Individuals connect to the Internet through an __ (1) __ allowing them access to the system. The rules on the Internet for how messages are addressed and passed on are called __ (2) __ . Each device on the internet has a unique numeric address called an __ (3) __ , which can be looked up automatically using a __ (4) __ , which is like a giant address book.

Each message is broken up into small pieces called __ (5) __ that are sent individually which makes the Internet more reliable. Since packets often arrive out of order, they include information about the order in which they should be arranged as well as who the sender and receiver are.

Packets are guided through the internet by __ (6) __ . Having multiple paths or __ (7) __ makes the Internet more reliable and allows it to keep growing as more people and devices are connected to the system.