CS Principles Unit 2 Study Guide
fault-tolerance
Two devices are connected to the Internet and communicating with one another. A squirrel chews through one of the wires in the network that is currently being used by the devices to communicate. The network immediately begins using a different path through the network and communication continues as normal. This situation best exemplifies which principle?
The protocols of the Internet are open and used by all devices connected to the network
What best describes the protocols used on the internet?
HyperText Transfer Protocol (HTTP)
Which Internet protocols is used to request and send pages and files on the World Wide Web?
Transmission Control Protocol (TCP)
Which of the following Internet protocols is MOST important in reassembling packets and requesting missing packets to form complete messages?
IP addresses provide a unique number for identifying devices that send and receive information on the Internet
Which of the following best describes the purpose of an IP address?
People from some racial or ethnic groups have unequal access to computing technology.
Which of the following is MOST likely to be an outcome of the digital divide?
Packet metadata is used to route and reassemble information travelling through the Internet
Which of the following is true of how packets are sent through the Internet?
The protocols of the Internet were designed to scale as new devices are added
Which of the following is true of how the Internet has responded to the increasing number of devices now using the network?
A state makes voter registration forms available only by visiting a government website
Which of the following situations is most likely to cause issues arising from the digital divide?
Redundant networks are more reliable
An Internet Service Provider (ISP) is a company that builds the routers and wired connections that allow individuals to access the Internet. An ISP is considering adding additional redundant connections to its network. Which of the following best describes why the company would choose to do so?
A group of connected computers that can send or receive data
Computing network
A machine that can run a program
Computing Device
A single direct connection is established between any two devices connected to the Internet
Jesse purchases a new smartphone and is immediately able to use it to send a photo over the Internet to a friend who lives in a different country. Which of the following is NOT necessary to make this possible?
A sequence of direct connections
Path
A group of computers working together for a common purpose
computing system
The packets may arrive out of order
Emilee is watching an online video. The video is being sent to her laptop by a server over the Internet which splits the video into packets and sends them in the order they appear in the video. Which of the following is true about how the packets will arrive at her computer?
