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

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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

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ctabula recta

✓


dfour square table

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View Answer tabula recta

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