2018 WAEC (WASSCE) Computer Studies Past Questions & Answers

Question 1

A  site engineer intends to acquire a computer system. What factors Will he consider if he must choose a notebook computer over a desktop computer?

Accepted Answer

C. Size, convenience and battery life

Answer

A. Size, cost and battery life

Answer

B.  Cost, size and convenience

Answer

D. Cost, convenience and battery life

Question 2

Random file organisation is also known as?

Accepted Answer

A. direct file organisation

Answer

B.  indexed file organisation

Answer

C. serial file organisation

Answer

D. sequential file organisation

Question 3

The process of testing the logic of programs to ensure they give correct result is known as?

Accepted Answer

B. desk checking

Answer

A. algorithm

Answer

C.  flowcharting

Answer

D.  table checking

Question 4

The number 28 in binary is?

Accepted Answer

D. 11100

Answer

A. 1001

Answer

B.  11001

Answer

C. 110011

Question 5

The statement in QBASIC that is used to add data at the end of existing sequential file is?

Accepted Answer

A. APPPEND

Answer

B. CLOSE

Answer

C. INPUT

Answer

D. OUTPUT

Question 6

The conversion of readable data to unreadable codes in order to prevent unauthorised access is known as?

Accepted Answer

B. encryption

Answer

A. authentication

Answer

C. encoding

Answer

D. decryption

Question 7

Arrange the following spreadsheet window parts in a hierarchical order by size: I. worksheet II. cell III. workbook IV. Range

Accepted Answer

A. III, I, IV, II

Answer

B. III, IV, II, I

Answer

C. II, III, IV, I

Answer

D. II, IV, I and II

Question 8

The following components are network interconnecting devices EXCEPT?

Accepted Answer

D. webcam

Answer

A. hub

Answer

B. modem

Answer

C. router

Question 9

Which of the following programs is an application specific?

Accepted Answer

D. Payroll system

Answer

A. CorelDraw

Answer

B.   Microsoft Access   .

Answer

C. Word

Question 10

The common features of formula and function in spread- sheet are: -Entry is preceded by = or + symbol I. - They have fixed formats - They operate with cell addresses - Their results are displayed. Which of the following options is/are true?

Accepted Answer

B.  I, III, IV

Answer

A. I, II, III

Answer

C.  II, III, IV

Answer

D. I, II, III, IV

Question 11

Which of the following options is not a data type?

Accepted Answer

D.  Valid data

Answer

A. Alphabetic data

Answer

B. Alphanumeric data

Answer

C.  Numeric data

Question 12

Figure 1 is a logic gate. Use it to answer the question below. The logic gate represented in Figure 1 is called

Accepted Answer

B. NAND gate

Answer

A. AND gate

Answer

C. NOR gate

Answer

D. OR gate

Question 13

which of the following network cables offers highest data transmission?

Accepted Answer

B. Fibre optic

Answer

A. Coaxial

Answer

C. Telephone line

Answer

D. Twisted pair

Question 14

If you are given the contract, what would be your first step of action?

Accepted Answer

A. Analyse the result

Answer

B. Design a software

Answer

C. Investigate the problem

Answer

D. Maintain the staff

Question 15

The process of restarting the computer system is known as?

Accepted Answer

D. warm booting

Answer

A. cold booting

Answer

B. hard booting

Answer

C. hot bathing

Question 16

Which of the following output devices was common among the computing devices of the 19th century?

Accepted Answer

C. Printer

Answer

A. Monitor

Answer

B. Plotter

Answer

D. Speaker

Question 17

QBASIC keywords do not include?

Accepted Answer

A.  FIND B.

Answer

B. LET C.

Answer

C. REM  D.

Answer

D. STOP.

Question 18

Which of the following options is a biometric data?

Accepted Answer

D. Pattern of eye iris

Answer

A. Gender

Answer

B. Password

Answer

C.  Date of birth

Question 19

The algebraic equation for the AND gate with input variables A and B is?

Accepted Answer

A. X = A.B

Answer

B. X =A/B

Answer

C. X= A-B

Answer

D.  X = A+B

Question 20

The following programs are general-purpose application software except?

Accepted Answer

B. Editor

Answer

A. CorelDraw

Answer

C. Ms Access

Answer

D. MS Word

Question 21

The following are relational operators in QBASIC?

Accepted Answer

C. #

Answer

A.  <

Answer

B. >

Answer

D. =

Question 22

Identify the logic gate in figure 2

Accepted Answer

B. NAND gate

Answer

A. AND gate

Answer

C. NOR gate

Answer

D. OR gate

Question 23

Use the infomation belowto answer questions 42 and 43. As a computer professional, you have just been con- tracted by a school to help them solve the problem they are facing in computing students' results. The school currently runs a manual system. Time and accuracy of the result are the major concerns. What would you advise the school to do?

Accepted Answer

A. Automate the system

Answer

B. Close down the school

Answer

C.  Increase the number of staff

Answer

D. Buy more calculators for the staff

Question 24

The largest computer system in terms of processing power is A?

