Question 24 (1 point) is a high-speed carrier service that uses ordinary phone circuits to send and receive data. Digital subscriber line Code division multiple access A cable modem An analog modem Previous Page Next Page Submit Quiz 26 of 50 questions saved
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Question 1 (2 points) Which of the three types of guided (wireline) media is relatively slow for transmitting data, subject to interference from other electrical sources, and can be easily tapped by unintended recipients to gain unauthorized access to confidential data? Question 1 options: 1) Fiber-optic cable 2) Twisted-pair 3) Coaxial cable Question 2 (2 points) What type of modem uses a portion of a voice telephone line to maintain a connection to offer immediately-available broadband access? Question 2 options: 1) Cable 2) Fiber 3) Dial-up 4) DSL (Digital Subscriber Line) Question 3 (2 points) Put the following list of computer networks in the correct order of networks from largest to smallest range of coverage: local area networks (LANs) metropolitan area networks (MANs) personal area networks (PANs), and wide area networks (WANs) Question 3 options: 1) MAN, WAN, LAN, PAN 2) WAN, MAN, LAN, PAN 3) MAN, WAN, PAN, LAN 4) WAN, MAN, PAN, LAN Question 4 (2 points) What type of broadband access to the Internet uses a modem that shares bandwidth among a number of subscribers, such that when large numbers of subscribers access the Internet at the same time, each user's bandwidth can decrease significantly? Question 4 options: 1) Cable 2) Dial-up 3) DSL (Digital Subscriber Line) 4) Fiber Question 5 (2 points) What type of computer network is generally provided by common carriers such as telephone companies and the international networks of global communications services providers? Question 5 options: Local area networks (LANs) Metropolitan area networks (MANs) Wide area networks (WANs) Personal area networks (PANs)
Rachel G.
Question 6 (2 points) Which of the following lists correctly lists the order of the three types of guided media, from LOWEST to HIGHEST, with respect to their possible bandwidth, or transmission capacity? Question 6 options: Fiber-optic cable, Coaxial cable, Twisted-pair wire Coaxial cable, Fiber-optic cable, Twisted-pair wire Twisted-pair wire, Coaxial cable, Fiber-optic cable Twisted-pair wire, Fiber-optic cable, Coaxial cable Question 7 (2 points) Which of the following devices would be used to covert analog signals into a digital format so the signal could be sent using digital data transmission? Question 7 options: Codec (coder/decoder) DSP (Digital Signal Processor) Modem (modulator/demodulator) PCM (Pulse Code Modulation) Question 8 (2 points) Court decisions requiring the Bell System Network to open its network to non-Bell equipment connect to and allowing MCI to provide long distance service in competition to AT&T are examples of what type of milestone in evolution of telecommunication service in the US? Question 8 options: Technical Expansion Economic Expansion Regulatory Controls Discovery
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