Exam 7: Telecommunications, the Internet, and Wireless Technology

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Wireless sensor networks (WSNs)are used for the following tasks except:

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In TCP/IP,IP is responsible for which of the following?

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T1 lines:

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What are the four layers of the TCP/IP reference model?

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Instant messaging is a type of ________ service.

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Which one of the following statements is not true?

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Which digital cellular standard is used widely throughout the world except the United States?

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RFID technology is being gradually replaced by less costly technologies such as WSNs.

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VoIP technology delivers voice information in digital form using circuit switching.

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A hub is a networking device that sends packets of data to all other devices on the network.

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The backbone networks of the Internet are typically owned by long-distance telephone companies called:

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How are RFID systems used in inventory control and supply chain management?

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A(n)________ signal is a discrete,binary waveform that transmits data coded into two discrete states such as 1-bits and 0-bits.

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Which type of application does Macy's use to track items for sale on store shelves?

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In addition to being an online retailer,Amazon is also a powerful product search engine.

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The Domain Name System (DNS)converts domain names to IP addresses.

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Which of the following is the best description of a protocol in a telecommunications network architecture?

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What are some of the standards and networks used in digital cellular service,and where are they in use?

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A VPN:

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Bluetooth can be used to link up to ________ devices within a 10-meter area using low-power,radio-based communication.

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