Ex-OR and Ex-NOR Gates Questions and Answers

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Showing 10 of 19 questions
Q1
Select the statement that best describes the parity method of error detection:
  • A Parity checking is best suited for detecting double-bit errors that occur during the transmission of codes from one location to another.
  • B Parity checking is not suitable for detecting single-bit errors in transmitted codes.
  • C Parity checking is best suited for detecting single-bit errors in transmitted codes.
  • D Parity checking is capable of detecting and correcting errors in transmitted codes.
Answer: Option C
Q2
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
Answer: Option A
Q3
A logic circuit that provides a HIGH output if one input or the other input, but not both, is HIGH, is a(n):
  • A Ex-NOR gate
  • B OR gate
  • C Ex-OR gate
  • D NAND gate
Answer: Option C
Q4
Identify the type of gate below from the equation
  • A Ex-NOR gate
  • B OR gate
  • C Ex-OR gate
  • D NAND gate
Answer: Option C
Q5
How is odd parity generated differently from even parity?
  • A TRUE
  • B FALSE
Answer: Option B
Q6
Parity systems are defined as either________ or ________ and will add an extra ________ to the digital information being transmitted.
  • A positive, negative, byte
  • B odd, even, bit
  • C upper, lower, digit
  • D on, off, decimal
Answer: Option B
Q7
Which type of gate can be used to add two bits?
  • A Ex-OR
  • B Ex-NOR
  • C Ex-NAND
  • D NOR
Answer: Option A
Q8
Why is an exclusive-NOR gate also called an equality gate?
  • A The output is false if the inputs are equal.
  • B The output is true if the inputs are opposite.
  • C The output is true if the inputs are equal.
Answer: Option C
Q9
Show from the truth table how an exclusive-OR gate can be used to invert the data on one input if the other input is a special control function.
  • A Using A as the control, when A = 0, X is the same as B. When A = 1, X is the same as B.
  • B Using A as the control, when A = 0, X is the same as B. When A = 1, X is the inverse of B.
  • C Using A as the control, when A = 0, X is the inverse of B. When A = 1, X is the same as B.
  • D Using A as the control, when A = 0, X is the inverse of B. When A = 1, X is the inverse of B.
Answer: Option B
Q10
The Ex-NOR is sometimes called the ________.
  • A parity gate
  • B equality gate
  • C inverted OR
  • D parity gate or the equality gate
Answer: Option B

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