How Good Are You With Computers?

10 Questions | Total Attempts: 161

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How Good Are You With Computers? - Quiz


Questions and Answers
  • 1. 
    What will be the output of the program?  int i = (int) Math.random();
    • A. 

      I=0

    • B. 

      I=1

    • C. 

      Value of i is undetermined.

    • D. 

      Statement causes a compile error

  • 2. 
    Which of the following is the most widely used alphanumeric code for computer input and output?
    • A. 

      Gray.

    • B. 

      ASCII.

    • C. 

      Parity.

    • D. 

      EBCDIC

  • 3. 
    A logic circuit that provides a HIGH output for both inputs HIGH or both inputs LOW is a(n):
    • A. 

      Ex-NOR gate.

    • B. 

      OR gate.

    • C. 

      Ex-OR gate.

    • D. 

      NAND gate.

  • 4. 
    What does the following function do?   int fun(int x, int y){      if (y == 0) return 0;   return (x + fun(x, y-1));   }
    • A. 

      X+y

    • B. 

      X+x*y

    • C. 

      X*y

    • D. 

      X^y

  • 5. 
    Which type of gate can be used to add two bits?
    • A. 

      Ex-OR

    • B. 

      Ex-NOR

    • C. 

      Ex-NAND

    • D. 

      NOR

  • 6. 
    Hexadecimal letters A through F are used for decimal equivalent values from:
    • A. 

      1 through 6

    • B. 

      9 through 14

    • C. 

      10 through 15

    • D. 

      11 through 17

  • 7. 
    The brain of any computer system is:
    • A. 

      ALU.

    • B. 

      Memory.

    • C. 

      CPU.

    • D. 

      Control unit.

    • E. 

      None of the above.

  • 8. 
    The list of coded instructions is calle´╗┐d:
    • A. 

      Computer program.

    • B. 

      Algorithm.

    • C. 

      Flowchart.

    • D. 

      Utility programs.

    • E. 

      None of the above.

  • 9. 
    A computer will function only if it
    • A. 

      Has a control unit.

    • B. 

      Is given input data.

    • C. 

      Has a program in its memory.

    • D. 

      Has software package.

    • E. 

      None of the above.

  • 10. 
    What will be the output of the program?  String x = "xyz";  x.toUpperCase(); /* Line 2 */  String y = x.replace('Y', 'y'); y = y + "abc";  System.out.println(y);
    • A. 

      AbcXyZ

    • B. 

      Abcxyz

    • C. 

      Xyzabc

    • D. 

      XyZabc

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