JAMB and WAEC Computer Studies questions

548 questions with answers and explanations. Tap an option to check yourself.

1. Question 481· Programming languages and BASIC· WAEC

   A variable in programming is

   • Aa loop
   • Ba fixed number
   • Ca printer
   • Da named storage location whose value can change

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   Answer: D. a named storage location whose value can change

   Explanation and discussion

2. Question 482· Programming languages and BASIC· WAEC

   Assembly language uses short codes such as ADD and MOV called

   • Akeywords of BASIC
   • Bmnemonics
   • Cpixels
   • Dprotocols

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   Answer: B. mnemonics

   Explanation and discussion

3. Question 483· Programming languages and BASIC· WAEC

   A syntax error occurs when

   • Athe computer is off
   • Bthe program gives wrong results
   • Cthe rules of the language are broken
   • Dthe printer jams

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   Answer: C. the rules of the language are broken

   Explanation and discussion

4. Question 484· Programming languages and BASIC· WAEC

   In BASIC, the statement PRINT is used to

   • Arepeat steps
   • Baccept input
   • Cend the program
   • Ddisplay output

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   Answer: D. display output

   Explanation and discussion

5. Question 485· Programming languages and BASIC· WAEC

   HTML is used to

   • Acompile programs
   • Bstructure web pages
   • Cmanage databases
   • Ddesign hardware

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   Answer: B. structure web pages

   Explanation and discussion

6. Question 486· Programming languages and BASIC· JAMB

   Fourth-generation languages (4GLs) such as SQL are

   • Acloser to natural language and need less coding
   • Bbinary codes
   • Cassembly languages
   • Dmachine-specific

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   Answer: A. closer to natural language and need less coding

   Explanation and discussion

7. Question 487· Programming languages and BASIC· JAMB

   In BASIC, the statement used to display output on the screen is

   • AEND
   • BINPUT
   • CLET
   • DPRINT

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   Answer: D. PRINT

   Explanation and discussion

8. Question 488· Programming languages and BASIC· WAEC

   The program that converts assembly language into machine code is

   • Aa compiler
   • Ban assembler
   • Can interpreter
   • Dan editor

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   Answer: B. an assembler

   Explanation and discussion

9. Question 489· Programming languages and BASIC· WAEC

   An error in the grammar or rules of a programming language is a

   • Aruntime error
   • Blogic error
   • Csyntax error
   • Dhardware error

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   Answer: C. syntax error

   Explanation and discussion

10. Question 490· Programming languages and BASIC· JAMB

    Python, Java and C are examples of

    • Aweb browsers
    • Boperating systems
    • Chigh-level programming languages
    • Dhardware devices

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    Answer: C. high-level programming languages

    Explanation and discussion

11. Question 491· Programming languages and BASIC· WAEC

    A mistake in the grammar of a program statement is

    • Aa run-time error
    • Ba logic error
    • Ca syntax error
    • Da hardware fault

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    Answer: C. a syntax error

    Explanation and discussion

12. Question 492· Programming languages and BASIC· WAEC

    In BASIC, what does PRINT 7 + 3 * 2 display?

    • A20
    • B13
    • C23
    • D17

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    Answer: B. 13

    Explanation and discussion

13. Question 493· Programming languages and BASIC· JAMB

    Object-oriented programming organises code into

    • Abinary only
    • Bflowcharts
    • Cclasses and objects
    • Dtables

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    Answer: C. classes and objects

    Explanation and discussion

14. Question 494· Programming languages and BASIC· WAEC

    Python is an example of a

    • Ahigh-level language
    • Bmachine language
    • Cassembly language
    • Dmarkup language only

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    Answer: A. high-level language

    Explanation and discussion

15. Question 495· Programming languages and BASIC· WAEC

    An interpreter differs from a compiler in that it

    • Aproduces no output
    • Btranslates the whole program at once
    • Conly works with assembly
    • Dtranslates and runs a program line by line

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    Answer: D. translates and runs a program line by line

    Explanation and discussion

16. Question 496· Programming languages and BASIC· WAEC

    A language made up of 0s and 1s that the computer understands directly is

    • Apseudocode
    • Bhigh-level language
    • Cassembly language
    • Dmachine language

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    Answer: D. machine language

    Explanation and discussion

17. Question 497· Programming languages and BASIC· JAMB

    A logic error in a program causes

    • Aa syntax message
    • Bthe program to be rejected by the compiler
    • Cdamage to the hardware
    • Dwrong results even though the program runs

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    Answer: D. wrong results even though the program runs

    Explanation and discussion

18. Question 498· Programming languages and BASIC· JAMB

    A FOR...NEXT statement in BASIC is used for

    • Adecision making
    • Brepetition (looping)
    • Cinput only
    • Dending the program

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    Answer: B. repetition (looping)

    Explanation and discussion

19. Question 499· Programming languages and BASIC· JAMB

    A variable in a program is

    • Aa fixed number
    • Ba named storage location whose value can change
    • Ca comment
    • Dan error

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    Answer: B. a named storage location whose value can change

    Explanation and discussion

20. Question 500· Programming languages and BASIC· JAMB

    In BASIC, the statement INPUT A is used to

    • Adelete A
    • Bprint A
    • Caccept a value from the user into A
    • Dend the program

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    Answer: C. accept a value from the user into A

    Explanation and discussion