Flashcards and Answers – Chapter 7 MIS
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The 802.11 set of standards is known as: WLAN. WAN. WSN. Wi-Fi. WiMax.
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Wi-Fi.
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More than 50% of U.S. Internet users access the Internet via mobile devices. True False
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True
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A(n) ________ is a device that forwards packets of data through different networks, ensuring that the data gets to the right address. telnet hub modem router packet
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router
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Which of the following is not a characteristic of packet switching? Packets include data for checking transmission errors. Packets travel independently of each other. Packets are reassembled into the original message when they reach their destinations. Packet switching requires point-to-point circuits. Packets are routed through many different paths.
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Packet switching requires point-to-point circuits.
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A(n) ________ is a commercial organization with a permanent connection to the Internet that sells temporary connections to retail subscribers. RSS FTP NFP WAN ISP
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ISP
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IPv6 is being developed in order to allow for different levels of service. update the packet transmission protocols for higher bandwidth. create more IP addresses. support Internet2. reduce excess IP addresses.
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create more IP addresses.
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The most appropriate wireless networking standard for creating PANs is Wi-Fi. I-mode. RFID. IEEE 802.11b. Bluetooth.
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Bluetooth.
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Which of the following statements about RFID is not true? RFID tags and antennas come in a variety of shapes and sizes. RFIDs require line-of-sight contact to be read. RFIDs transmit only over a short range. RFIDs use an antenna to transmit data. Microchips embedded in RFIDs are used to store data.
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RFIDs require line-of-sight contact to be read.
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The Internet is based on which three key technologies? TCP/IP, HTML, and HTTP client/server computing, packet switching, and the development of communications standards for linking networks and computers TCP/IP, HTTP, and packet switching client/server computing, packet switching, and HTTP e-mail, instant messaging, and newsgroups
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client/server computing, packet switching, and the development of communications standards for linking networks and computers
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The WiMax standard can transmit up to a distance of approximately 70 miles. 30 miles. 500 meters. 5 miles. 30 meters.
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30 miles.
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A computer network consists of at least three computers. True False
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False
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Coaxial cable is similar to that used for cable television and consists of thickly insulated copper wire. True False
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True
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An NOS must reside on a dedicated server computer in order to manage a network. True False
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False
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TCP/IP was developed in the 1960s to enable university scientists to locate other computers on the Internet. True False
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False
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A network that covers entire geographical regions is most commonly referred to as a(n) wide area network. MAN. intranet. local area network. peer-to-peer network.
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wide area network.
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Digital subscriber lines are assigned to every computer on the Internet. are very-high-speed data lines typically leased from long-distance telephone companies. operate over existing telephone lines to carry voice, data, and video. operate over coaxial cable lines to deliver Internet access. have up to twenty-four 64-Kbps channels.
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operate over existing telephone lines to carry voice, data, and video.
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Bluetooth can be used to link up to ________ devices within a 10-meter area using low-power, radio-based communication. eight five twenty two fifteen
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eight
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Shopping bots use ________ software for searching the Internet. comparison Web 3.0 SEO intelligent agent Web 2.0
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intelligent agent
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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. analog digital T1 broadband modulated
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digital
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The concept of a future Web in which it is commonplace for everyday objects to be connected, controlled or monitored over the Internet is called the Semantic Web. a 3-D Web. Internet2. the Internet of things. Web 2.0.
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the Internet of things.
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T1 lines are high-speed, leased data lines providing guaranteed service levels. operate over coaxial lines to deliver Internet access. have up to twenty-four 64-Kbps channels. operate over existing telephone lines to carry voice, data, and video. do not provide guaranteed service levels, but simply "best effort."
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are high-speed, leased data lines providing guaranteed service levels.
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A VPN provides secure, encrypted communications using Telnet. is an Internet-based service for delivering voice communications. is a proprietary networking service technology developed by individual corporations. is an encrypted private network configured within a public network. is more expensive than a dedicated network.
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is an encrypted private network configured within a public network.
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Fiber-optic cable is more expensive and harder to install than wire media. True False
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True
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The child domain of the root is the second-level domain. mid-tier domain. host name. domain extension. top-level domain.
