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Computer Cryptography MCQ Question with Answer

Computer Cryptography MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 15
A mechanism used to encrypt and decrypt data.

Cryptography
Algorithm
Data flow
None of these
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Question No : 16
To encrypt the plaintext, a cryptographic algorithm works in combination with a key...

Word, number, or phrase
Special Symbols
Function Keys
All of these
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Question No : 17
Conventional cryptography also known as ... encryption.

asymmetric-key
logical-key
symmetric-key
None of these
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Question No : 18
The Data Encryption Standard (DES) is an example of a ...

Conventional cryptosystem
Asymmetric cryptosystem
Caesar's cryptosystem
All of these
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Question No : 19
Public key cryptography is a ... cryptosystem

Symmetric
Asymmetric
Symmetric & Asymmetric both
None of these
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Question No : 20
Security Goals of Cryptography are

Confidentiality
Authenticityn
Data integrityn
All of these
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Question No : 21
Cipher in cryptography is

Encrypted message
Algorithm for performing encryption and decryption
Both algorithm for performing encryption and decryption and encrypted message
Decrypted message
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