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## Hamming Code Multiple choice Questions and Answers (MCQs)

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Question 1 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER] |

**The most common hamming codes are a generalized version of?**

Hamming(7, 4) code | |

Hamming(8, 4) code | |

Hamming(6, 3) code | |

Hamming(5, 7) code |

Question 1 Explanation:

The most common hamming codes generalize to form hamming(7, 4) code. It encodes four bits of data into seven bits by adding three parity bits.

Question 2 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER] |

**What is the minimal Hamming distance between any two correct codewords?**

1 | |

2 | |

3 | |

4 |

Question 2 Explanation:

Since we use a generalized version of Hamming(7, 4) code, the minimal hamming distance is 3. It cannot correct burst errors.

Question 3 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER] |

**Why do we require hamming codes?**

Error correction | |

Encryption only | |

Decryption | |

Bit stuffing |

Question 3 Explanation:

Hamming codes are used for the purpose of error detection and correction. It is also used for channel encoding and decoding. They are linear-error correcting codes.

Question 4 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER] |

**Hamming codes can be used for both single-bit error and burst error detection and correction.**

True | |

False |

Question 4 Explanation:

Hamming bits are suitable only for single-bit error detection and correction and two bit error detection. It is very unlikely to detect burst errors.

Question 5 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER] |

**Who invented Hamming codes?**

Richard Hamming | |

Ross Hamming | |

Shannon | |

Huffman |

Question 5 Explanation:

Richard W. Hamming invented hamming codes in Bell Telephone Laboratory to minimize the errors in punched card readers. Huffman invented huffman codes. Shannon invented Shannon-Fanno codes.

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