Welcome to the Cryptography in Security MCQs Page

Dive deep into the fascinating world of Cryptography in Security with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Cryptography in Security, a crucial aspect of Cyber Security. In this section, you will encounter a diverse range of MCQs that cover various aspects of Cryptography in Security, 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 Cyber Security.

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

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

Cryptography in Security MCQs | Page 4 of 6

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Privacy and Deep Web

Q31.

________________ is a cipher formed out of substitution where for a given key-value the cipher alphabet for every plain text remains fixed all through the encryption procedure.

Polyalphabetic Cipher

Caesar Cipher

Playfair Cipher

Monoalphabetic Cipher

Discuss

Answer: (d).Monoalphabetic Cipher

Q32.

In Playfair cipher, at first, a key table is produced. That key table is a 5 by 5 grid of alphabets which operates as the key to encrypt the plaintext.

Rolling Cipher

Shift Cipher

Playfair Cipher

Block Cipher

Discuss

Answer: (c).Playfair Cipher

Q33.

______________ employs a text string as a key that is implemented to do a series of shifts on the plain-text.

Vigenere Cipher

Shift Cipher

Playfair Cipher

Block Cipher

Discuss

Answer: (a).Vigenere Cipher

Q34.

The ________________ has piece of the keyword that has the same length as that of the plaintext.

Block Cipher

One-time pad

Hash functions

Vigenere Cipher

Discuss

Answer: (b).One-time pad

Q35.

In _____________ a sequence of actions is carried out on this block after a block of plain-text bits is chosen for generating a block of cipher-text bits.

Block Cipher

One-time pad

Hash functions

Vigenere Cipher

Discuss

Answer: (a).Block Cipher

Q36.

In _______________ the plain-text is processed 1-bit at a time & a series of actions is carried out on it for generating one bit of cipher-text.

Block Cipher

One-time pad

Stream cipher

Vigenere Cipher

Discuss

Answer: (c).Stream cipher

Q37.

The procedure to add bits to the last block is termed as _________________

decryption

hashing

tuning

padding

Discuss

Answer: (d).padding

Q38.

Which of the following is not an example of a block cipher?

DES

IDEA

Caesar cipher

Twofish

Discuss

Answer: (c).Caesar cipher

Q39.

Data Encryption Standard is implemented using the Feistel Cipher which employs 16 round of Feistel structure.

DES

IDEA

Caesar cipher

Twofish

Discuss

Answer: (a).DES

Q40.

DES stands for ________________

Data Encryption Security

Data Encrypted Standard

Device Encryption Standard

Data Encryption Standard

Discuss

Answer: (d).Data Encryption Standard

Page 4 of 6

Welcome to the Cryptography in Security MCQs Page

Cryptography in Security MCQs | Page 4 of 6

Explore more Topics under Cyber Security

Ethical Hacking and Security Ethics

Cyber Attacks and Security Elements

Cyber Laws and Security Tools

Network Models and Security

Phases of Security

Cyber Security Types

Understanding Attack Vectors

Privacy and Deep Web

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