S.

Answer

B.  Ctrl+0.

Answer

C.  Del+Alt+S.

Question 30

In word processing, an efficient way to move the second paragraph and place it after the fourth paragraph is?

Accepted Answer

C. cut and paste.

Answer

A.  copy and paste.

Answer

B. copy, cut and paste.

Answer

D. cut, copy and paste.

Question 31

The main difference between a laptop and a desktop is that, a laptop?

Accepted Answer

D. contains high capacity battery that powers for extensive period while desktop has not.

Answer

A. does not have mouse while a desktop has

Answer

B.  uses USB port while desktop uses parallel port

Answer

C.   can be connected to the internet while desktop cannot

Question 32

Which of the following is the main advantage of intellectual property right?

Accepted Answer

C.  Encouragement of innovations.

Answer

A. Discouragement of sharing.

Answer

B.  Discovery of brilliant persons.

Answer

D. maximization of profit.

Question 33

The memory unit of the computer belongs to the?

Accepted Answer

D. system unit

Answer

A. control unit

Answer

B.  input device

Answer

C. output device

Question 34

Which of the following is a valid e-mail address?

Accepted Answer

B.  waeconline@yahoo.co.uk

Answer

A.  www.itbeginswithu.org

Answer

C.  www.waeconline.org

Answer

D. www.fine.gov.ng

Question 35

An example of a programming language that uses mnemonic codes is?

Accepted Answer

A. Assembly program.

Answer

B.  BASIC program.

Answer

C.   COBOL program.

Answer

D.   FORTRAN program.

Question 36

X, Y and Z respectively, represents?

Accepted Answer

C.   output, input and output signals.

Answer

A.  input, output and input signals.

Answer

B.  output, output and input signals

Answer

D.  input, input and output signals.

Question 37

The use of satellite to transmit signal information to the earth is enabled with the use of?

Accepted Answer

B. GPS.

Answer

A.  GSM.

Answer

C. POS.

Answer

D. WAN

Question 38

Output devices in a computer are those devices that send?

Accepted Answer

A. results to the memory of the computer

Answer

B.  processed data and instructions into the computer

Answer

C. in data and instructions into the computer

Answer

D. data and instructions into the memory of the computer

Question 39

9$_{10}$ is equivalent to X$_8$, where X is?

Accepted Answer

C.   11.

Answer

A. 7.

Answer

B.   10.

Answer

D.  12.

Question 40

If the output signal of any logic gate is fed into an inverter, the results is?    .

Accepted Answer

C. the inverse of the output signal

Answer

A.  NOT gate

Answer

B. Nor gate

Answer

D. the same as the output signal

Question 41

Which of the following statements is true of free software? It

Accepted Answer

D.  is a licensed software with permission to copy freely.

Answer

A.  can be borrowed freely.

Answer

B.  is a low-cost software:

Answer

C.  is a free unlicensed software.

Question 42

Which of the following statements is true of encryption? It

Accepted Answer

B. provides security of varying reliability.

Answer

A. provides complete privacy.

Answer

C. makes messages un- readable by the recipient.

Answer

D.  permits an individual to have access to another person's message.

Question 43

Charles Babbage was the first to?

Accepted Answer

B. invent analytical engine

Answer

A. invent slide rule

Answer

C.   make census machine

Answer

D. make use of the punched card

Question 44

The computer keyboard key(s) that a user presses to move to the beginning of a current line of text is/are the?

Accepted Answer

B. Home key.

Answer

A. Enter key.

Answer

C. Ctrl +B keys.

Answer

D.  Ctrl+ Home keys.

Question 45

Which of the following devices is not a micro computer?

Accepted Answer

B. EDVAC

Answer

A. Desktop

Answer

C.  Laptop

Answer

D.  Notebook

Question 46

Which of the following items changes shape depending on the task being performed?

Accepted Answer

D.  Mouse pointer

Answer

A. Ribbon

Answer

B. Active tab

Answer

C.  Insertion point

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