Chapter 7 – College Essay Test Answers

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question
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.
answer
disassembling and reassembling of packets during transmission.
question
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
answer
".", 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
answer
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
answer
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.
answer
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
answer
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.
answer
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
answer
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
answer
Cell phones
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Which generation of network are wireless cellular phone systems entering? - 2.5G - 3G - 3.5G - 4G
answer
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.
answer
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.
answer
IEEE 802.16.
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WiMax has a wireless access range of up to 300 feet. - True - False
answer
False
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Increasingly, voice, video, and data communications are all based on Internet technology. - True - False
answer
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
answer
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
answer
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
answer
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.
answer
have a range of several feet.
question
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
answer
".", com, blogging, myspace
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Increasingly, voice, video, and data communications are all based on Internet technology. - True - False
answer
True
question
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
answer
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.
answer
switch.
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Coaxial cable is similar to that used for cable television and consists of thickly insulated copper wire. - True - False
answer
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
answer
True
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Which organization helps define the overall structure of the Internet? - None (no one "owns" the Internet) - W3C - ICANN - IAB
answer
IAB
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What service converts IP addresses into more recognizable alphanumeric names? - HTML - DNS - IP - HTTP
answer
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.
answer
hotspots.
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Fiber-optic cable is more expensive and harder to install than wire media. - True - False
answer
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.
answer
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
answer
False
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The most appropriate wireless networking standard for creating PANs is - I-mode. - IEEE 802.11b. - WiFi. - Bluetooth.
answer
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.
answer
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
answer
False
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Which signal types are represented by a continuous waveform? - laser - optical - digital - analog
answer
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.
answer
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.
answer
IEEE 802.16.
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Web browser software requests Web pages from the Internet using which protocol? - URL - HTTP - DNS - HTML
answer
HTTP
question
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.
answer
difference between the highest and lowest frequencies that can be accommodated on a single channel.
question
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.
answer
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.
answer
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
answer
peer-to-peer
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To connect two computers together in the same office, you must have a computer network. - True - False
answer
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
answer
eight
question
The open-source Web server that controls 70 percent of the market is - Microsoft IIS. - ASP.net. - Apache HTTP server. - Netscape.
answer
Apache HTTP server.
question
The WiMax standard can transmit up to a distance of approximately - 30 meters. - 500 meters. - 30 miles. - 5 miles.
answer
30 miles.
question
Which type of network is used to connect digital devices within a half-mile or 500-meter radius? - microwave - LAN - WAN - MAN
answer
LAN
question
RFID has been exceptionally popular because of its low implementation costs. - True - False
answer
False
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