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top-level domain.
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All of the following are physical components of an RFID system except radio transmitters. tags. bar code. a stationary or handheld device. antenna.
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bar code.
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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 ATM. multiplexing. packet shifting. packet routing. packet switching.
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packet switching.
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"Predictive search" in Google's search engine uses a knowledge graph of what similar people searched on to predict your search interests. uses a semantic approach to predict what you are looking for. predicts what you are looking for as you enter words into the query box. uses a tracking service and cookies on your browser to predict search results. maintains a history of your searches and then predicts what you will search on next.
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predicts what you are looking for as you enter words into the query box.
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________ integrate disparate channels for voice communications, data communications, instant messaging, e-mail, and electronic conferencing into a single experience. Unified communications Modems Virtual private networks Wireless networks Intranets
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Unified communications
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In the domain name "http://books.azimuth-interactive.com", which element is the second-level domain? none; there is no second-level domain in this name azimuth-interactive books.azimuth-interactive com books
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azimuth-interactive
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What service converts IP addresses into more recognizable alphanumeric names? HTML DNS FTP HTTP IP
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DNS
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Which of the following statements is not true about search engines? Users are increasingly using search engines on mobile devices. They are monetized almost exclusively by search engine marketing. There are hundreds of search engines vying for user attention, with no clear leader having yet emerged. They are arguably the Internet's "killer app." They have solved the problem of how users instantly find information on the Internet.
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There are hundreds of search engines vying for user attention, with no clear leader having yet emerged.
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Which type of network would be most appropriate for a business that comprised three employees and a manager located in the same office space, whose primary need is to share documents? SAN domain-based LAN MAN WAN peer-to-peer network
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peer-to-peer network
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Which signal types are represented by a continuous waveform? analog RFID laser digital optical
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analog
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Web 3.0 is an effort to add a layer of meaning to the existing Web in order to reduce the amount of human involvement in searching for and processing Web information. True False
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True
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Circuit switching makes much more efficient use of the communications capacity of a network than does packet switching. True False
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False
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Web browser software requests Web pages from the Internet using which protocol? FTP HTTP DNS URL HTML
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HTTP
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VoIP technology delivers voice information in digital form using packet switching. True False
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True
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________ monetizes the value of the data stored by search engines. Search engine marketing TCP/IP WiMax Wireless sensor networks RSS
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Search engine marketing
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Which process is used to protect transmitted data in a VPN? VOIP chaining PPP tunneling packet-switching
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tunneling
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RFID technology is being gradually replaced by less costly technologies such as WSNs. True False
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False
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Bandwidth is the number of cycles per second that can be sent through a medium. geographical distance spanned by a network. number of frequencies that can be broadcast through a medium. difference between the highest and lowest frequencies that can be accommodated on a single channel. total number of bytes that can be sent through a medium per second.
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difference between the highest and lowest frequencies that can be accommodated on a single channel.
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Mobile search makes up at least 50% of all Internet searches. True False
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True
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In a client/server network, a network server provides every connected client with an address so it can be found by others on the network. True False
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True
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In a large company today, you will often find an infrastructure that includes hundreds of small LANs linked to each other as well as to corporate-wide networks. True False
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True
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Together, a protocol prefix, a domain name, a directory path, and a document name, are called a(n) uniform resource locator. IP address. child domain. root domain. third-level domain.
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uniform resource locator.
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Which protocol is the Internet based on? HTTP FTP DNS packet-switching TCP/IP
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TCP/IP
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Which digital cellular standard is used widely throughout the world except the United States? WLAN 4G CDMA GSM LTD
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GSM
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A(n) ________ is software for locating and managing stored Web pages. net server hub Web server modem router
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Web server
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The total amount of digital information that can be transmitted through any telecommunications medium is measured in Hertz. bps. baud. gigaflops. RPMs.
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bps.
