AP CS P HOMEWORK 1

4. The capacity of data transfer in a system. Measured by bitrate.
5. Throwing away some of the data to save space. We can throw away a lot of data without any noticeable difference from the original.
8. One key encrypts, a different key decrypts.
10. A philosophy of making information and knowledge open and accessible to all people. A network of networks built on open, agreed upon protocols.
12. Scrambling digital information into an unreadable form.
13. The amount of data (in bits) that can be sent in a fixed amount of time.
14. The ______ of a system is the time it takes for a bit to travel from sender to receiver.
15. _____Compression involves no loss of information.

1. The process of encoding information, using fewer bits than the original representation.
2. The conversion of encrypted data into its original form.
3. An encryption method in which each letter of the message is shifted by a certain amount, called the key
6. The same key is used to encrypt and decrypt
7. A group of two or more computer systems linked together.
9. A shared secret that allows the recipient to convert ciphertext into plaintext.
11. A widely agreed upon set of rules that standardize communication between machines.