How Good Are You With Computers?

10 Questions | By Athwash | Last updated: Mar 14, 2022 | Total Attempts: 161

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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 called:
- 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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