JAMB Computer Studies questions

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

1. Question 81· Computer networks and the internet· JAMB

   A modem converts

   • Atext to sound
   • Bdigital signals to analogue for transmission and back again
   • Ccolour to black and white
   • Dfiles to folders

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2. Question 82· Computer security, ethics and safety· JAMB

   Hacking means

   • Arepairing computers
   • Bgaining unauthorised access to computer systems
   • Ctyping fast
   • Ddesigning websites

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3. Question 83· Computer security, ethics and safety· JAMB

   Plagiarism is

   • Acreating original work
   • Bpresenting another person's work as one's own
   • Cciting sources
   • Dbacking up files

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4. Question 84· Computer security, ethics and safety· JAMB

   Spyware is software that

   • Aprotects the computer
   • Bsecretly collects information about a user
   • Cspeeds up the CPU
   • Dprints documents

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5. Question 85· Computer security, ethics and safety· JAMB

   Nigeria's law against hacking, cyberstalking and similar offences is the

   • AElectoral Act
   • BLand Use Act
   • CCybercrimes (Prohibition, Prevention, etc.) Act 2015
   • DCompanies and Allied Matters Act

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6. Question 86· Computer security, ethics and safety· JAMB

   A program that copies itself and damages files on a computer is

   • Aa compiler
   • Ba virus
   • Ca browser
   • Da device driver

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7. Question 87· Computer security, ethics and safety· JAMB

   Two-factor authentication requires

   • Atwo different proofs of identity, such as a password and a code
   • Btwo passwords written on paper
   • Ctwo computers
   • Dtwo users

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8. Question 88· Computer security, ethics and safety· JAMB

   A strong password should

   • Abe shared with friends
   • Bbe your own name
   • Cbe 1234
   • Dmix letters, numbers and symbols

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9. Question 89· Computer security, ethics and safety· JAMB

   Unwanted advertising e-mail sent to thousands of people at once is called

   • Aspam
   • Ba firewall
   • Ca backup
   • Da cookie

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10. Question 90· Computer security, ethics and safety· JAMB

    Ransomware

    • Abacks up files
    • Bcleans viruses
    • Cencrypts a user's files and demands payment
    • Dupdates software

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11. Question 91· Computer security, ethics and safety· JAMB

    A person who accesses a system without authorisation to steal data commits

    • Adata backup
    • Ba legal act
    • Ccopyright registration
    • Da cybercrime

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12. Question 92· 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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13. Question 93· 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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14. Question 94· 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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15. Question 95· 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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16. Question 96· 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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17. Question 97· Computer security, ethics and safety· JAMB

    Using copies of software without a licence is

    • Aencryption
    • Bsoftware piracy
    • Cdebugging
    • Dnetworking

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18. Question 98· 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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19. Question 99· 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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20. Question 100· Data processing and information· JAMB

    Raw facts that have not been processed are

    • Adata
    • Binformation
    • Cknowledge
    • Doutput

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    Explanation and discussion