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WAEC COMPUTER STUDIES 2025

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Question 1 of 50
1. Question
A system is described as a
- collection of static hardware components
- digital means of solving problems
- method of computerization.
- set of objects connected to form a whole unit.
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Question 2 of 50
2. Question
One method of obtaining data is through
- calculation
- conversion
- observation
- transmission.
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Question 3 of 50
3. Question
The number of B & F is written in
- binary system.
- decimal system.
- hexadecimal system.
- octal system.
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Question 4 of 50
4. Question
One difference between a desktop computer and a laptop computer is that
- laptop computer can be connected directly to the Internet through WiFi but desktop computer can only be connected through Ethernet
- contains high capacity battery that powers it for an extensive period while desktop computer mainly uses UPS for alternative power source.
- does not support the use of mouse while desktop computer supports the use of mouse.
- uses only serial ports for all connections while desktop computer uses only parallel ports for all connections.
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Question 5 of 50
5. Question
A mechanical device that allows the operation of multiplication through repeated addition is the
- Jacquard's Loom.
- Pascaline.
- Slide Rule.
- Stepped Reckoner.
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Question 6 of 50
6. Question
Which of the following statements about the Slide Rule are true? I. Multiplication that goes off the slide can be corrected by resetting the slide. II. Operations of addition can be carried out by directly adding two or more numbers together on the slide. III. Logarithm is used to transform the operations of multiplication and division to addition and subtraction.
- I and II only
- I and III only
- II and I only
- I, II and III
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Question 7 of 50
7. Question
The following features distinguish the supercomputer from other types of computer except
- high processing speed.
- number of users connected at once.
- physical size.
- small memory capacity.
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Question 8 of 50
8. Question
Which of the following statements are true about pointing devices? I. Device has buttons used to select objects. II. Device moves an onscreen pointer to allow user select objects. III. Older types of the device used laser, an optical technology that tracks movements with light while newer types of the device use ball only. IV. User slides device along a flat surface to move pointer around the screen.
- O, II and III only
- I, II and IV only
- I, II and IV only
- I, II, III and IV.
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Question 9 of 50
9. Question
Which of the following logic devices is a non-equivalent gate?
- AND gate
- EX-NOR gate
- EX-OR gate
- NOR gate
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Question 10 of 50
10. Question
Compute the value of the output Z in Figure 1 using the values of X and Y given.
- 1110
- 1000
- 1
- 111
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Question 11 of 50
11. Question
If the input variable X in Figure 1 is passed through the device Figure 2 before going into the logic gate in Figure 1, what will be the output Z ?
- 1001
- 100
- 1101
- 1111
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Question 12 of 50
12. Question
If the input variable Y in Figure 1 is passed through the device in Figure 2 before going into the logic gate in Figure 1, compute the output at
- 11010
- 100
- 10
- 1
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Question 13 of 50
13. Question
Which of the following memory capacities is the largest?
- 1 TB
- 100 GB
- 500 MB
- 960 KB
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Question 14 of 50
14. Question
Which one of the following statements is true about logic gates?
- The output of AND gate is low if both inputs are high.
- The output of AND gate is high if both or either of the inputs is low.
- The output of NOT gate is high if the input is low.
- The output of OR gate is low if both inputs are high.
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Question 15 of 50
15. Question
A set of instructions written in the language of the computer to solve user's problem is called
- assembler.
- byte
- pseudocode.
- software.
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Question 16 of 50
16. Question
In computer operation, loading and starting of application programs is carried out by
- device drivers.
- embedded system.
- operating system.
- peripheral devices.
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Question 17 of 50
17. Question
The operating system is responsible for
- checking the effect of virus on the computer.
- creating tasks for computer programmers.
- making the most efficient use of the computer hardware.
- teaching new skills to computer users through videos.
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Question 18 of 50
18. Question
Which of the following statements explains the function of utility software?
- Converts source code to object code
- Enables hardware to communicate with the computer
- Helps to clean disk space and manages installation of applications
- Helps to improve the functionality of hardware devices
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Question 19 of 50
19. Question
The clear and precise step-by-step procedure of solving a particular problem is called
- algorithm.
- flowchart.
- interpretation.
- programming.
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Question 20 of 50
20. Question
A program written in source code can be converted to object code by
- code converter.
- language translator.
- operating system.
- utility software.
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Question 21 of 50
21. Question
The process of searching for errors and eliminating them in a computer program is called
- compilation.
- debugging.
- execution.
- normalization.
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Question 22 of 50
22. Question
The main function of the statement in line 20 in the QBASIC program above is to
- assign variable names before the execution of the current program.
- create memory location for all the variables that will be declared in the current program.
- erase previously printed output on the screen before the output of the current program.
- indicate that the current program is compiler based.
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Question 23 of 50
23. Question
Which one of the following statements is incorrect about the rules of flowcharting?
- All symbols of flowchart are connected with Terminal Box (to show the logical connection between them).
- All flowchart process symbols are connected with on page connector to show the flow of operation
- All flowcharts start with a Start Box and end with a Decision Box
- The flow of Control must always enter an object from top to bottom
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Question 24 of 50
24. Question
The major difference between low level programming languages and high level programming languages is that
- high level languages are less memory efficient while low level languages are more memory efficient.
- high level languages will not need a translator but low level languages will do.
- low level languages are slower while high level languages are faster.
- low level languages are interpreted while high level languages are assembled.
