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Computer Science
Cryptography
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Q.1
"letters" has been encrypted with Caesar cipher to "cvkkvij". The key used was:
16
14
18
17
Q.2
Encrypted text that will appear to be a random string.
Encryption
Plaintext
Ciphertext
Q.3
It is a method used in telecommunication to encode text characters as standardized sequences of two different signal durations, called dots and dashes or dits and dahs.
Caesar Cipher
Morse Code
Venn Diagram
Q.4
In software-based cryptography, software implementations can be easily reverse engineered.
TRUE
FALSE
Q.5
In software-based cryptography, it uses shared hardware, thus slower to execute.
TRUE
FALSE
Q.6
In hardware-based cryptography, it is dependent on the operating system.
TRUE
FALSE
Q.7
One key is used for data encryption and another for data decryption.
Symmetric Cryptosystem
Asymmetric Cryptosystem
Asymmetric Key
Q.8
The original message in its original legible form.
Ciphertext
Plaintext
Text Message
Q.9
It is pair of algorithms that take a key and convert plaintext to ciphertext andback.
Cryptosystem
Cryptography
Decryption
Q.10
It is a science that applies complexmathematics and logic to design strong encryptionmethods.
Cryptosystem
Cryptography
Encryption
Q.11
It is a value that is known to the sender.
Decryption Key
Encryption Key
PKI
Q.12
It is also called as private key cryptography.
Symmetric Cryptosystem
Asymmetric Cryptosystem
Decryption Key
Q.13
An electronic document that establishes your credentials when you are performing transactions.
Digital code
OTP
E-mail
Digital certificate
Q.14
Attack in which a user creates a packet that appears to be something else.
Smurfing
Trojan
E-mail bombing
Spoofing
Q.15
An encryption technique with 2 keys is ______________
Monoalphabetic Cipher
Cryptography
Private key cryptography
Public key cryptography
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