# Digital Electronics - Ex-OR and Ex-NOR Gates

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### Exercise

"Nothing in life is to be feared, it is only to be understood."
- Marie Curie
1.

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.

2.

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

3.

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

4.

Identify the type of gate below from the equation

 A. Ex-NOR gate B. OR gate C. Ex-OR gate D. NAND gate

5.

How is odd parity generated differently from even parity?

 A. The first output is inverted. B. The last output is inverted.