Building a Network
A worldwide system of computer networks
What is the Internet?
The series of connections between computing devices on a network starting with a sender and ending with a receiver.
What is a Path?
The unique number assigned to each device on the Internet
What is an IP Address?
A chunk of data sent over a network. Larger messages are divided into packets that may arrive at the destination in order, out-of-order, or not at all
What is a Packet?
It's what DNS stands for
What is the Domain Name System?
A machine that can run a program, including computers, tablets, servers, routers, and smart sensors
What is a Computing Device?
A protocol for sending data across the Internet that assigns unique numbers (IP addresses) to each connected device
What is Internet Protocol (IP)?
A type of computer that forwards data across a network
What is a router?
An agreed-upon set of rules that specify the behavior of some system
What is a Protocol?
It's what HTTP stands for
What is Hypertext Transfer Protocol?
A group of interconnected computing devices capable of sending or receiving data
What is a Computing Network?
A protocol commonly used to send packets online. The goal of this protocol is to send information quickly, without worrying about accuracy or order
What is UDP (User Datagram Protocol)?
Can continue to function even in the event of individual component failures. This is important because elements of complex systems like a computer network fail at unexpected times, often in groups
What is Fault Tolerant?
A protocol for computers to request and share the pages that make up the world wide web on the Internet
What is HTTP?
The protocol a website will likely choose when accuracy matters more than saving a split second, such as sending emails, photos or browsing
What is TCP (Transmission Control Protocol)?
A system of linked pages, programs, and files
What is the World Wide Web?
A protocol commonly used to send packets online. This protocol is slower, but more accurate. Packets are numbered so they can be re-ordered or missing packets can be resent
What is TCP (Transmission Control Protocol)?
The inclusion of extra components so that a system can continue to work even if individual components fail, for example by having more than one path between any two connected devices in a network
What is Redundancy?
The system responsible for translating domain names like example.com into IP addresses
What is DNS?
Data added to packets to help route them through the network and reassemble the original message
What is Packet Metadata?
A group of computing devices and programs working together for a common purpose
What is a Computing System?
The protocol a website will likely choose when video-conferencing, live streaming, or online gaming
What is UDP (User Datagram Protocol)?
Differing access to computing devices and the Internet, based on socioeconomic, geographic, or demographic characteristics
What is a Digital Divide?
The maximum amount of data that can be sent in a fixed amount of time, usually measured in bits per second
Bandwidth
The capacity for the system to change in size and scale to meet new demands
What is scalability?