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WAEC DATA PROCESSING 2025

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Question 1 of 40
1. Question
The Difference Engine was developed by
Blaise Pascal
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Charles Babbage
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Herman Hollerith
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John Von Neumann
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Question 2 of 40
2. Question
Convert to a number in binary

.
101001011
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101101010
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101000001011
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101100001010
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Question 3 of 40
3. Question
Audio data are produced from
animations
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graphics
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pictures
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sounds.
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Question 4 of 40
4. Question
Which of the following variables is an example of numeric data?
568
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B2
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#10.00
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Twenty-five
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Question 5 of 40
5. Question
The generation of computers in which transistor was first introduced is the
fifth generation
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fourth generation
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second generation
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third generation
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Question 6 of 40
6. Question
One application of ICT in medicine is
Computer Aided Learning
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Computer Aided Manufacturing
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Computerized Axial Tomography
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Optical Character Recognition.
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Question 7 of 40
7. Question
Which one of the following reasons justifies the prevalence of Personal Digital Assistance devices? They
are light weight and are very expensive
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are very portable and can be used everywhere
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have limited capabilities when compared to desktop and laptop computers
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have small keyboard for input operation
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Question 8 of 40
8. Question
Which one of the following actions can be achieved by right-clicking a computer mouse?
Closing of the current windows
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Display of dialog box
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Minimizing of active windows
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Opening of contextual menus
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Question 9 of 40
9. Question
The manipulation of digitized information by computer or other digital electronic equipment is known as
data collation
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data mining
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information gathering
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information processing
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Question 10 of 40
10. Question
Which one of the following statements does not explain information processing?
Act of saving document
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Changing of information detectable by an observer
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Conversion of raw data into information
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Process that describes everything that happens to a piece of information
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Question 11 of 40
11. Question
The part labelled X in Figure 1. is called
analysis
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evaluation
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feedback
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retreat
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Question 12 of 40
12. Question
Which one of the following gadgets allows the transmission of both visual and audio information?
Facsimile
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Radio
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Television
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Walkie-Talkie
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Question 13 of 40
13. Question
The underlying technology in the network connection in Figure 2 is called
Bluetooth
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Ethernet
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Laser jet
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Optical Fibre
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Question 14 of 40
14. Question
One limitation of the network type in Figure 2 is that
cost of maintenance is high
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distance covered is short
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resources that can be shared are selective
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weather can affect the rate of data sharing
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Question 15 of 40
15. Question
The interface in Figure 3 is used for
creating new sites
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creating portable documents
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sending and receiving e-mails.
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sending and receiving SMS.
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Question 16 of 40
16. Question
The part labelled III in Figure 3 is used for
keeping draft portable documents
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keeping unfinished sites
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saving unsent e-mails.
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saving unsent SMS.
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Question 17 of 40
17. Question
What happens when the Shift key is pressed down while deleting a file from the computer in windows? The file is
uninstalled from the computer
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permanently deleted from the computer
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deleted and sent to the Recycle bin.
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selected and kept in the clipboard.
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Question 18 of 40
18. Question
A user who was typing a document in portrait orientation decided to complete the next few pages in landscape orientation.
Which one of the following options illustrates the correct order of steps the use must follow by clicking on the labelled parts so achieve this?
I, III and V
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I, IV and V
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II, III and V
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II, IV and V
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Question 19 of 40
19. Question
Which one of these options gives the correct order of steps to revert to portrait orientation after typing in landscape orientation for a while?
I, III and V
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I, IV and V
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II, III and V
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II, IV and V
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Question 20 of 40
20. Question
What happens when a user clicks on the Microsoft Excel menu bar icon shown in Figure 5?
A copy of the selection is put on the clipboard
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A label that spans multiple columns is created
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Content on the clipboard is added to the insertion point
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Selected range of cells is quickly converted to a table with its own style
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Question 21 of 40
21. Question
To add a new row above EKITI on the MS Excel interface shown in Figure 6, the user would right-click on
cell A5 and then click on insert.
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cell A7 and then click on insert.
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row 5 and then click on insert.
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row 6 and then click on insert
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Question 22 of 40
22. Question
which one of the following points is not considered when designing a data base in microsoft acess ?deterrmine
how forms will be used
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how tables will be related
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the data needed
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the purpose of the database
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Question 23 of 40
23. Question
Tables in Microsoft Access are created using the following methods except
Datasheet view.
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Design View.
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Table insertion.
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Table wizard.
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Question 24 of 40
24. Question
The keyboard shortcut for adding a new slide to Microsoft PowerPoint application is
Ctrl + H.
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Ctrl + M.
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Alt + H.
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Alt + M.
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Question 25 of 40
25. Question
An example of web design software is
CSS.
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MS Outlook.
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MS Publisher.
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SPSS.
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Question 26 of 40
26. Question
The part labelled VII in Figure 7 is used to
shape objects.
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select and transform objects.
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draw lines and curves.
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create texts.
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Question 27 of 40
27. Question
The erratic movement of the mouse pointer is usually caused by
bad connection.
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dirty mouse ball.
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driver error.
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hardware failure.
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Question 28 of 40
28. Question
The suitable method of removing particles from the keyboard is by
cleaning with dripping wet cloth.
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cleaning with iron brush.
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using compressed air.
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using hot air.
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Question 29 of 40
29. Question
Which one of the following statements is true about preventing phishing?
Ensure that antivirus is updated regularly
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Do not click on links in e-mails from unknown sources
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Do not download from untrusted sites
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Use a strong password at all times
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Question 30 of 40
30. Question
Preventive maintenance measures in the computer room include the following except
good ventilation.
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maintaining dust-free environment.
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proper illumination.
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the use of rugs on the floor.
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Question 31 of 40
31. Question
When cleaning the computer system, it is advisable to
restart the computer first.
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turn off the computer and disconnect from power source.
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use antiglare cover to protect the screen.
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use multimeter tester for earthing
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Question 32 of 40
32. Question
A system analyst is a professional who
designs flowcharts.
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designs and implements new computer-based solutions.
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trains computer users on new solutions.
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writes complex computer programs.
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Question 33 of 40
33. Question
Which one of the following programs is not a type of virus?
Boot sector virus
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Logic bomb
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Polymorphic virus
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Trojan horse
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Question 34 of 40
34. Question
The computer virus accesses the user's computer and waits for a trigger during the
dormant phase.
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execution phase
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propagation phase.
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trigger phase.
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Question 35 of 40
35. Question
The SQL constraint used to ensure the accuracy and consistency of data in a relational database is called
default constraint.
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index constraint.
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integrity constraint.
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unique constraint
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Question 36 of 40
36. Question
To create a one-to-one relationship in database, it is necessary that
both primary and foreign key fields should have multiple key index.
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both primary and foreign key fields should have unique key index
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only the foreign key field should have a unique index.
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only the primary key field should have a unique index.
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Question 37 of 40
37. Question
An advantage of manual file over computer file is that
it is more efficient.
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it requires less storage space.
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risk of corrupted data is much less.
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speed of processing is high.
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Question 38 of 40
38. Question
A user observed that a certain file in a removable storage device changed to a shortcut icon. This implies that
the file is corrupt.
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the file is shared.
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the removable storage device is corrupt.
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there is a link to the file.
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Question 39 of 40
39. Question
The objectives to consider while designing a secure database application include the following except
simplicity.
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secrecy.
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integrity.
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availability.
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Question 40 of 40
40. Question
Which one of the following features is not an advantage of distributed database?
Better response
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Lower communication cost
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Improved reliability
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Need for complex software
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WAEC DATA PROCESSING 2025

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