Online Study Guide

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Chapter 8

Online Study Guide

This activity contains 25 questions.

When analog sound waves are digitized, it means that they __________.

have been magnified to improve sound qualityhave been changed accidentally when they have come in contact with a magnetic surfacehave been converted into a sequence of 1s and 0shave been changed into visual wave frequencies

Digital music file formats use __________ to make the files smaller and still provide high-quality playback.

executable filesauthenticationcompressionredundancy

__________ uses radio waves to transmit data signals over short distances.

Linux Analog technologyBluetooth technologyA digital phone line

Which of the following is a typical file format for digital video?

.exe.doc.mpeg.jpeg

To send messages via cell phone that include sound or video clips, you need to use a(n) __________.

VoIP serviceanalog routerBluetooth receivermultimedia message service

A(n) __________ connects to the Internet through the 3G wireless phone network to create a mobile hot spot.

SMSISProuterMiFi

VoIP uses __________ technology to send your voice over the phone.

analogwireless protocol digitalradiation

When sounds are digitized, the analog data is changed from a wave into a __________.

series of numberssingle numberrandom group of binary codegroup of bytes

The Global Positioning System was built by __________.

the U.S. Navya private contractor supplied by the United Nationsthe U.S. Department of Defensethe Society for Global Defense

Recent studies show that __________ of adults in the U.S. between the ages of 18 and 29 have a cell phone.

71%less than 50%93%29%

Computers that do not have optical drives and have keyboards that are less than full size are typically called __________.

netbooksnotebooksDVRsInternet tablets

	Vinyl record albums and cassette tapes are examples of digital media.

	True False

	There is no standard operating system for cell phones.
	There is no standard operating system for cell phones.
	True False

	A digital camera's resolution is measured in data bytes.
	A digital camera's resolution is measured in data bytes.
	True False

	Text messaging uses store-and-forward technology to transmit messages.

	True False

	EDGE and 3G are less reliable than WiFi and they are more susceptible to interference.

	True False

	VoIP is typically much more expensive than traditional analog phone service.

	True False

	When a digitized music recording is made, the quality of the original recording determines how close the digital wave will be to the analog wave.

	True False

	There are many types of music file formats, including MP3, AAC, and WMA.

	True False

	A tethered download has some restrictions on its use even though you have paid for it and are the owner.

	True False

	All P2P file sharing is illegal.
	All P2P file sharing is illegal.
	True False

	Scanner quality is measured by its resolution, which is given in dots per inch.

	True False

	Mobicoupons are a way of using mobile apps to find and use coupons from your cell phone.

	True False

Match each key term with its meaning.

A matching question presents 6 answer choices and 6 items. The answer choices are lettered A through F. The items are numbered 24.1 through 24.6. Screen readers will read the answer choices first. Then each item will be presented along with a select menu for choosing an answer choice. Using the pull-down menus, match each item in the left column to the corresponding item in the right column.

	A type of nonvolatile memory used to store files
	The number of times the analog wave is measured each second
	The use of equipment to provide voice communications over a distance
	A technology that allows you to send short text messages over mobile networks
	A rule that allows audio and video information to be squeezed into less space
	A text-based content format designed for the smaller display screens of handheld mobile devices

24.1 Codec	[hint]
24.2 Telephony	[hint]
24.3 Sampling rate	[hint]
24.4 Wireless Markup Language	[hint]
24.5 Flash memory	[hint]
24.6 Short message service	[hint]

Match each key term with its meaning.

A matching question presents 4 answer choices and 4 items. The answer choices are lettered A through D. The items are numbered 25.1 through 25.4. Screen readers will read the answer choices first. Then each item will be presented along with a select menu for choosing an answer choice. Using the pull-down menus, match each item in the left column to the corresponding item in the right column.

	Computing that is so much a part of everyday life that it is virtually indistinguishable from it.
	The process of updating your data so that the files on your cell phone and computer are the same
	Provides a Web browser that is optimized to display Web content effectively on a smaller screen
	A specialized chip that handles the compression of digital data

25.1 Synchronizing	[hint]
25.2 Microbrowser software	[hint]
25.3 Digital signal processor	[hint]
25.4 Ubiquitous computing	[hint]

The Submit Answers for Grading feature requires scripting to function. Your browser either does not support scripting or you have turned scripting off.

So, the Submit Answers for Grading button below will not work.

The following Submit Answers for Grading button is provided in its place and will clear your answers:
The Clear Answers and Start Over feature requires scripting to function. Your browser either does not support scripting or you have turned scripting off.

So, the Clear Answers and Start Over button below will not work.

The following Clear Answers button is provided in its place and will clear your answers:

Your browser either does not support scripting or you have turned scripting off. Because of this, the answer choices will NOT appear in a different order each time the page is loaded, though that is mentioned below. Note that you do not need this feature to use this site.

Answer choices in this exercise appear in a different order each time the page is loaded.

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Online Study Guide

When analog sound waves are digitized, it means that they __________.

Digital music file formats use __________ to make the files smaller and still provide high-quality playback.

__________ uses radio waves to transmit data signals over short distances.

Which of the following is a typical file format for digital video?

To send messages via cell phone that include sound or video clips, you need to use a(n) __________.

A(n) __________ connects to the Internet through the 3G wireless phone network to create a mobile hot spot.

VoIP uses __________ technology to send your voice over the phone.

When sounds are digitized, the analog data is changed from a wave into a __________.

The Global Positioning System was built by __________.

Recent studies show that __________ of adults in the U.S. between the ages of 18 and 29 have a cell phone.

Computers that do not have optical drives and have keyboards that are less than full size are typically called __________.

Vinyl record albums and cassette tapes are examples of digital media.

There is no standard operating system for cell phones.

A digital camera's resolution is measured in data bytes.

Text messaging uses store-and-forward technology to transmit messages.

EDGE and 3G are less reliable than WiFi and they are more susceptible to interference.

VoIP is typically much more expensive than traditional analog phone service.

When a digitized music recording is made, the quality of the original recording determines how close the digital wave will be to the analog wave.

There are many types of music file formats, including MP3, AAC, and WMA.

A tethered download has some restrictions on its use even though you have paid for it and are the owner.

All P2P file sharing is illegal.

Scanner quality is measured by its resolution, which is given in dots per inch.

Mobicoupons are a way of using mobile apps to find and use coupons from your cell phone.

Match each key term with its meaning.

Match each key term with its meaning.