WAEC - Computer Studies (2022)

• 1

  One-millionth of a second is also referred to as

  Jibu

  (B)

  microsecond
• 2

  Examples of quantitative data type are?

  Jibu

  (A)

  continuous and discrete
• 3

  One difference between data and information is that ?

  Jibu

  (B)

  data are raw facts and figures while information is computed
• 4

  The following options are examples of information except?

  Jibu

  (D)

  plain shape of a rectangle
• 5

  Modem computers Compared to earlier computers are ?

  Jibu

  (D)

  faster and smaller
• 6

  What type of computer would be most suitable for a student who lives in a remote village without constant electricity

  Jibu

  (B)

  Laptop computer
• 7

  EDSAC was produced using a concept known as 

  Jibu

  (D)

  Stored program
• 8

  The process of running more than one program concurrently is known as

  Jibu

  (B)

  multitasking
• 9

   How many binary digits are contained in 10MB of a memory stick?

  Jibu

  (D)

  10 x 1024 x 1024 x 8
• 10

  A student would require the following devices to online application form except?

  Jibu

  (C)

  printer
• 11

  

  use the diagram above to answer questions below

  The logic gate in the diagram above is called a

  Jibu

  (A)

  AND gate
• 12

  

   The logic equation for the logic gate in the figure above is?

  Jibu

  (B)

  Z=A.B
• 13

  

  The part labelled X in the figure above is called?

  Jibu

  (B)

  output unit
• 14

  

  The logic equation for the logic-circuit in the diagram above is?

  Jibu

  (B)

  Z=A.B+C
• 15

  The program that is loaded into a special area on a microprocessor or ROM on a one-time basis and becomes part of the hardware is called?

  Jibu

  (A)

  firmware
• 16

  Thy following programs are general purpose application software except 

  Jibu

  (B)

  payroll system
• 17

  One similarity between be spoke software and application packages is that they are?

  Jibu

  (D)

  meant to be used by computer end users
• 18

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

  Jibu

  (B)

  desk checking
• 19

  The following instructions are guidelines for drawing flowcharts except that?

  Jibu

  (C)

  it should follow a direction of right to left or bottom to top
• 20

   Key skills of a system analyst include the following except

  Jibu

  (C)

  motivational skills
• 21

  The result of the expression 2 * 6 + 2/4 * 2 * 4^2

  Jibu

  (C)

  28
• 22

  Use the QBASIC program below to answer question below

  10 REM Program to calculate product of numbers

  20 CLS

  30 INPUT A

  40 INPUT B

  50 LET PRODUCT=A*B

  60 PRINT PRODUCT

  70 END

   

  The number 10, 20,30, 40, 50, 60 and 70 as stated in the program indicate 

  Jibu

  (D)

  line number
• 23

  he QBASIC statement LETX=Y-3 means

  Jibu

  (C)

  the variable X receives the value of Y less 3
• 24

  

  The part labelled Y in the compiler interface in the diagram represents 

  Jibu

  (C)

  object code
• 25

   The virtual communication platform where many people keep in contact with family and friends is known as 

  Jibu

  (C)

  cyberspace
• 26

  The protocol used for email transmission is known as ?

  Jibu

  (D)

  SMTP
• 27

  

  The signals from Ato modem X in the diagram above are

  Jibu

  (B)

  digital
• 28

  

  what type of network is represented in the diagram above?

  Jibu

  (D)

  wide area network
• 29

  In the URL https://waec.org.ng, the domain name is?

  Jibu

  (A)

  waec.org.ng
• 30

  

  The type of transmission in the part labelled q in the diagram above is called 

  Jibu

  (B)

  full duplex
• 31

  

  The number of entries in the diagram above is 

  Jibu

  (A)

  3
• 32

  The maximum length of a text field in MS Access is?

  Jibu

  (C)

  255
• 33

  One function of operating system is ?

  Jibu

  (D)

  resource allocation
• 34

  

  The shortcut key for the open dialog box in MS Word is ?

  Jibu

  (B)

  Ctrl + F12
• 35

  

  The part of the Corel Draw window labelled II in the diagram above is called?

  Jibu

  (C)

  zoom out
• 36

  Which of the following operations will not run a slide show in MS PowerPoint?

  Jibu

  (A)

  pressing F5
• 37

  What will be the result of writing the formula=year[now[][  + 3 in a worksheet,of a spread sheet,if the current calendar is 14 august ,1960?

  Jibu

  (B)

  14 aug,1963
• 38

  If A is in cell A1 and B is in Cell B1 of a worksheet in a spreadsheet application,write a formula to calculate

  x= \(\frac{A^2 = B{^1/2}}{100}\)

  Jibu

  (A)

  ((A1^2)+(B1^(1/2)))/100
• 39

  The pictorial representation of an object or application in the computer is called?

  Jibu

  (C)

  Icon
• 40

  Deleted items in the computers are temporarily stored in the?

  Jibu

  (C)

  recycle bin
• 41

  The keyboard key combination ALT + F4 in microsoft windows will

  Jibu

  (A)

  close active programmes
• 42

   Select two stages of booting from the following list:

  i. Power on Self Test;

  ii. Loading of Operating System; 

  iii. Loading of e-mails;

  iv.  Start in safe mode.

  iv. Save all active files

  Jibu

  (A)

  I and II only
• 43

  In number system ,base 16 is called ?

  Jibu

  (A)

  hexadecimal
• 44

  Add 127\(_{16}\) to  50A\(_{16}\)

  Jibu

  (C)

  631\(_{16}\)
• 45

  The octal fraction 0.65 converts to binary as 

  Jibu

  (B)

  0.110101
• 46

  Sequential files are?

  Jibu

  (B)

  sorted in a particular order
• 47

  

  The file access method illustrated in the diagram above is called?

  Jibu

  (B)

  indexed access
• 48

  Serial files are 

  Jibu

  (C)

  stored as they come
• 49

  Duplicating copyrighted electronic or digital content without the authors approval is considered?

  Jibu

  (A)

  felonious
• 50

  Ethical practice requires a computer user to 

  Jibu

  (A)

  shutdown properly