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## Monoalphabetic Cipher Multiple choice Questions and Answers (MCQs)

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |

What is the meaning of cipher in cryptography?

an algorithm that performs encryption | |

an algorithm that generates a secret code | |

an algorithm that performs encryption or decryption | |

a secret code |

Question 1 Explanation:

Cipher is an algorithm for performing encryption or decryption. In cryptography, a set of defined steps are followed to generate ciphers.

Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |

Which of the following is a type of traditional cipher?

transportation cipher | |

transposition cipher | |

transforming cipher | |

vigenere cipher |

Question 2 Explanation:

There are two types of a traditional cipher. First is transposition cipher and the second is substitution cipher.

Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |

Which of the following ciphers are created by shuffling the letters of a word?

substitution cipher | |

transposition cipher | |

vigenere cipher | |

hill cipher |

Question 3 Explanation:

There are two types of traditional ciphers - Transposition and substitution cipher. In transposition cipher the letters of the given data are shuffled in a particular order, fixed by a given rule.

Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |

Which of the following is a type of substitution cipher?

Mono alphabetic cipher | |

transposition cipher | |

transportation cipher | |

transforming cipher |

Question 4 Explanation:

In substitution cipher the plain text is replaced by cipher text according to a fixed rule. There are two types of substitution cipher - Mono alphabetic and Poly alphabetic cipher.

Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |

Which of the following is not a type of mono alphabetic cipher?

additive cipher | |

multiplicative cipher | |

afffine cipher | |

hill cipher |

Question 5 Explanation:

In mono alphabetic cipher each symbol of plain text is replaced by a particular respective symbol in the cipher text. There are three types of mono alphabetic ciphers- additive, multiplicative and affine.

There are 5 questions to complete.