Substitution Ciphers

Substitution Ciphers

12th Grade

5 Qs

quiz-placeholder

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Substitution Ciphers

Substitution Ciphers

Assessment

Quiz

Computers

12th Grade

Practice Problem

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the main types of substitution ciphers?

Vigenère cipher

Transposition cipher

Caesar cipher, monoalphabetic cipher

Playfair cipher

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you decrypt a message that has been encoded with a substitution cipher?

Use a random key to shift all letters by three positions.

Reverse the order of the letters in the message.

Replace each letter in the encoded message with its corresponding original letter based on the identified substitution pattern.

Replace all vowels with the letter 'X' regardless of their position.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are some real-world applications of substitution ciphers?

Cooking recipes

Social media marketing

Military communications, corporate data encryption, puzzles and games, educational tools.

Weather forecasting tools

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a common method for creating a substitution cipher?

Using a random key to replace letters.

Shifting letters by a fixed number of positions.

Creating a keyword that determines the letter substitutions.

Reversing the alphabet to create a mirror cipher.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What role does the key play in a substitution cipher?

The key determines the method of encryption.

The key is used to decrypt the message.

The key defines the specific letter substitutions.

The key is irrelevant in substitution ciphers.

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