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Which type of network is used to connect digital devices within a half-mile or 500-meter radius? LAN Wi-Fi SAN MAN WAN
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LAN
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What are the four layers of the TCP/IP reference model? application, hardware, Internet, and network interface physical, application, Internet, and network interface application, transport, Internet, and network interface physical, application, transport, and network interface software, hardware, network interface, Internet
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application, transport, Internet, and network interface
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Which of the following is the first generation of cellular systems suitable for watching videos? 2G 2.5G 3.5G 4G 3G
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4G
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Central large mainframe computing has largely replaced client/server computing. True False
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False
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A hub is a networking device that connects network components and is used to filter and forward data to specified destinations on the network. True False
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False
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Telephone networks are fundamentally different from computer networks. True False
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True
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A network that spans a city, and sometimes its major suburbs as well, is called a LAN. WSN. MAN. WAN. CAN.
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MAN.
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________ combine the functionality of a cell phone with the computing of a laptop. Netbooks Smartphones E-readers Tablets iPods
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Smartphones
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4G networks use which standards? LTE and WiMax T-Mobile and AT&T GSM and LTD CDMA and PAN LTE and LTD
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LTE and WiMax
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The most common Web server today is WebSTAR. Apache HTTP Server. Netscape Server. Microsoft IIS. IBM HTTP Server.
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Apache HTTP Server.
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In a telecommunications network architecture, a protocol is a device that handles the switching of voice and data in a local area network. a communications service for microcomputer users. a pathway through which packets are routed. a standard set of rules and procedures for control of communications in a network. the main computer in a telecommunications network.
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a standard set of rules and procedures for control of communications in a network.
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The backbone networks of the Internet are typically owned by long-distance telephone companies called backbone providers. enhanced service providers. network service providers. regional network providers. internet bulk providers.
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network service providers.
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The process of employing techniques to help a Web site achieve a higher ranking with the major search engines is called VPN. SEM. RSS. SEO. IAB.
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SEO.
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To use the analog telephone system for sending digital data, you must also use a router. DSL. a modem. twisted wire. TCP/IP.
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a modem.
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In TCP/IP, IP is responsible for disassembling and reassembling of packets during transmission. moving packets over the network. establishing an Internet connection between two computers. breaking messages down into packets. sequencing the transfer of packets.
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disassembling and reassembling of packets during transmission.
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Wikis allow visitors to change or add to the original posted material. True False
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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. WiMax receiver RFID receiver hotspot access point hub
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access point
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The Domain Name System (DNS) converts domain names to IP addresses. True False
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True
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The device that acts as a connection point between computers and can filter and forward data to a specified destination is called a(n) modem. hub. switch. NIC. router.
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switch.
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One or more access points positioned on a ceiling, wall, or other strategic spot in a public place to provide maximum wireless coverage for a specific area are referred to as wireless hubs. hotspots. touch points. hot points. netcenters.
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hotspots.
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Two computers using TCP/IP can communicate even if they are based on different hardware and software platforms. True False
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True
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Instant messaging is a type of ________ service. network wireless chat e-mail cellular
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chat
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The number of cycles per second that can be sent through any telecommunications medium is measured in kilobytes. True False
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False
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Which organization helps define the overall structure of the Internet? IAB W3C none (no one "owns" the Internet) The Department of Commerce (U.S.) ICANN
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IAB
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What technology allows people to have content pulled from Web sites and fed automatically to their computers? FTP IPv6 RSS HTTP Bluetooth
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RSS
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Which of the following is not one of the top five search engines? Yahoo Microsoft Bing Google Ask Facebook
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Facebook
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The telephone system is an example of a ________ network. peer-to-peer wireless circuit-switched client/server packet-switched
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circuit-switched
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Based on your reading of the examples in the chapter, what would be the best use of RFID for a business? lowering network costs improving employee engagement managing the supply chain logging transactions enabling client communication
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managing the supply chain
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Web sites that enable users to share information, collaborate, and create new services and content are called ________ sites. second generation mashup first generation third generation new wave
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second generation
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Which type of network treats all processors equally and allows peripheral devices to be shared without going to a separate server? wireless peer-to-peer MAN LAN Windows domain network
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peer-to-peer
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telephone networks and computer networks moving into single digital networks using Internet standards.
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Convergence
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connections provided by telephone and cable tv companies running at 1 to 15 million bits per second.
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Broadband
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routes and manages communications on the network and coordinates network resources.
