comp sci
protocol
A set of rules governing the exchange or transmission of data between devices.
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
digital divide
A worldwide gap giving advantage to those with access to technology
Which of the following Internet protocols is used to request and send pages and files on the World Wide Web?
HyperText Transfer Protocol (HTTP)
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
Scalability
Refers to how well a system can adapt to increased demands
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
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
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
Which of the following Internet protocols is MOST important in reassembling packets and requesting missing packets to form complete messages?
Transmission Control Protocol (TCP)
What is an internet service provider (ISP)
a company that builds the routers and wired connections that allow individuals to access the Internet
Computing System
a group of computers working together for a common purpose
Computing network
a group of connected computers that can send or receive data
computing device
a machine that can run a program
paths
a sequence of direct connections
what is the necessary when to make sending a photo over the Internet to a friend who lives in a different country possible?
Both devices are using the same shared and open protocols, 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
Which of the following is true of how packets are sent through the Internet?
Packet metadata is used to route and reassemble information traveling 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
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
fault-tolerance
the ability for a system to respond to unexpected failures or system crashes as the backup system immediately and automatically takes over with no loss of service
Pathing
the sequence in which the pages are viewed
