CSP Unit 2 Review

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 single direct connection is established between any two devices connected to the Internet

Which of the following situations is most likely to cause issues arising from the digital divide?

A state makes voter registration forms available only by visiting a government website

Which of the following best describes the purpose of an IP address?

IP addresses provide a unique number for identifying devices that send and receive information on the Internet

Which of the following is true regarding the way information is transmitted on the Internet?

Information does not travel in one piece, but rather as a datastream of packets.

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?

The packets may arrive out of order

The diagram shows a number of computing devices connected to the Internet with each line representing a direct connection. What is the MINIMUM number of paths that would need to be broken to prevent Computing Device A from connecting with Computing Device E?

3

Which of the following Internet protocols is MOST important in reassembling packets and requesting missing packets to form complete messages?

Transmission Control Protocol (TCP)

Which of the following best describes the protocols used on the Internet?

The protocols of the Internet are open and used by all devices connected to the network

Pick Two: If the post office delivered mail exactly like the routers deliver messages on the Internet, which of the following statements would be true?

The mailman would sometimes take a different path to deliver each letter to your home Letters would be written on the outside of the envelope for all to read instead of letters put inside envelopes

Which of the following is true of how the Internet has responded to the increasing number of devices now using the network?

The protocols of the Internet were designed to scale as new devices are added

Pick the two statements that are true about the Internet Protocol (IP)

Each device or computer on the Internet is assigned a unique IP address. IP is the shared way that all devices and computers label their messages with the sender and receiver's addresses.

Which of the following Internet protocols is used to request and send pages and files on the World Wide Web?

HyperText Transfer Protocol (HTTP)

This diagram shows a number of computing devices connected to the Internet with each line representing a direct connection Device A is attempting to send data over the Internet to Device E. Which of the following is true of how the data will travel through the network?

It is possible that the data travels through any of the devices in the network before arriving at device E

Match the term with the correct definition. Chunk of data and its metadata, used to route and reassemble information on the Internet. Rules for addressing and sending data across the internet by assigning unique numbers to each connected device Takes inventory of all packets in the datastream to ensure they are successfully sent and received. The way in which information travels on the Internet, not as a single piece but in chunks' Sends all packets without checking whether they were received or ordered properly

Packet Internet Protocol (IP) Transmission Control Protocol (TCP) Datastream User Datagram Protocol (UDP)

Which of the following is true of how packets are sent through the Internet?

Packet metadata is used to route and reassemble information travelling through the Internet

Which of the following is MOST likely to be an outcome of the digital divide?

People from some racial or ethnic groups have unequal access to computing technology

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?

Redundant networks are more reliable

Choose the two statements that best describe the relationship between HTTP and the World Wide Web

The World Wide Web is a collection of pages and files that is shared between computers using HTTP HTTP and the World Wide Web both rely on other layers of protocols for sending information on the Internet

Match the term with the definition a machine that can run a program a group of computers working together for a common purpose a sequence of direct connections a group of connected computers that can send or receive data

computing device computing system path computing network

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?

fault-tolerance