Code.org: Unit 2 - Lesson 5-7 Vocabulary

Information passed through the internet in packets.

• Packet

• DataStream

• Packet Metadata

• Transmission Control Protocol

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.

• Packet

• DataStream

• Packet Metadata

• Transmission Control Protocol

Data added to packets to help route them through the network and reassemble the original message.

• Packet

• DataStream

• Packet Metadata

• Transmission Control Protocol

A protocol for sending packets that does error-checking to ensure all packets are received and properly ordered.

• Packet

• DataStream

• Packet Metadata

• Transmission Control Protocol

A protocol for sending packets quickly with minimal error-checking and no resending of dropped packets.

• Packet

• DataStream

• User Datagram Protocol

• Transmission Control Protocol

The capacity for the system to change in size and scale to meet new demands.

• Scalability

• World Wide Web

• Domain Name System

• Hypertext Transfer Protocol

A system of linked pages, programs, and files.

• Scalability

• World Wide Web

• Domain Name System

• Hypertext Transfer Protocol

The system responsible for translating domain names like example.com into IP addresses.

• Scalability

• World Wide Web

• Domain Name System

• Hypertext Transfer Protocol

A protocol for computers to request and share the pages that make up the world wide web on the Internet.

• Scalability

• World Wide Web

• Domain Name System

• Hypertext Transfer Protocol

Differing access to computing devices and the Internet, based on socioeconomic, geographic, or demographic characteristics.

• Scalability

• Digital Divide

• Domain Name System

• Hypertext Transfer Protocol