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Network operating system (NOS)
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simple devices that connect network components, sending a packet of data to all other connected devices.
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Hubs
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can filter and forward data to a specified destination on the network.
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Switch
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a communications processor that routes packets of data through different networks, ensuring that the data sent gets to the correct address.
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Router
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a networking approach in which many of the control functions are managed by one central program, which can run on inexpensive commodity servers that are separate from the network devices themselves.
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Software defined networking (SDN)
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Key digital networking technologies.
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Client/server computing, packet switching, TCP/IP and Connectivity
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a distributed computing model in which some of the processing power is located within small, inexpensive client computers and resides literally on desktops or laptops or in handheld devices.
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Client/Server computing
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a method of slicing digital messages into parcels called packets, sending the packets along different communication paths as they become available and then reassembling the packets once they arrive at their destination.
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Packet switching
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small fixed bundles of data.
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Packets
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a set of rules and procedures governing transmission of information between two points in a network.
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Protocol
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uses a suite of protocols/
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Transmission Control Protocol/ Internet Protocol (TCP/IP)
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establishes a connection between the computers, sequences the transfer of packets, and acknowledges the packets sent.
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TCP
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is responsible for the delivery of packets and includes the disassembling and reassembling of packets during the transmission.
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IP
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The layers of the TCP/IP Reference Model
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Application layer, transport layer, internet layer, network interface layer
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enables client application programs to access the other layers and defines the protocols that applications use to exchange data.
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Application layer
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responsible for providing the application layer with communication and packet services.
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Transport layer
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responsible for addressing, routing, and packaging data packets called IP datagrams.
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Internet layer
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responsible for placing packets on and receiving them from the network medium, which could be any networking technology.
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Network Interface layer
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Two computers using _________ can communicate even if they are based on different hardware and software platforms.
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TCP/IP
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a continuous waveform that passes through a communications medium and has been used for voice communication.
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Analog signal
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a discrete, binary waveform rather than a continuous waveform.
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Digital signal
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connects your computer to the internet by using a cable network.
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Modem
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Modem
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Modulator demodulator
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Types of networks
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Local area network, Metropolitan area network, Wide area network
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connect personal computers and other digital devices within a half mile or 500 meter radius.
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LANs
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typically connect a few computers in a small office, all the computers in one building, or all the computers in several buildings in close proximity.
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LANs
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treats all processors equally and is used primarily in small networks with 10 or fewer users.
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Peer to peer network
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span broad geographical distances, entire regions, states, continents, or the entire globe.
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WANs
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the most powerful WAN.
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Internet
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computers connect through public networks or through leased lines or satellite, through telephone systems or private cable systems.
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WANs
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a network that spans a metropolitan area, usually a city and its major suburbs.
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MANs
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the measurement for the number of cycles per second that can be sent through telecommunications medium.
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Hertz
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one cycle of the medium.
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One hertz
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Bits per second, rate of information transmitted.
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Bps
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The range of frequencies that can be accommodated on a particular telecommunications channel.
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Bandwidth
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the world's most extensive public communication system.
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Internet
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a commercial organization with a permanent connection to the Internet that sells temporary connections to retail subscribers.
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Internet service provider (ISP)
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operate over existing telephone lines to carry voice, data, and video at transmission rates ranging from 385 Kbps all the way up to 40 Mbps.
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Digital subscriber line (DSL)
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use digital cable coaxial lines to deliver high speed Internet access to homes and businesses.
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Cable internet connections
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leased, dedicated lines suitable for businesses or government agencies requiring high-speed guaranteed service levels.
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T1 and T3 lines
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every computer on the Internet is assigned a unique 32 bit number.
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Internet Protocol Address (IP)
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converts domain names to IP addresses.
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Domain name system (DNS)
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the English like name that corresponds to the unique 32 bit numeric IP address for each computer connected to the internet.
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Domain name
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helps define the overall structure of the Internet.
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Internet Architecture Board (IAB)
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manages the domain name system.
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Internet Corporation for Assigned Names and Numbers (ICANN)
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sets the Hypertext Markup Language and other programming standards for the web.
