Encryption Quiz BTEC Level 2 IT Unit 1

What is encryption?

• A method of protecting data by using a key to encode and decode information

• A process of permanently deleting data from the internet

• A technique for improving the speed of data transfer over the internet

• A way of compressing data to save storage space

Why is it important to encrypt data on disks and removable media?

• To increase the storage capacity of the media

• To make it easier to transfer data between devices

• To prevent the data from being read if it is stolen

• To improve the data transfer speed over the internet

Why is it important that data communications are also encrypted?

• Because the Internet is a private network and data is automatically secure

• To ensure that data can be easily accessed by anyone

• Because the Internet is an open network and it is easy for others to read sent data

• To reduce the cost of data transmission

What is the term for the original message that is to be encrypted?

• Key

• Encryption algorithm

• Plaintext

• Ciphertext

What is the term for the encrypted message?

• Plaintext

• Key

• Encryption algorithm

• Ciphertext

What is the process of converting plaintext into ciphertext called?

• Decryption

• Key generation

• Encryption

• Authentication

What is a 'Key' in the context of encryption?

• A method to decrypt a message

• A piece of information, such as a password, used for encrypting and decrypting data

• The original message to be encrypted

• The encrypted message

What is an 'Encryption algorithm'?

• A password used to unlock encrypted data

• The process of converting ciphertext into plaintext

• The method used to encrypt the plaintext

• The software used to store keys

What is the purpose of encryption?

• To enhance the data so that it can be read more easily

• To encode data so that it cannot be read directly

• To compress data to save storage space

• To convert data into a different format for entertainment purposes

What is a simple shift cipher used for in the context of encryption?

• To shift the position of data on a storage device

• To change the font of the text to make it look different

• To encode a message by shifting the letters by a certain number of places

• To create a puzzle for entertainment