IS 3003 Chp. 7
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The 802.11 set of standards is known as:
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Wi-FI
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The method of slicing digital messages into parcels, transmitting them along different communication paths, and reassembling them at their destinations is called
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Packet switching
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The Domain Name System (DNS) converts domain names to IP addresses
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True
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Bandwidth is the
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difference between the highest and lowest frequencies that can be accommodated on a single channel
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A network that covers entire geographical regions is most commonly referred to as a(n)
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Wide area network
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The trunk lines of the Internet are typically owned by network service providers
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True
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Which signal types are represented by a continuous waveform?
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Analog
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Which protocol is the Internet based on?
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TCP/IP
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Circuit switching makes much more efficient use of the communications capacity of a network than does packet switching
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False
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Which of the following is considered by many to be the defining Web 2.0 application?
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Social networking
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Together, a protocol prefix, a domain name, a directory path, and a document name, are called a(n)
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Uniform resource locator
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VoIP technology delivers voice information in digital form using packet switching
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True
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Coaxial cable is similar to that used for cable television and consists of thickly insulated copper wire
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True
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Which of the following statements about RFID is not true?
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RFIDs require line-of-sight contact to be read
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In the domain name "http://myspace.blogging.com", what are the root, top-level, second-level, and third-level domains, respectively?
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".", com, blogging, myspace
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The WiMax standard can transmit up to a distance of approximately
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30 miles
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TCP/IP was developed in the 1960s to enable university scientists to transmit data from computer to computer
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False
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In TCP/IP, IP is responsible for
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disassembling and reassembling of packets during transmission
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Today, most Americans connect to the Internet through broadband connections at speeds up to 15 Mbps
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True
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Increasingly, voice, video, and data communications are all based on Internet technology
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True
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A(n) ________ is a box consisting of a radio receiver/transmitter and antennas that links to a wired network, router, or hub
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Access point
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The "Internet of Things" refers to
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A vision of a pervasive Web, in which common objects are connected to and controlled over the Internet
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Web browser software requests Web pages from the Internet using which protocol?
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HTTP
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In blogging, a trackback is a list of entries in other blogs that refer to a post in the first blog
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True
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Which of the following is a challenge posed by Wi-Fi networks?
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Susceptibility to interference from nearby wireless systems
