Chapter 7 – College Essay Test Answers
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In TCP/IP, IP is responsible for - disassembling and reassembling of packets during transmission. - establishing an Internet connection between two computers. - moving packets over the network. - sequencing the transfer of packets.
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disassembling and reassembling of packets during transmission.
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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? - "http://", myspace, blogging, com - "http://", com, blogging, myspace - ".", com, blogging, myspace - ".", myspace, blogging, com
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".", com, blogging, myspace
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Bandwidth is the - number of frequencies that can be broadcast through a medium. - number of cycles per second that can be sent 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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The open-source Web server that controls 70 percent of the market is - Microsoft IIS. - ASP.net. - Apache HTTP server. - Netscape
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Apache HTTP server.
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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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The child domain of the root is the - top-level domain. - second-level domain. - host name. - domain extension.
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top-level domain.
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Which of the following services enables logging on to one computer system and working on another? - FTP - LISTSERV - Telnet - World Wide Web
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Telnet
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________ integrate(s) disparate channels for voice communications, data communications, instant messaging, e-mail, and electronic conferencing into a single experience. - Wireless networks - Intranets - Virtual private networks - Unified communications
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Unified communications
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Digital subscriber lines - operate over existing telephone lines to carry voice, data, and video. - operate over coaxial lines to deliver Internet access. - are very-high-speed data lines typically leased from long-distance telephone companies. - 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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A network that covers entire geographical regions is most commonly referred to as a(n): - local area network. - intranet. - peer-to-peer network. - wide area network.
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wide area network.
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To use an analog telephone system for sending digital data, you must us - a modem. - a router. - DSL. - twisted wire.
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a modem.
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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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A hub is a networking device that connects network components and are used to filter and forward data to specified destinations on the network. - True - False
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False
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CDMA - is the major European digital cellular standard. - is more expensive than GSM. - transmits over several frequencies. - uses the 1.9 GHz band.
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transmits over several frequencies.
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A VPN - is an encrypted private network configured within a public network. - is more expensive than a dedicated network. - provides secure, encrypted communications using Telnet. - is an Internet-based service for delivering voice communications.
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is an encrypted private network configured within a public network.
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VoIP technology delivers video information in digital form using packet switching. - 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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What service converts IP addresses into more recognizable alphanumeric names? - HTML - DNS - IP - HTTP
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DNS
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The Wi-Fi 802.11a standard can transmit up to - 54 Mbps in the 5-GHz frequency range. - 11 Mbps in the 2.4-GHz frequency range. - 54 Mbps in the 2.4-GHz frequency range. - 722 Kbps in the 2.4-GHz frequency range.
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54 Mbps in the 5-GHz frequency range.
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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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________ work(s) by using radio waves to communicate with radio antennas placed within adjacent geographic areas. - Cell phones - Microwaves - Satellites - WANs
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Cell phones
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Which generation of network are wireless cellular phone systems entering? - 2.5G - 3G - 3.5G - 4G
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3G
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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 standard set of rules and procedures for control of communications in a network. - a communications service for microcomputer users. - 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 WiMax standard can transmit up to a distance of approximately - 30 meters. - 500 meters. - 30 miles. - 5 miles.
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30 miles.
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The IEEE standard for the WiMax is - IEEE 802.15. - IEEE 802.11. - IEEE 802.16. - IEEE 802.20.
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IEEE 802.16.
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WiMax has a wireless access range of up to 300 feet. - True - False
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False
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Increasingly, voice, video, and data communications are all based on Internet technology. - True - False
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True
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What technology allows people to have content pulled from Web sites and fed automatically to their computers? - FTP - RSS - HTTP - Bluetooth
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RSS
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The success of the Internet is in part due to its design as an infinitely scalable network capable of handling millions of users. - True - False
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False
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A protocol is a standard set of rules and procedures for the control of communications in a network. - True - False
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True
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Passive RFID tags - have their own power source. - have a range of several feet. - enable data to be rewritten and modified. - are used in automated toll-collection systems.
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have a range of several feet.
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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? - "http://", myspace, blogging, com - "http://", com, blogging, myspace - ".", com, blogging, myspace - ".", myspace, blogging, com
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".", com, blogging, myspace
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Increasingly, voice, video, and data communications are all based on Internet technology. - True - False
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True
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A hub is a networking device that connects network components and are used to filter and forward data to specified destinations on the network. - True - False
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False
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A device that acts as a connection point between computers and can filter and forward data to a specified destination is called a - hub. - switch. - router. - NIC.
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switch.
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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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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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Which organization helps define the overall structure of the Internet? - None (no one "owns" the Internet) - W3C - ICANN - IAB
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IAB
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What service converts IP addresses into more recognizable alphanumeric names? - HTML - DNS - IP - HTTP
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DNS
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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 - touch points. - hotspots. - hot points. - wireless hubs.
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hotspots.
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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 need in some cases for employees to have access to sexually explicit material on the Internet, such as medical researchers, suggests that companies - cannot restrict Internet use. - need specialized software to determine which types of material are acceptable. - may need to maintain a database of acceptable Web sites. - need to base their Internet use policies on the needs of the organization and culture.
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need to base their Internet use policies on the needs of the organization and culture.
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Web 2.0 is the collaborative effort led by the World Wide Web Consortium to add a layer of meaning atop the existing Web to reduce the amount of human involvement in searching for and processing Web information. - True - False
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False
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The most appropriate wireless networking standard for creating PANs is - I-mode. - IEEE 802.11b. - WiFi. - Bluetooth.
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Bluetooth.
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IPv6 is being developed in order to - update the packet transmission protocols for higher bandwidth. - create more IP addresses. - allow for different levels of service. - support Internet2.
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create more IP addresses.
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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 signal types are represented by a continuous waveform? - laser - optical - digital - analog
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laser
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Which of the following is NOT a characteristic of packet switching? - Packets travel independently of each other. - Packets are routed through many different paths. - Packet switching requires point-to-point circuits. - Packets include data for checking transmission errors.
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Packet switching requires point-to-point circuits.
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The IEEE standard for the WiMax is - IEEE 802.15. - IEEE 802.11. - IEEE 802.16. - IEEE 802.20.
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IEEE 802.16.
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Web browser software requests Web pages from the Internet using which protocol? - URL - HTTP - DNS - HTML
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HTTP
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Bandwidth is the - number of frequencies that can be broadcast through a medium. - number of cycles per second that can be sent 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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A network that covers entire geographical regions is most commonly referred to as a(n): - local area network. - intranet. - peer-to-peer network. - wide area network.
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wide area network.
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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 - multiplexing. - packet switching. - packet routing. - ATM.
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packet switching.
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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? - peer-to-peer - wireless - LAN - ring
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peer-to-peer
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To connect two computers together in the same office, you must have a computer network. - True - False
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True
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Bluetooth can be used to link up to ________ devices within a 10-meter area using low-power, radio-based communication. - four - six - eight - ten
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eight
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The open-source Web server that controls 70 percent of the market is - Microsoft IIS. - ASP.net. - Apache HTTP server. - Netscape.
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Apache HTTP server.
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The WiMax standard can transmit up to a distance of approximately - 30 meters. - 500 meters. - 30 miles. - 5 miles.
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30 miles.
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Which type of network is used to connect digital devices within a half-mile or 500-meter radius? - microwave - LAN - WAN - MAN
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LAN
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RFID has been exceptionally popular because of its low implementation costs. - True - False
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False
