4.Define the following as they pertain to encryption: plaintext, ciphertext, encryption algorithm, encryption key. Differentiate between private and public key encryption. [10 marks]

5. Describe and list advantages and disadvantages of each of the following backup types: full, differential, incremental, selective, CPD, and cloud. [10 marks]

6. Describe the following game controllers: gamepad, joystick, wheel, dance pad, motion-sensing game controller, and balance board. [10 marks]