JAMB and WAEC Computer Studies questions

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

1. Question 201· Computer security, ethics and safety· JAMB

   Antivirus software should be

   • Aused only offline
   • Bnever updated
   • Cuninstalled after a week
   • Dupdated regularly

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   Explanation and discussion

2. Question 202· Computer security, ethics and safety· WAEC

   A firewall protects a network by

   • Aprinting faster
   • Bcooling the processor
   • Cfiltering incoming and outgoing traffic
   • Dstoring backups

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3. Question 203· Computer security, ethics and safety· JAMB

   Encryption protects data by

   • Adeleting it
   • Bturning it into a code that only authorised people can read
   • Cprinting it
   • Dcompressing it

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4. Question 204· Computer security, ethics and safety· JAMB

   A Trojan horse is

   • Aan antivirus
   • Ba firewall
   • Cmalware disguised as useful software
   • Da backup

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5. Question 205· Computer security, ethics and safety· JAMB

   A computer worm differs from a virus in that it

   • Aspreads by itself across networks without attaching to files
   • Bneeds a host file always
   • Cis harmless
   • Dis hardware

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6. Question 206· Computer security, ethics and safety· JAMB

   Repetitive strain injury (RSI) can result from

   • Ausing a stand
   • Bgood posture
   • Cshort computer use
   • Dlong periods of typing without breaks

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7. Question 207· Computer security, ethics and safety· JAMB

   Using copies of software without a licence is

   • Aencryption
   • Bsoftware piracy
   • Cdebugging
   • Dnetworking

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   Explanation and discussion

8. Question 208· Computer security, ethics and safety· JAMB

   Keeping copies of important files so they can be restored if lost is

   • Abacking up
   • Bformatting
   • Cbooting
   • Dcompiling

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9. Question 209· Computer security, ethics and safety· WAEC

   Making copies of files to restore them if data is lost is

   • Adefragmentation
   • Bencryption
   • Cformatting
   • Dbackup

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   Explanation and discussion

10. Question 210· Computer security, ethics and safety· JAMB

    Plagiarism means

    • Awriting code
    • Bbacking up files
    • Cencrypting data
    • Dpresenting someone else's work as your own

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    Explanation and discussion

11. Question 211· Computer security, ethics and safety· WAEC

    Tricking people through fake emails into revealing passwords is called

    • Aformatting
    • Bhacking by hardware
    • Cbooting
    • Dphishing

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    Explanation and discussion

12. Question 212· Data processing and information· JAMB

    Raw facts that have not been processed are

    • Adata
    • Binformation
    • Cknowledge
    • Doutput

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    Explanation and discussion

13. Question 213· Data processing and information· JAMB

    A record in a file is

    • Aa program
    • Ba single character
    • Ca whole database
    • Da collection of related fields about one item

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14. Question 214· Data processing and information· JAMB

    Information technology refers to

    • Athe use of computers and telecommunications to store, process and transmit information
    • Bonly typing
    • Conly printing
    • Donly radio

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15. Question 215· Data processing and information· JAMB

    Processed data that is meaningful to the user is

    • Anoise
    • Braw data
    • Cinput
    • Dinformation

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    Explanation and discussion

16. Question 216· Data processing and information· WAEC

    Verification of data entry can be done by

    • Adeleting the data
    • Bdouble entry and comparison
    • Cprinting only
    • Dusing a mouse

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17. Question 217· Data processing and information· WAEC

    Validation checks that data

    • Ais reasonable and within allowed limits
    • Bwas copied correctly from the source
    • Cis switched on
    • Dis printed

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18. Question 218· Data processing and information· WAEC

    Entering the same data twice and comparing the two entries is

    • Aencryption
    • Bvalidation
    • Cverification
    • Dindexing

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19. Question 219· Data processing and information· JAMB

    SQL is a language used to

    • Aquery and manage databases
    • Bdesign hardware
    • Ccreate animations
    • Dwrite operating systems only

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20. Question 220· Data processing and information· JAMB

    Data integrity means that data is

    • Alarge
    • Bsecret
    • Caccurate and consistent
    • Ddeleted

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    Explanation and discussion