How the Internet Works Practice Quiz

The following quiz reviews the ideas from the How the Internet Works videos created by Code.org.

Quick Review

    how-the-internet-works1: What is the best description for the type of network the internet is designed as?
  • decentralized
  • Yes! The internet is designed to withstand any part of the network being destroyed.
  • centralized
  • No, there is no centralized authority for the internet, as it is designed to withstand any part of the network being destroyed.
    how-the-internet-works2: A bit (a.k.a. atom of information) can be [choose all that are correct]
  • small
  • Small isn't a very accurate description...
  • 2
  • A 2 can not be sent as a bit (on or off).
  • 0
  • Yes, 0 is used to represent off.
  • 1
  • Yes, 1 is used to represent on.
    how-the-internet-works3: When sending bits from one computer to another over the Internet, the bit may be sent via electric (wire), light waves, or radio waves. The pros/cons of each of these options are:
  • electric (wire)
  • pro: cheap; con: signal loss
  • light
  • pro: fast, no signal loss; cons: expensive, hard to work with
  • radio
  • pro: wireless; con: signal loss
    how-the-internet-works4: Match the following definitions.
  • IP Address
  • a unique number assigned to each device connected to the network
  • DNS (Domain Name System)
  • used to convert a website name into an IP address
  • HTTP
  • the language used to communicate between web browsers and servers
  • HTML
  • the language used to structure the content on websites
  • TCP/IP & Routing
  • a method to break down and transport packets
  • public key encryption
  • used whenever you see a lock, or the letters HTTPS, in your browser

how-the-internet-works5: What percentage of internet hacks happen due to simple human error?

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