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Question 25 of 50
25. Question
In computer programming, source codes are usually translated to intermediate codes in order to
- avoid the need for full native compiler for every new machine that will run the
- change the analysis portion for different programming compilers.
- prevent modification of the program source code by unauthorized persons.
- prevent synthesis part of the compiler from changing for any target machine.
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Question 26 of 50
26. Question
The set of rules by which communication takes place over a network is called
- connectivity.
- ethics
- protocol.
- topology.
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Question 27 of 50
27. Question
Which one of the following pairs contains types of network topology ?
- token and mesh
- star and token
- ring and bus
- bus and node
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Question 28 of 50
28. Question
An advantage of using Computer Aided Manufacturing in car manufacturing industry is that
- cost of equipment is low.
- equipment does not require close supervision.
- pollution is reduced.
- products follow consistent standards.
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Question 29 of 50
29. Question
The Transmission Control Protocol
- Internet Protocol (TCP
- IP) is used to
- interconnect devices on the Internet.
- retrieve email from a mail server.
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Question 30 of 50
30. Question
One difference between intranetworking and internetworking is that
- intranetworking is more secure compared to internetworking.
- intranetworking has unlimited coverage compared to internetworking.
- intranetworking is publicly owned while internetworking is privately owned.
- intranetworking can be accessed by everyone while internetworking is accessible to the staff of an organization only.
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Question 31 of 50
31. Question
Which one of the following statements is true about email client?
- It is a server which stores email messages.
- It is a program which enables users to send and receive email.
- It is a person using email services to serve the public.
- It is a computer which provides email services to users.
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Question 32 of 50
32. Question
A record in a database can be identified using
- a key field.
- an attribute key.
- an entity relationship.
- an object identifier.
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Question 33 of 50
33. Question
Which one of the following software can be used by a company accountant to prepare staff payment?
- Microsoft Word.
- Microsoft Publisher.
- Microsoft PowerPoint.
- Microsoft Excel.
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Question 34 of 50
34. Question
In MS Access, the first object to be created which will enable user to create or use other objects is a
- Form.
- Macro.
- Report.
- Table.
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Question 35 of 50
35. Question
The Microsoft Excel menu bar icon in Figure 3 represents a command used to
- change the row height or column width, organize sheets, protect or hide cells.
- continue a series or pattern into neighbouring cells in any direction.
- remove the selection and put it on the clipboard so that user can paste it somewhere else.
- wrap extra-long text into multiple lines to allow a user view all of it.
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Question 36 of 50
36. Question
The CorelDraw Toolbox object in Figure 4 is a select and transform objects used to
- select and transform objects.
- edit the shape of objects.
- draw lines and curves.
- change the magnification level in drawing window.
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Incorrect
Question 37 of 50
37. Question
Which one of the following statements is true about the Slide Sorter View in Microsoft PowerPoint?
- Only the texts of all slides are shown.
- Preview of presentation takes place.
- Slide time appears on the screen.
- Thumbnail versions of all slides are arranged.
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Incorrect
Question 38 of 50
38. Question
Arrange the following steps in the correct order of creating queries in Microsoft Access.
I. Choose the tables to include in the query.
II. Choose the fields to include and adjust the criteria.
III. Click the CREATE > Query Design button on the ribbon.
IV. Click the RUN button or switch to view the criteria.
- I, II, III, IV
- I, III, IV, II
- I, II, IV, III
- III, I, II, IV
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Question 39 of 50
39. Question
A small picture or object that represents a file, program, webpage or command in windows is called
- a taskbar.
- a toolbar.
- an icon.
- an image.
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Question 40 of 50
40. Question
The two main types of user interface are
- visual user interface and command driven interface.
- soft user interface and graphical user interface.
- graphical user interface and visual user interface.
- graphical user interface and command driven interface.
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Question 41 of 50
41. Question
To initiate the startup process, the BIOS requires
- date, hardware status and system configuration.
- date, time and system configuration.
- date, time, data file and hardware status.
- date, time, hardware status and text file.
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Question 42 of 50
42. Question
A desktop computer is switched on and the monitor displays an error message which reads "No input signal". The likely cause of this error is
- defective monitor.
- disconnected VGA cable.
- low memory.
- power failure.
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Question 43 of 50
43. Question
The parts of the EBCDIC are
- nibbles and bytes.
- strings and integers.
- words and numbers.
- zone bits and numeric bits.
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Question 44 of 50
44. Question
The binary number can be written in denary as
- 25
- 37
- 45
- 211
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Question 45 of 50
45. Question
Convert 70 from base ten to octal.
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Question 46 of 50
46. Question
Backing up of computer files is the process of
- updating files in the computer main storage area.
- storing extra copy of files in the main memory of the computer.
- storing extra copy of files in an external storage location.
- storing extra copy of files on the computer main storage area.
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Question 47 of 50
47. Question
The file structure is represented systematically in ascending order as
- data--> field --> record--> file.
- record --> data --> field --> file.
- field --> record --> data --> file.
- file --> record --> field --> data.
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Question 48 of 50
48. Question
Which of the following statements supports the goals of data backup? I. Need for duplication. II. Need for future reference. III. Protection against data loss.
- I and II only
- I and III only
- II and III only
- I, II and III
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Question 49 of 50
49. Question
The unauthorized use of computer and network resources is known as
- hacking.
- phishing.
- piracy.
- spamming.
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Question 50 of 50
50. Question
Poor implementation of network or lack of ICT policies may result to
- phishing.
- security breach.
- spamming.
- virus infection.
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WAEC COMPUTER STUDIES 2025

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