Data Structures Algorithms-II MCQs

Page No. 125

Encryption in hill cipher is done using ______________


amatrix multiplication


ba 5×5 table


cvigenere table


dmatrix inversion


View Answer matrix multiplication

Hill cipher is an example of ____________


amono-alphabetic cipher


bsubstitution cipher


ctransposition cipher


dadditive cipher


View Answer substitution cipher

Hill cipher requires prerequisite knowledge of?


a integration


bdifferentiation


cmatrix algebra


ddifferential equation


View Answer matrix algebra

What will be the ciphered text if rail fence cipher is used for encrypting the plain text “SANFOUNDRY” with the key value given to be 2?


aSNONRAFUDY


bSORAFUDYNN


cSNAUDNORFY


d SANFOUNDRY


View Answer SNONRAFUDY

In which of the following cipher the plain text and the ciphered text have same letters?


aautokey cipher


brail fence cipher


cvigenere cipher


dadditive cipher


View Answer rail fence cipher

Rail fence cipher is more secure than one time pad cipher.


aTrue


bFalse


cA & B


d None of the above


View Answer False

What will be the plain text corresponding to cipher text “SCSEMG” if rail fence cipher is used with key value 2?


aMSGSEC


bSECMSG


c GSMSEC


dSECGSM


View Answer SECMSG

The number of columns in the table used for encryption in rail fence cipher depends upon the given key value.


aTrue


bFalse


cA & B


d None of the above


View Answer False

Which of the following is are two types of traditional cipher?


atransposition cipher and replacement cipher


b transposition cipher and substitution cipher


ctransforming cipher and substitution cipher


dtransforming cipher and replacement cipher



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


aAutokey cipher


bHill cipher


cOne time pad cipher


dAdditive cipher


View Answer Additive cipher

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