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World Wide Web Consortium (W3C)
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contains 128 bit addresses, or more than a quadrillion possible unique addresses.
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Internet Protocol version 6 (IPv6)
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an advanced networking consortium representing more than 500 universities, private businesses, and government agencies working with 66,000 institutions across the United States and international networking partners from more than 100 countries.
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Internet2
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own trunk lines
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Network service providers
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Internet services
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Email, chatting and instant messaging, electronic discussion groups, Telnet, File Transfer Protocol, Web
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enables messages to be exchanged from computer to computer
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Email
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enables two or more people who are simultaneously connected to the Internet to hold live, interactive conversations.
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Chatting
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a type of chat service that enables participants to create their own private chat channels.
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Instant messaging
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logging on to one computer system and doing work on another
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Telnet
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Transferring files from computer to computer
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File Transfer Protocol (FTP)
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Retrieving, formatting, and displaying information by using hypertext links.
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World Wide Web
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discussion groups on electronic bulletin boards.
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Newsgroups
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delivers voice information in digital form using packet switching, avoiding the tolls charged by local and long-distance telephone networks.
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Voice over IP (VoIP)
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enables calls to be made and received with computer equipped with a microphone and speakers.
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VoIP
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integrates disparate channels for voice communications, data communications, instant messaging, email, and electronic conferencing into a single experience by which users can seamlessly switch back and forth between different communication modes.
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Unified communications
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a secure, encrypted, private network that has been configured within a public network to take advantage of the economics of scale and management facilities of large networks.
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Virtual private network (VPN)
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a process in which packets of data are encrypted and wrapped inside IP packets.
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Tunneling
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a collection of web pages linked to a home page.
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Website
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the communications standard that transfers pages on the web.
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Hypertext Transfer Protocol (HTTP)
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the web address that help the browser track down the requested page.
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Uniform resource locator (URL)
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software for locating and managing web pages
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Web servers
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finds useful information on the web nearly instantly.
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Search engines
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made up 50 percent of all searches in 2015.
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Mobile search
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a search engine that is capable of understanding what we are really looking for.
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Semantic search
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guesses what you are looking form and suggests search terms as you type your search words.
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Predictive search
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provides fewer, more relevant, and trustworthy search results based on a person's network of social contacts.
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Social search
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websites such as Pinterest, where pictures replace text documents.
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Visual web
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use intelligent agent software for searching the Internet for shopping information.
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Shopping bots
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the sponsored links that appear when you do a search.
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Search engine marketing
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the process of improving the quality and volume of web traffic to a website by employing a series of techniques that help a website achieve a higher ranking with the major search engines when certain keywords and phrases are put into the search field.
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Search engine optimization (SEO)
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Second generation interactive Internet based services that allow people to collaborate, share information, and create new services and content online.
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Web 2.0
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the four defining features of Web 2.0
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Interactivity, real time user control, social participation, user generated content
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a personal website that typically contains a series of chronological entries by its author and links to related web pages.
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Blog
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a type of blogging that features short posts of 140 characters or fewer.
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Microblogging
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The totality of blog related websites.
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Blogosphere
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pulls specified content from websites and feeds it automatically to users' computers.
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RSS
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collaborative websites on which visitors can add, delete, or modify content, including the work of previous authors.
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Wikis
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enables users to build communities of friends and professional colleagues.
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Social networking
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based on billions of Internet connected sensors throughout our physical world.
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Internet of Things
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links up to eight devices within a 10 meter area using low power, radio based communication.
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Personal area networks (PAN)
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wireless devices communicate with a wired LAN using access points.
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WiFi
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locations with one or more access points providing wireless Internet access and are often in public places.
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Hotspots
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has a wireless range of up to 31 miles and transmission speed of up to 75 Mbps.
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WiMax
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uses tiny tags with embedded microchips containing data about an item and its location to transmit radio signals over a short distance to the readers.
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Radio frequency identification (RFID)
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networks of interconnected wireless devices that are embedded in the physical environment to provide measurements of many points over large spaces.
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Wireless sensor networks (WSNs)
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major sources of Big Data and fueling Internet of Things
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Wireless sensor networks
