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Welcome to the Data Encryption Standard MCQs Page

Dive deep into the fascinating world of Data Encryption Standard with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Data Encryption Standard, a crucial aspect of Cryptography and Network Security. In this section, you will encounter a diverse range of MCQs that cover various aspects of Data Encryption Standard, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Cryptography and Network Security.

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Check out the MCQs below to embark on an enriching journey through Data Encryption Standard. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Cryptography and Network Security.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Data Encryption Standard. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Data Encryption Standard MCQs | Page 4 of 4

Explore more Topics under Cryptography and Network Security

Q31.
The Ciphertext for the Plaintext 11010101, given that the key is 0111010001 is
Discuss
Answer: (d).01110011
Q32.
The Plaintext for the Ciphertext 00100010, given that the key is 1111111111 is
Discuss
Answer: (d).01001100
Q33.
In SDES, Encryption algorithm can be written as a composition of functions:

IP-1 o fK2 o fK1 o SW o IP
Discuss
Answer: (b).False
Q34.
Assume input 10-bit key, K: 0010010111 for the SDES algorithm. What is K1?
Discuss
Answer: (a).00101111
Q35.
The Plaintext for the Ciphertext 00001111, given that the key is 1111111111 is
Discuss
Answer: (c).11111111
Q36.
The Plaintext for the Ciphertext 11110000, given that the key is 0000000000 is
Discuss
Answer: (b).00000000
Q37.
Assume input 10-bit key, K: 0010010111 for the SDES algorithm. What is K2?
Discuss
Answer: (a).11101010
Q38.
The Plaintext for the Ciphertext 10100101, given that the key is 0010010111 is
Discuss
Answer: (b).00110110
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