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Computer Aptitude

BASIC COMPUTER KNOWLEDGE MCQs

Total Questions : 1975 | Page 42 of 198 pages
Question 411.  what do you call the smallest controllable element of a picture represented on a computer screen?
  1.    Bit
  2.    Pixel
  3.    Point
  4.    Cell
 Discuss Question
Answer: Option B. -> Pixel
Explanation :
Question 412.  the clock rate of a processor is measured in
  1.    minutes
  2.    Milliseconds
  3.    Megabytes
  4.    Megahertz or Gigahertz
 Discuss Question
Answer: Option D. -> Megahertz or Gigahertz
Explanation :
Question 413.  which of the following is not a binary number?
  1.    10010111
  2.    111111001
  3.    12340001
  4.    0110011
 Discuss Question
Answer: Option C. -> 12340001
Explanation :
Question 414.  which of the following protects the system from hackers ?
  1.    Firewall
  2.    Scanner
  3.    Hub
  4.    Snort
 Discuss Question
Answer: Option A. -> Firewall
Explanation :
Question 415.  which of the following is not a binary number?
  1.    10010111
  2.    111111001
  3.    12340001
  4.    0110011
 Discuss Question
Answer: Option C. -> 12340001
Explanation :
Question 416.  the scrambling of data is known as
  1.    Encryption
  2.    Sorting
  3.    Code Protection
  4.    Firewall
 Discuss Question
Answer: Option A. -> Encryption
Explanation :
Question 417.  all the following are examples of input devices except a
  1.    mouse
  2.    printer
  3.    keyboard
  4.    scanner
 Discuss Question
Answer: Option B. -> printer
Explanation :
Question 418.  word processing, spread sheet, and photo editing are examples of
  1.    system software
  2.    platform software
  3.    application software
  4.    operating system software
 Discuss Question
Answer: Option C. -> application software
Explanation :
Question 419.  what is the full form of msdn, a resource for developers ?
  1.    Microsoft Developer Network
  2.    Microsoft Demodulation Network
  3.    Millions of Services Done in Network
  4.    Microsoft Design Navigator
 Discuss Question
Answer: Option A. -> Microsoft Developer Network
Explanation :
Question 420.  all the following are examples of input devices except a
  1.    mouse
  2.    printer
  3.    keyboard
  4.    scanner
 Discuss Question
Answer: Option B. -> printer
Explanation :

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