Unit 2 Review: The Internet

Unit 2 Review: The Internet

By Samuel Stansbery

Multiple Choice

a machine that can run a program, including computers, tablets, servers, routers, and smart sensors

• iPhone:

• Computing Device: 

• Internet:

• Path:

Multiple Choice

a group of computing devices and programs working together for a common purpose

• School computers:

• Computer Network:

• Computing System:

• The Internet:

Multiple Choice

the series of connections between computing devices on a network starting with a sender and ending with a receiver.

• Path:

• DNS:

• Router:

• IP Address:

Multiple Choice

a group of interconnected computing devices capable of sending or receiving data.

• World Wide Web:

• Server:

• Internet:

• Computing Network: 

Multiple Choice

the maximum amount of data that can be sent in a fixed amount of time, usually measured in bits per second. 

• Binary:

• Byte:

• DNS:

• Bandwidth:

Multiple Choice

Protocol:  An agreed-upon set of rules that specify the behavior of some system

• Notice:

• Law:

• Protocol: 

• Treaty:

Multiple Choice

The unique number assigned to each device on the Internet.

• IP Address: 

• Server Number:

• Serial Number:

• Social Security Number:

Multiple Choice

a protocol for sending data across the Internet that assigns unique numbers (IP addresses) to each connected device

• Addressing Protocol:

• Server Protocol:

• World Wide Web Protocol:

• Internet Protocol (IP):

Multiple Choice

A type of computer that forwards data across a network

• Router:

• Server:

• Main Frame Computer:

• Laptop:

Multiple Choice

the inclusion of extra components so that a system can continue to work even if individual components fail, for example by  having more than one path between any two connected devices in a network.

• IP Address:

• Router:

• Redundancy: 

• Fault Tolerance:

Multiple Choice

Can continue to function even in the event of individual component failures. This is important because elements of complex systems like a computer network fail at unexpected times, often in groups.

• Bandwidth:

• IP Address:

• Router:

• Fault Tolerant: 

Multiple Choice

Information passed through the internet in packets.

• Router:

• TCP-Transmission Control Protocol

• Datastream:

• Packet:

Multiple Choice

Data added to packets to help route them through the network and reassemble the original message.

• Computer ID:

• Packet Metadata:

• IP Address:

• Router Number:

Multiple Choice

A protocol for sending packets that does error-checking to ensure all packets are received and properly ordered

• DNS Protocol:

• Server Protocol:

• User Datagram Protocol (UDP): 

• Transmission Control Protocol (TCP): 

Multiple Choice

A protocol for sending packets quickly with minimal error-checking and no resending of dropped packets

• Router Protocol:

• User Datagram Protocol (UDP): 

• IP Protocol:

• Transmission Control Protocol (TCP):

Multiple Choice

the capacity for the system to change in size and scale to meet new demands

• Flexibility:

• Expandability:

• Scalability:

• Variablilty:

Multiple Choice

the system responsible for translating domain names like example.com into IP addresses

• The Domain Name System (DNS):

• IP Name System:

• Protocol System:

• Naming System:

Multiple Choice

a protocol for computers to request and share the pages that make up the world wide web on the Internet

• Server Protocol:

• Router Protocol:

• Internet Protocol:

• Hypertext Transfer Protocol (HTTP):

Multiple Choice

a system of linked pages, programs, and files

• The Internet:

• DNS:

• World Wide Web:

• Servers:

Multiple Choice

This 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?

• 1

• 2

• 3

• 4

Multiple Choice

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?

• The data will always travel through Device B as it is the shortest path

• The data will never be sent to Device G since there are other shorter paths available

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

• If the data travels through Device D then it will not travel through Device B

Multiple Choice

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

• The Internet protocols are changed every year to adapt to the new devices that have been connected to the network

• While the number of devices connected to the Internet has grown, the network itself has not grown

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

• The protocols of the Internet are no longer necessary thanks to the large number of devices now connected to the network

Multiple Choice

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 will always be received in the order that they were sent

• Either every packet will reach her computer or none of them will.

• Packets that arrive out of order will be sent back to the server.

• The packets may arrive out of order

Multiple Choice

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

• IP addresses assist in the reconstruction of a message that has been divided into many packets

Multiple Choice

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

• scalability

• protocol

• pathing

Multiple Choice

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?

• It costs less to design a network that is redundant

• The protocols of the Internet only work on networks that are redundant

• Redundant networks are more reliable

• Adding additional connections reduces the fault-tolerance of the network

Multiple Choice

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

• Two internet-connected devices located in different countries and thousands of miles apart attempt to communicate with one another

• Packets sent from one router to another begin arriving in a different order than they were sent

• A smartphone attempts to communicate over the Internet with another type of device, like a tablet or laptop

Multiple Choice

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

• Certain companies will be unable to certify their technology as digitally secure.

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

• People will have equal access and influence both globally and locally.

• Political groups in some countries are unable to agree on regulations of digital technology.

Multiple Choice

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

• The protocols of the Internet are designed by government agencies to ensure they remain free to use

• The protocols of the Internet are secret to maintain the privacy and security of people using them

• Each device connected to the Internet will use a protocol designed by the company that manufactured it

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

Multiple Choice

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?

• Both devices are using the same shared and open protocols

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

• The data of the image is routed through a sequence of directly connected devices before arriving at its destination.

• Both devices are directly connected to at least one part of the Internet

Multiple Choice

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

• Packet metadata is only included on important packets to indicate they should get access to faster paths through the network

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

Multiple Choice

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

• Transmission Control Protocol (TCP)

• Internet Protocol (IP)

• User Datagram Protocol (UDP)

• HyperText Transfer Protocol (HTTP)