Exam 5: Telecommunications, Wireless Technologies, and Computer Networks
Exam 1: Why Study Computers and Digital Technologies149 Questions
Exam 2: Hardware Designed to Meet the Need148 Questions
Exam 3: Software Solutions for Personal and Professional Gain147 Questions
Exam 4: The Internet and World Wide Web147 Questions
Exam 5: Telecommunications, Wireless Technologies, and Computer Networks148 Questions
Exam 6: Digital Media for Work and Leisure149 Questions
Exam 7: Database Systems147 Questions
Exam 8: E-Commerce149 Questions
Exam 9: Information, Decision Support, and Special-Purpose Systems146 Questions
Exam 10: Systems Development148 Questions
Exam 11: Computer Crime and Information Security150 Questions
Exam 12: Digital Society, Ethics, and Globalization148 Questions
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Establishing a communication link between two digital devices requires that they "speak the same language" using ____.
Free
(Multiple Choice)
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Correct Answer:
B
Waves sent at the high end of the radio spectrum, between 1 and 300 GHz, are called ____________________.
Free
(Short Answer)
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Correct Answer:
microwaves
Identify the letter of the choice that best matches the phrase or definition.
-Have your friends hear music or sound clips when they call you rather than the usual ringtone
Free
(Multiple Choice)
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Correct Answer:
K
Identify the letter of the choice that best matches the phrase or definition.
-Send messages to friends on AIM, ICQ, MSN Messenger, or Yahoo! Messenger
(Multiple Choice)
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Identify the letter of the choice that best matches the phrase or definition.
-Connect using a walkie-talkie style interface
(Multiple Choice)
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Data communications, a specialized subset of telecommunications, refers to the electronic transmission and reception of digital data, typically between computer systems. _________________________
(True/False)
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A(n) ____ device is installed at the sending computer to alter outgoing communications according to an encoding scheme that makes the communications unintelligible during transport.
(Multiple Choice)
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Identify the letter of the choice that best matches the phrase or definition.
-Schedule news to be delivered, such as news, sports scores, and so on
(Multiple Choice)
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A(n) radio wave is an electromagnetic wave transmitted through an antenna at different frequencies. _________________________
(True/False)
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A(n) ____________________ medium is anything that carries a signal between a sender and receiver.
(Short Answer)
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Identify the letter of the choice that best matches the phrase or definition.
-Have live operators answer your questions
(Multiple Choice)
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A(n) ____ is an agreed-upon way of doing something within an industry.
(Multiple Choice)
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With fiber-optic cable, high-intensity light beams are generated by lasers and are conducted along transparent fibers which have a thin coating called ____________________.
(Short Answer)
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Identify the letter of the choice that best matches the phrase or definition.
-Use carrier's e-mail service or your own corporate server
(Multiple Choice)
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Most cell phone carriers provide a choice of a "pay-as-you-go" plan without a contract, or a ____ subscription plan with a contract.
(Multiple Choice)
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A ____ connects multiple network segments; it listens to each segment and repeats the signal heard on one segment onto every other connected segment.
(Multiple Choice)
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A DSL modem is similar to a cable modem and provides high-speed Internet service over ____.
(Multiple Choice)
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A(n) ____ uses the protocols of the Internet and the Web within the confines of a private network.
(Multiple Choice)
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A ____ is a small electronic box that is used as a central point for connecting a series of computers.
(Multiple Choice)
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