How the Internet Works Practice Quiz¶

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

CS20-CS1 Explore the underlying technology of computing devices and the Internet, and their impacts on society.

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?