Chapter 5 Practice Quiz - Info Sec

What is the primary purpose of cryptography?

• To make data transmission faster

• To protect the confidentiality and integrity of data

• To increase the size of data

• To reduce the cost of data storage

What is the process of transforming readable data into an unreadable form called?

• Decryption

• Encryption

• Compression

• Decomposition

Which of the following is a classic example of ancient cryptography used by Julius Caesar?

• Vigenère cipher

• Caesar cipher

• Enigma machine

• RSA algorithm

What does the Caesar cipher involve?

• Shifting each letter of the plaintext message by a certain number of spaces in the alphabet

• Reversing the order of letters in the plaintext message

• Replacing each letter with a number

• Using a complex mathematical formula to encrypt the message

What is the ROT13 cipher?

• A cipher that shifts each letter 13 places forward in the alphabet

• A cipher that shifts each letter 5 places backward in the alphabet

• A cipher that replaces each letter with a number

• A cipher that uses a complex mathematical formula

What is the process of recovering the plaintext message from the ciphertext called?

• Encryption

• Decryption

• Compression

• Decomposition

Which ancient civilizations are mentioned as having used codes to hide information?

• Egyptians and Babylonians

• Greeks and Romans

• Chinese and Indians

• Mayans and Aztecs

Who invented the Jefferson Disk?

• Arthur Scherbius

• Thomas Jefferson

• Alan Turing

• Charles Babbage

How many disks does the Jefferson Disk have?

• 26

• 36

• 46

• 56

What is the primary function of the Jefferson Disk?

• To simplify encryption and make more complex encryption schemes feasible

• To perform complex mathematical calculations

• To store large amounts of data

• To decode messages from other languages