Accepted Answer

D. super computer

Answer

A. laptop computer

Answer

B. mainframe computer

Answer

C.  minicomputer

Question 25

The major components of a computer system are?

Accepted Answer

C. hardware and software

Answer

A.  fimware and humanware

Answer

B.  hardware and firmware

Answer

D.  software and firmware

Question 26

One megabyte is equivalent to?

Accepted Answer

B. 1024 X 1024 bytes

Answer

A. 1000 X 1024 bytes

Answer

C. 1024 X 1048 bytes

Answer

D. 1000 X 1000 bytes

Question 27

Which of the following options is not an advantage of  linear bus topology?

Accepted Answer

D. Terminators are required at both ends of the

Answer

A.  It requires less cable length

Answer

B. It ensures easy casting

Answer

C. Additional nodes can be connected  easily

Question 28

An icon, a graphic or a text in a document or a webpage that connects to another file or object is called a?

Accepted Answer

A. hyperlink

Answer

B.  domain name

Answer

C. web browser

Answer

D.  web server

Question 29

Warm boot in computing is the same as?

Accepted Answer

D. soft boot

Answer

A. debugging

Answer

B. handshake

Answer

C. hard boot

Question 30

During program execution in the central processing unit, the instruction is interpreted by the?

Accepted Answer

B. control unit

Answer

A.  arithmetic logic

Answer

C. memory unit

Answer

D. registers unit

Question 31

The uses of spreadsheet packages include: 1. -Preparing organisation's logo;   II. - Performing sensitivity analysis; III, - Preparing reports for senior manage- ment; IV. - Preparation of profit forecasts. Which of the following options is true?

Accepted Answer

D. II, Il and IV only

Answer

A. Il and IV only

Answer

B.  Ill and IV only

Answer

C. I, Il and Ill only

Question 32

The file that contains historical record is called a?

Accepted Answer

B.  master file

Answer

A. data file

Answer

C. reference file

Answer

D.  transaction file

Question 33

The pre-computing age device which made use of beads and frames is?

Accepted Answer

A. Abacus

Answer

B. Napier's bone

Answer

C. Liebnitz multiplier

Answer

D.  Burrough's counting device

Question 34

Which of the following charts does not display the X and Y axes?

Accepted Answer

C. Doughnut chart

Answer

A.  Bar chart

Answer

B. Bubble chart

Answer

D. X, Y graph

Question 35

The system unit houses the following components except?

Accepted Answer

A.  plotter

Answer

B. motherboard

Answer

C. floppy disk

Answer

D.  central processing unit

Question 36

The largest component in a spreadsheet is?

Accepted Answer

C. workbook

Answer

A. cell

Answer

B. range

Answer

D. worksheet

Question 37

Data can be defined as?

Accepted Answer

A. raw facts

Answer

B. mixed facts

Answer

C. facts on prints

Answer

D. processed facts

Question 38

Which of the following computer files can be used for updating the master file?

Accepted Answer

D. transaction

Answer

A. date

Answer

B. program

Answer

C. reference

Question 39

A row in a database table is referred to as?

Accepted Answer

D. record

Answer

A.  attribute

Answer

B. data item

Answer

C.  field

Question 40

The speed of data transfer in the computer can be determined in terms of?

Accepted Answer

B. bus speed and bus width

Answer

A. protocols and  bus speed

Answer

C.   bus width and storage media

Answer

D.  bus speed and storage media

Question 41

The ASCII chart control characters using numeric codes ranging from?

Accepted Answer

C. 0 to 127

Answer

A. 0 to 124

Answer

B. 0 to 125

Answer

D.  0 to 128

Question 42

The MS-Windows shortcut keys to initiate warm booting is?

Accepted Answer

B. Ctrl+ Alt + Del

Answer

A. Alt+ f4

Answer

C. Ctrl+Esc

Answer

D. Ctn +Shift + Del

Question 43

The most important system software in a computer system is the?

Accepted Answer

C.  operating system

Answer

A. control program

Answer

B. language translator

Answer

D. utility programs

Question 44

The basic computer operation involves the following except?

Accepted Answer

A. Access

Answer

B. Input

Answer

C. Output

Answer

D.  Process

Question 45

Which of the following components are data communication equipment? I. Scanner ll. Hub lIl. Modem

Accepted Answer

C.   II and IIl only

Answer

A. I and Il only

Answer

B.  I and lll only

Answer

D. I, Il and III

Question 46

The command line prompt of MS-DOS operating system is represented as?

Accepted Answer

C. C:\>

Answer

A. C:>

Answer

B. C:\

Answer

D. C\:>

Question 47

A logic gate contains three input variables. The total possible combination of the input variables is?

Accepted Answer

C. 8

Answer

A. 3

Answer

B. 4

Answer

D. 12

Question 48

The three levels of programming language?

Accepted Answer

C. machine language low level language and high level language

Answer

A.  assembly language, low level language and high level language,

Answer

B. java, C language and pascal

Answer

D. machine language, machine code and assembly language

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