Data Structures Algorithms-II MCQs

Page No. 115

You are given a boolean expression which consists of operators &, | and ∧ (AND, OR and XOR) and symbols T or F (true or false). You have to find the number of ways in which the symbols can be parenthesized so that the expression evaluates to true. This is the boolean parenthesization problem. Which of the following methods can be used to solve the problem?


aDynamic programming


bRecursion


cBrute force


dDynamic programming, Recursion and Brute force



What will be the ciphered text for the input string “sanfoundry” with key string as “code” to the program of keyword cipher?


aSCMBNUMERY


bSSCMBNUMERY


cNIFO


dNILO


View Answer SCMBNUMERY

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


asubstitution cipher


btransposition cipher


cvigenere cipher


dhill cipher


View Answer transposition cipher

Which of the following is a type of traditional cipher?


atransportation cipher


btransposition cipher


ctransforming cipher


d vigenere cipher


View Answer transposition cipher

What is the meaning of cipher in cryptography?


aan algorithm that performs encryption


ban algorithm that generates a secret code


can algorithm that performs encryption or decryption


da secret code



What will be the ciphered text if the string “HELLO” is given as input to the code of hill cipher with keyword as “SANFOUNDRY”?


aEZJ


bJEZ


cZEJ


d JZE


View Answer JZE

n which of the following cipher the plain text and the ciphered text does not have same number of letters?


aaffine cipher


bhill cipher


ccolumnar cipher


dadditive cipher


View Answer hill cipher

Which cipher is represented by the following function?


avigenere cipher


bhill cipher


ckeyword cipher


drotor cipher


View Answer hill cipher

Poly alphabetic cipher harder to decipher than mono alphabetic cipher.


atrue


bfalse


cA & B


d None of the above


View Answer true

Which of the following is a type of substitution cipher?


apoly alphabetic cipher


b transposition cipher


ccolumnar cipher


drail fence cipher



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