1. Which operator is used to invert all the digits in binary representation of a number?

1. 1. <<<

   
   
   

   2. ^

   
   
   

   3. >>>

   
   
   

   4. ~

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Unary not operator, ~, inverts all of the bits of its operand in binary representation.

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2. Which right shift operator preserves the sign of the value?

1. 1. >>=

   
   
   

   2. <<

   
   
   

   3. <<=

   
   
   

   4. >>

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   None

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3. On applying Left shift operator, <<, on an integer bits are lost one they are shifted past which position bit?

1. 1. 32

   
   
   

   2. 31

   
   
   

   3. 33

   
   
   

   4. 1

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   The left shift operator shifts all of the bits in a value to the left specified number of times. For each shift left, the high order bit is shifted out and lost, zero is brought in from right. When a left shift is applied to an integer operand, bits are lost once they are shifted past the bit position 31.

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4. Which of these statements are incorrect?

1. 1. The right shift operator, >>, shifts all of the bits in a value to the right specified number of times

   
   
   

   2. The right shift operator automatically fills the higher order bits with 0

   
   
   

   3. The left shift operator, <<, shifts all of the bits in a value to the left specified number of times

   
   
   

   4. The left shift operator can be used as an alternative to multiplying by 2

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   The right shift operator automatically fills the higher order bit with its previous contents each time a shift occurs. This also preserves the sign of the value.

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5. Which of these is not a bitwise operator?

1. 1. &

   
   
   

   2. <=

   
   
   

   3. |=

   
   
   

   4. &=

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   <= is a relational operator.

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