Encryption and Decryption in Python

What is the purpose of the 'encrypt' function?

• To encrypt plain text by shifting letters in the alphabet.

• To decode encrypted messages into plain text.

• To generate random passwords for user accounts.

• To store data securely in a database.

What does the 'decrypt' function do?

• It shifts each letter of the cipher text backwards in the alphabet to retrieve the original plain text.

• It encodes the plain text into a cipher text using a specific algorithm.

• It removes all special characters from the text.

• It converts the text into a binary format for storage.

What is the role of the 'shift' variable?

• It determines how many positions each letter is shifted in the alphabet.

• It specifies the number of letters to be added to a word.

• It indicates the type of encryption used in the algorithm.

• It sets the maximum length of the input string.

What does the alphabet list contain?

• It contains the letters 'a' to 'z' repeated twice.

• It contains only the vowels 'a', 'e', 'i', 'o', 'u'.

• It contains the letters 'a' to 'z' in uppercase only.

• It contains the letters 'a' to 'z' followed by numbers 1 to 26.

What is the expected input type for the 'shift' variable?

• A string representing a text value.

• A boolean indicating true or false.

• An integer representing the number of positions to shift.

• A float representing a decimal number.

What is the output of the 'decrypt' function?

• The decoded text after shifting the cipher text backwards.

• The original cipher text before encryption.

• A random string of characters.

• The length of the cipher text.

What happens if the user types 'decode'?

• The program calls the 'decrypt' function to decode the provided text.

• The program displays an error message indicating an invalid command.

• The program encrypts the provided text instead of decoding it.

• The program exits without performing any action.

What is the output of the 'encrypt' function?

• The encoded text after applying the shift to the plain text.

• The original plain text before encryption.

• A random string of characters.

• The decrypted text after applying the shift.

What is the input for the 'direction' variable?

• It takes user input to determine whether to 'encode' or 'decode' a message.

• It is a fixed value that always remains the same.

• It is a numerical value representing the length of the message.

• It is a boolean value indicating if the message is valid.

How does the 'encrypt' function determine the new position of a letter?

• By subtracting the shift amount from the current position of the letter in the alphabet.

• By adding the shift amount to the current position of the letter in the alphabet.

• By rotating the letter to the next position in the alphabet.

• By reversing the position of the letter in the alphabet.