WAEC Data Processing 2024 past questions

Checked by the Skolra question team · Last updated 23 October 2026

Ten questions from the 2024 WAEC Data Processing paper, with answers and explanations. We hold 33 questions from this paper, and the Skolra app has all of them.

WAEC Data Processing 2024 questions and answers

1. 1.Which one of the following statements is true about database tables?
   1. A
      A table cannot have more than one column
   2. B
      A table can only contain numeric data
   3. C
      A table must first be converted into a spreadsheet before it can be used
   4. D
      A table is made up of rows (records) and columns (fields)
      Correct
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   Answer: D

   In database design, a table is structured as a set of rows (records) and columns (fields), which is a fundamental true statement about database tables.
2. 2.The binary number 100101, can be written in denary as
   1. A
      35
   2. B
      45
   3. C
      41
   4. D
      37
      Correct
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   Answer: D

   Binary 100101 = (1x32)+(0x16)+(0x8)+(1x4)+(0x2)+(1x1) = 32+4+1 = 37 in denary.
3. 3.Which of the following characteristics is associated with the architecture of parallel database?
   1. A
      Data is stored on only one physical server with no distribution
   2. B
      Multiple processors or nodes work together to execute database operations simultaneously, improving speed and performance
      Correct
   3. C
      Operations must be carried out manually by a database administrator
   4. D
      A single processor executes all database operations one after another
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   Answer: B

   Parallel database architecture is characterised by multiple processors/nodes operating concurrently (shared-memory, shared-disk or shared-nothing) to speed up query execution.
4. 4.The transmitter in communication is the component that
   1. A
      Stores data permanently for later retrieval
   2. B
      Converts the message into a signal suitable for transmission and sends it through the communication channel
      Correct
   3. C
      Amplifies background noise within the channel
   4. D
      Receives and decodes the signal at the destination
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   Answer: B

   In the communication process, the transmitter is the component that converts the source message into a transmittable signal and sends it over the channel to the receiver.
5. 5.One advantage of electronic data processing is that it
   1. A
      eliminates the need to store processed data
   2. B
      requires more manual labour than manual data processing
   3. C
      reduces the time required to process large volumes of data
      Correct
   4. D
      increases the rate of data loss during processing
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   Answer: C

   A key advantage of electronic (computer-based) data processing over manual methods is speed: large volumes of data can be processed accurately in a much shorter time.
6. 6.Header and Footer are added to a document in MS Word by just clicking on the
   1. A
      Insert tab
      Correct
   2. B
      Review tab
   3. C
      Home tab
   4. D
      View tab
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   Answer: A

   In modern ribbon-based MS Word, the Header and Footer options are found in the 'Header & Footer' group on the Insert tab.
7. 7.A malware that copies and replicates itself using computer network and security flaws is
   1. A
      Spyware
   2. B
      Adware
   3. C
      Worm
      Correct
   4. D
      Trojan horse
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   Answer: C

   A worm is a self-replicating malware that spreads across computer networks by exploiting security flaws, without needing to attach itself to a host program.
8. 8.Which one of the following practices is considered ethical?
   1. A
      Accessing another person's account without consent
   2. B
      Giving credit to original authors when using their work
      Correct
   3. C
      Spreading malicious software to damage other computers
   4. D
      Copying and distributing licensed software without permission
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   Answer: B

   Crediting original authors (respecting intellectual property) is an ethical computing practice, while the other options describe unethical or illegal acts such as piracy, unauthorised access, and malware distribution.
9. 9.Preventive maintenance measures in the computer room include the following options except
   1. A
      Maintaining proper ventilation and temperature control
   2. B
      Using surge protectors to guard against power fluctuations
   3. C
      Regular dusting and cleaning of equipment
   4. D
      Allowing eating and drinking within the computer room
      Correct
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   Answer: D

   Eating and drinking in the computer room risks spills and damage to equipment, making it a hazard rather than a preventive maintenance measure; the other options are standard preventive practices.
10. 10.The process of inspecting, transforming and modeling data to get useful information is known as
    1. A
       Data encryption
    2. B
       Data analysis
       Correct
    3. C
       Data entry
    4. D
       Data collection
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    Answer: B

    Data analysis is defined as the process of inspecting, cleaning, transforming, and modelling data with the goal of discovering useful information for decision-making.

The questions come from past JAMB, WAEC and NECO papers. We use software to help write the answer options and explanations, and every answer is checked twice before it goes on the site. How we check

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