MCQ | Cryptography Ciphers (Level: Easy) | Set 2

by saraalalwane
36
11

Information Security

Here, we have a set of multiple-choice questions and answers (quiz) on ciphers in Cryptography (basic concepts of Cryptography Techniques and different types of ciphers).

questions

Title
The DES (Data Encryption Standard) cipher follows the fiestal structure. Which of the following properties are not shown by the fiestal structure? The DES (Data Encryption Standard) cipher follows the fiestal structure. Which of the following properties are not shown by the fiestal structure? The input text is divided into two parts: one being left half and another one being right half. Swapping of the left and right halves are performed after each round. The plain text is converted into a matrix form first None of the above discuss The answer is: C. The plain text is converted into a matrix form first
Among the following given options, chose the strongest encryption technique? Among the following given options, chose the strongest encryption technique? DES ( Data Encryption Standard) Double DES Triple DES AES (Advance Encryption Standard) discuss The answer is: D. AES (Advance Encryption Standard)
What is the full-form of RSA in the RSA encryption technique? What is the full-form of RSA in the RSA encryption technique? Round Security Algorithm Rivest, Shamir, Adleman Robert, Shamir, Addie None of the above discuss The answer is: B. Rivest, Shamir, Adleman
The above steps are performed in each round of which of the following ciphers? Consider the following steps, Substitution bytes Shift Rows Mix columns Add round key The above steps are performed in each round of which of the following ciphers? Rail fence cipher Data Encryption Standard (DES) Advance Encryption Standard (AES) None of the above discuss The answer is: C. Advance Encryption Standard (AES)
Codes and ciphers are different ways to _____ a message Codes and ciphers are different ways to _____ a message. Encrypt Decrypt Both A and B All of the mentioned above discuss The answer is: C. Both A and B
_____ ciphers encrypt uniformly sized blocks of data _____ ciphers encrypt uniformly sized blocks of data. Set Block Rack All of the mentioned above discuss The answer is: B. Block
Images can also be encrypted in sentences, Images can also be encrypted in sentences, True False discuss The answer is: A. True
Decryption is a process to unveil the ______ Decryption is a process to unveil the ______. Unsecured data Secured data Insecure None of the mentioned above discuss The answer is: B. Secured data
Symmetric encryption gathers plain-text data and then shuffles it to make it unreadable Symmetric encryption gathers plain-text data and then shuffles it to make it unreadable. True False discuss The answer is: A. True
You are supposed to use hill cipher for encryption technique. You are provided with the following matrix, You are supposed to use hill cipher for encryption technique. You are provided with the following matrix, A = [ 4 2 2 1 ] Is the given matrix 'A', a valid key to be used for encryption? Yes No Can't be determined Data insufficient discuss The answer is: B. No
You are supposed to use hill cipher for encryption technique. You are provided with the following matrix, A = [ 4 2 2 1 ] Is the given matrix 'A', a valid key to be used for encryption? You are supposed to use hill cipher for encryption technique. You are provided with the following matrix, A = [ 4 2 2 1 ] Is the given matrix 'A', a valid key to be used for encryption? Yes No Can't be determined Data insufficient discuss The answer is: B. No

total MCQs: 11

MCQs

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