Data Structures Algorithms-II MCQs

Page No. 121

Gronsfeld cipher is an example of _____________


amono-alphabetic cipher


bpoly-alphabetic cipher


ctransposition cipher


dadditive cipher



What will be the ciphered text corresponding to “ALGORITHM” if beaufort cipher is used for encryption with key as “KEY”?


aBNJSWOAPV


bKTSWNQRXM


cAMIRVNZOU


dMBPHJSNIU


View Answer KTSWNQRXM

What will be the ciphered text corresponding to “SANFOUNDRY” if beaufort cipher is used for encryption with key as “KEY”?


aSBPISZTKZH


bTCQJTAULAI


cSELFQEXBHM


dSPBISZKTZH


View Answer SELFQEXBHM

Beaufort cipher and variant beaufort cipher are same ciphers.


a True


b False


cA & B


d None of the above


View Answer False

What will be the plain text corresponding to cipher text “SEDGKG” if beaufort cipher is used with key as “KEY”?


aPRISON


bDEATHS


cSAVEUS


dABUSED


View Answer SAVEUS

The process of decryption is exactly same as that of encryption in beaufort cipher.


aTrue


bFalse


cA & B


d None of the above


View Answer True

Beaufort cipher is a variant of ____________


aautokey cipher


bvigenere cipher


c hill cipher


droute cipher


View Answer vigenere cipher

Which of the following is a difference between beaufort cipher and vigenere cipher?


athey use different tables for encryption


bvigenere cipher is poly alphabetic whereas beaufort cipher is mono alphabetic


c vigenere cipher uses a key whereas no key is required for using beaufort cipher


dthey use the same table for encryption, but in a different manner View Answer



Which of the following is reciprocal cipher?


avigenere cipher


bautokey cipher


crunning key cipher


dbeaufort cipher


View Answer beaufort cipher

Encryption in beaufort cipher is done using ____________


atrithemius table


bvigenere cycle


ctabula recta


dfour square table


View Answer tabula recta

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