Networks
In the string activity, each person stood for one of these, a two-word term that starts with “computing.”
What is a computing device?
This agreed-upon set of rules specifies the behavior of a system.
What is a protocol?
This type of computer forwards data across a network.
What is a router?
Large messages are split into these chunks of data before they travel across the Internet.
What are packets?
This system translates a domain name like code.org into the numeric address computers use.
What is DNS (the Domain Name System)?
This alliterative two-word term names the gap between people who have access to computing devices and the Internet and people who do not.
What is the digital divide?
This 9-letter word is the maximum amount of data that can be sent in a fixed amount of time, usually measured in bits per second.
What is bandwidth?
This unique number assigned to each device on the Internet begins with the two letters that end this category’s name.
What is an IP address?
Adding this, such as a second path between two devices, costs extra resources but lets a network survive failures.
What is redundancy?
This protocol checks that every packet arrived and resends any that are missing, so it is used for email and web pages.
What is TCP?
Browsers use this protocol to request and send web pages; its secure version adds an S.
What is HTTP?
This is the control or blocking of what people can access, publish, or view online, often by governments.
What is Internet censorship?
A computing network is one type of this broader term: devices and programs working together for a common purpose.
What is a computing system?
The Internet is not a single network but a network of these; its name comes from “interconnected ___.”
What are networks?
When one cable fails, a network with this two-word property keeps working. Its first word is a synonym for “flaw.”
What is fault tolerance?
A video call loses a few packets and keeps going without resending them. The call most likely uses this protocol.
What is UDP?
This system of linked pages, programs, and files uses the Internet but is not the Internet.
What is the World Wide Web?
Under this principle, Internet providers must act like Switzerland: all traffic is treated equally, with no blocking, no slowing, and no paid fast lanes.
What is net neutrality?
In a ring of 6 devices, each connected to its two neighbors, this is the most hops between any two devices, counting each link as one hop.
What is 3?
Anyone can build a device that joins the Internet because its shared rules are this, an anagram of NOPE.
What is open?
In the simulator’s logs, messages to the same classmate can take different paths, because Internet routing is this word that rhymes with “ceramic.”
What is dynamic?
Each packet carries this “data about data,” which is used to route the packet and to reassemble the message.
What is metadata?
The name-lookup system is not one computer. It is spread across many of these, a word that rhymes with “observers.”
What are servers?
Some low-income families have Internet service only through a phone, with no computer at home. This 13-letter type of characteristic explains that gap.
What is socioeconomic?
Devices A, B, C, and D form a square, A–B–C–D–A, with one extra link from A to C. This is the number of paths from B to D that never visit a device twice.
What is 4?
This S-word names the design goal that the Internet’s shared rules and backup routes both support: growing to serve more devices and more people.
What is scalability?
In a network, A connects to B and C, which connect to each other and to D, and D connects to E. This is the fewest connections that must fail to cut A off from E.
What is 1?
A receiver gets four of a message’s five packets and asks the sender for the missing one. This number in each packet tells it which one; its first word is an 8-letter synonym for “order.”
What is the sequence number?
These organizations issue digital certificates that confirm who owns a website’s encryption keys, based on a trust model.
What are certificate authorities?
Unequal access to devices and the Internet raises issues of equity, access, and this I-word, which hides a three-letter illness.
What is influence?