Computer Quiz / MCQs

Q 11. '.TXT' extension refers usually to what kind of file?
a) Text File b) Image file c) Audio file d) Adobe Acrobat file
Q 12. '.MPG' extension refers usually to what kind of file?
a) Animation/movie file b) WordPerfect Document file c) MS Office document d) Image file
Q 13. The sampling rate, (how many samples per second are stored) for a CD is__________?
a) 44.1 kHz b) 48 kHz c) 22,050 Hz d) 48.4 kHz
Q 14. Who co-founded Hotmail in 1996 and then sold the company to Microsoft?
a) Shawn Fanning b) Sabeer Bhatia c) Ada Byron Lovelace d) Ray Tomlinson
Q 15. Who co-created the UNIX operating system in 1969 with Dennis Ritchie?
a) Niklaus Wirth b) Steve Wozniak c) Ken Thompson d) Bjarne Stroustrup
Q 16. What was the first ARPANET message?
a) lo b) mary had a little lamb c) hello world d) cyberspace, the final frontier
Q 17. '.TMP' extension refers usually to what kind of file?
a) Image file b) Compressed Archive file c) Audio file d) Temporary file
Q 18. Who created Pretty Good Privacy (PGP)?
a) Tim Berners-Lee b) Marc Andreessen c) Ken Thompson d) Paul Zimmerman
Q 19. '.BAK' extension refers usually to what kind of file?
a) Audio file b) MS Encarta document c) Backup file d) Animation/movie file
Q 20. Compact discs, (according to the original CD specifications) hold how many minutes of music?
a) 90 mins b) 56 mins c) 74 mins d) 60 mins
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