WAEC Data Processing 2017 past questions

Checked by the Skolra question team · Last updated 15 October 2026

Ten questions from the 2017 WAEC Data Processing paper, with answers and explanations. We hold 40 questions from this paper, and the Skolra app has all of them.

WAEC Data Processing 2017 questions and answers

1. 1.Which of these operations would not improve the performance of a parallel database system?
   1. A
      Forcing all queries to run one after another on a single processor
      Correct
   2. B
      Partitioning data across multiple processors
   3. C
      Balancing workload evenly among nodes
   4. D
      Replicating frequently accessed data
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   Answer: A

   Parallel database performance improves through partitioning, replication, and load balancing, which spread work across processors; forcing serial execution on one processor removes the parallelism and does not improve performance.
2. 2.Information transmission medium from location P to location Q in space is called
   1. A
      router
   2. B
      modem
   3. C
      channel
      Correct
   4. D
      protocol
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   Answer: C

   The path or medium through which information travels from one point to another is called a communication channel.
3. 3.Which of the following is not a type of wireless transmission
   1. A
      Infrared
   2. B
      Microwave
   3. C
      Fibre optic cable
      Correct
   4. D
      Bluetooth
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   Answer: C

   Infrared, Bluetooth and microwave all transmit data through the air without physical cables; fibre optic cable is a wired transmission medium.
4. 4.Which of the following is not an effect of computer virus?
   1. A
      Deletion of data
   2. B
      Improving the speed of the computer
      Correct
   3. C
      Slowing down of system performance
   4. D
      Corruption of files
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   Answer: B

   Viruses corrupt or delete files and slow systems down; they never improve computer speed, making that the exception.
5. 5.In a worksheet, which of the following actions would select non-contiguous cells?
   1. A
      Pressing Ctrl+A
   2. B
      Clicking and dragging across adjacent cells
   3. C
      Holding down the Ctrl key while clicking each cell
      Correct
   4. D
      Holding down the Shift key and clicking the last cell
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   Answer: C

   Holding Ctrl while clicking individual cells selects them as separate, non-contiguous cells, unlike Shift-click or drag selection which select contiguous ranges.
6. 6.Commonly accepted practices, rules or methods in computing are called
   1. A
      computer hacking
   2. B
      computer piracy
   3. C
      computer virus
   4. D
      computer ethics
      Correct
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   Answer: D

   Computer ethics refers to the generally accepted principles and rules of right conduct observed when using computers.
7. 7.The assembling of data according to a predetermined order is known as
   1. A
      sorting
      Correct
   2. B
      collection
   3. C
      coding
   4. D
      verification
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   Answer: A

   Arranging data according to a predetermined order, such as alphabetically or numerically, is known as sorting.
8. 8.Planning and creating of website is called web
   1. A
      design
      Correct
   2. B
      surfing
   3. C
      browsing
   4. D
      hosting
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   Answer: A

   Planning and creating the structure and content of a website is called web design.
9. 9.Which of these methods would delete a relationship defined between two tables in MS Access?
   1. A
      Click the relationship line in the Relationships window and press Delete
      Correct
   2. B
      Delete one of the related tables entirely
   3. C
      Rename the primary key field
   4. D
      Close the database file without saving
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   Answer: A

   In MS Access, a relationship is removed by opening the Relationships window, selecting the line joining the two tables, and pressing Delete.
10. 10.Which of the following is used to retrieve specific information from database tables?
    1. A
       Query
       Correct
    2. B
       Form
    3. C
       Macro
    4. D
       Report
    Show answerHide answer

    Answer: A

    A query is the database object used to filter and retrieve specific information from one or more tables.

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

Spotted a wrong answer? Tell us from the app or on the contact page and we check it.

Practise all 40 questions we hold from the 2017 paper, on a timed CBT screen

Every question has the answer and an explanation, in the Skolra app.

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