AP COMP Unit 2

Which of the following actions are likely to be helpful in reducing the digital divide? Select two answers.

Designing new technologies to be accessible to individuals with different physical abilities Having world governments support the construction of network infrastructure

When a device connects to a website, it is really just requesting and receiving files using this type of request.

Hypertext Transfer Protocol (HTTP)

Which of the following is a primary benefit of making a computing system fault-tolerant?

If one component of the system fails, users of the system can often still access it

Which of the following is a primary reason for the use of open protocols on the Internet?

Open protocols provide a way to standardize data transmission between different devices

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

This layer of the Internet includes the actual wires, cables, and devices that allow information to be passed over the Internet.

Physical Network

Which of the following actions is most likely to be effective in reducing the digital divide at a local level?

Providing free community access to computers at schools, libraries, and community centers

A city government is attempting to reduce the digital divide between groups with differing access to computing and the Internet. Which of the following activities is LEAST likely to be effective in this purpose?

Putting all government forms on the city Web site

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

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

Arrange the layers of the Internet in the correct order. The top layer, 1, is relies on all of the other layers beneath it, while the lowest level, 4, does not rely on any of the layers above it.

3 - IP 4 - Physical Networks 1 - TCP & UDP 2 - HTTP & DNS

Which of the following best explains what happens when a new device is connected to the Internet?

An Internet Protocol (IP) address is assigned to the device

Which of the following actions could be used to help reduce the digital divide?

I, II, and III

Which of the following is a true statement about Internet communication?

Every device connected to the Internet is assigned an Internet protocol (IP) address

Which of the following statements correctly explain how the Internet is able to facilitate communication at a large scale?

II and III only

Why is the transition from IPv4 to IPv6 happening?

IPv6 allows more devices to connect to the internet, increasing scalability.

Two computers are built by different manufacturers. One is running a Web server and the other is running a Web browser. Which of the following best describes the ability of the two computers to communicate with each other across the Internet?

The computers can communicate directly because Internet communication uses standard protocols

A user enters a Web address in a browser, and a request for a file is sent to a Web server. Which of the following best describes how the file is sent to the user?

The file is broken into packets for transmission. The packets are reassembled upon receipt.

Which of the following best explains how messages are typically transmitted over the Internet?

The message is broken into packets. The packets can be received in any order and still be reassembled by the recipient's device

All of the following might be found in a packet's metadata EXCEPT:

all of the data inside the packet

One of the differences between a computing network and a computing system is:

network devices are interconnected and can send and receive data, but a system has a shared purpose

Which of the following is true regarding bandwidth?

Increasing the bandwidth increases the capacity of of bits per second

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

Which of the following actions is most likely to help reduce the digital divide?

Deploying satellites and other infrastructure to provide inexpensive Internet access to remote areas of Earth

Working with routers, this allows data to be send between two computers using unique identifiers for the sender and receiver

Internet Protocol (IP)

To connect to a website's server, this translates the URL into an IP address at the request of the user.

Domain Name System (DNS)

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 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 protocols are designed to protect information from hackers as it travels over the Internet? Choose two.

SSL and TLS

Which of the following is LEAST likely to be a contributing factor to the digital divide?

Some parents prefer to limit the amount of time their children spend using computing devices or the Internet.

Which protocol ensures that all data packets of a message have been received or requests missing packets from the host, if necessary?

TCP

The transmission control protocol (TCP) and Internet protocol (IP) are used in Internet communication. Which of the following best describes the purpose of these protocols?

To establish a common standard for sending messages between devices on the Internet

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

Transmission Control Protocol (TCP)

When data needs to be send very quickly from sender to receiver, this is used even though there may be packet loss or packets may be reassembled out of order.

User Datagram Protocol (UDP)

All of the following are true about the Internet except:

the Internet is built and controlled by governments

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

Researchers have developed a simulation of packets traveling between server computers and client computers in a network. Of the following, which two outcomes are most likely to be results of the simulation? Select two answers.

Better understanding of the impact of increased connection speeds for frequently visited servers Better understanding of the effect of temporarily unavailable network connections

Which of the following best explains how fault tolerance in a network is achieved?

By providing multiple paths between devices, enabling routing to occur even in the presence of a failed component

Which of the following best explains how data is typically assembled in packets for transmission over the Internet?

Each packet contains data to be transmitted, along with metadata containing information used for routing the data

Web pages are formatted using which of the following?

HTML

Which protocol allows a user to request and receives specific information from a website using requests like GET and POST?

HTTP

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 is most likely to be an outcome of the digital divide?

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

What is the relationship between fault tolerance and redundancy?

Redundancy increases fault tolerance

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

Which of the following best explains how the Internet is a fault-tolerant system?

The Internet is fault-tolerant because there are usually multiple paths between devices, allowing messages to sometimes be sent even when parts of the network fail

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

Which of the following best describes the relationship between the World Wide Web and the Internet?

The World Wide Web is a system of linked pages, programs, and files that is accessed via a network called the Internet

Which of the following is a characteristic of the fault-tolerant nature of routing on the Internet?

The ability to provide data transmission even when some connections have failed

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 statements best explains the ability of the network to provide fault tolerance?

The network is considered fault-tolerant because there are redundant paths between each pair of devices

You are using zoom to video chat with an admissions counselor at one of the universities you plan to apply to, but the video or audio sometimes lag. What could be contributing to this?

The packets are sent and received with UDP

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.

fault tolerance