Chapter 7

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

".", com, blogging, myspace

The most appropriate wireless networking standard for creating PANs is - I-mode. - IEEE 802.11b. - WiFi. - Bluetooth.

Bluetooth.

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

False

Which type of network is used to connect digital devices within a half-mile or 500-meter radius? - microwave - LAN - WAN - MAN

LAN

Which of the following services enables logging on to one computer system and working on another? - FTP - LISTSERV - Telnet - World Wide Web

Telnet

A protocol is a standard set of rules and procedures for the control of communications in a network. - True - False

True

________ 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

Unified communications

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

peer-to-peer

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.

switch.

The WiMax standard can transmit up to a distance of approximately - 30 meters. - 500 meters. - 30 miles. - 5 miles.

30 miles.

Which generation of network are wireless cellular phone systems entering? - 2.5G - 3G - 3.5G - 4G

3G

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.

54 Mbps in the 5-GHz frequency range.

The open-source Web server that controls 70 percent of the market is - Microsoft IIS. - ASP.net. - Apache HTTP server. - Netscape

Apache HTTP server.

The open-source Web server that controls 70 percent of the market is - Microsoft IIS. - ASP.net. - Apache HTTP server. - Netscape.

Apache HTTP server.

________ work(s) by using radio waves to communicate with radio antennas placed within adjacent geographic areas. - Cell phones - Microwaves - Satellites - WANs

Cell phones

What service converts IP addresses into more recognizable alphanumeric names? - HTML - DNS - IP - HTTP

DNS

Circuit switching makes much more efficient use of the communications capacity of a network than does packet switching. - True - False

False

RFID has been exceptionally popular because of its low implementation costs. - True - False

False

The number of cycles per second that can be sent through any telecommunications medium is measured in kilobytes. - True - False

False

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

False

VoIP technology delivers video information in digital form using packet switching. - True - False

False

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

False

WiMax has a wireless access range of up to 300 feet. - True - False

False

Web browser software requests Web pages from the Internet using which protocol? - URL - HTTP - DNS - HTML

HTTP

Which organization helps define the overall structure of the Internet? - None (no one "owns" the Internet) - W3C - ICANN - IAB

IAB

The IEEE standard for the WiMax is - IEEE 802.15. - IEEE 802.11. - IEEE 802.16. - IEEE 802.20.

IEEE 802.16.

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.

Packet switching requires point-to-point circuits.

What technology allows people to have content pulled from Web sites and fed automatically to their computers? - FTP - RSS - HTTP - Bluetooth

RSS

Coaxial cable is similar to that used for cable television and consists of thickly insulated copper wire. - True - False

True

Fiber-optic cable is more expensive and harder to install than wire media. - True - False

True

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

True

Increasingly, voice, video, and data communications are all based on Internet technology. - True - False

True

Telephone networks are fundamentally different from computer networks. - True - False

True

To connect two computers together in the same office, you must have a computer network. - True - False

True

To use an analog telephone system for sending digital data, you must us - a modem. - a router. - DSL. - twisted wire.

a modem.

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.

a standard set of rules and procedures for control of communications in a network.

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.

create more IP addresses.

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

difference between the highest and lowest frequencies that can be accommodated on a single channel.

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.

difference between the highest and lowest frequencies that can be accommodated on a single channel.

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.

disassembling and reassembling of packets during transmission.

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

eight

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.

have a range of several feet.

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.

hotspots.

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.

is an encrypted private network configured within a public network.

Which signal types are represented by a continuous waveform? - laser - optical - digital - analog

laser

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.

need to base their Internet use policies on the needs of the organization and culture.

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.

operate over existing telephone lines to carry voice, data, and video.

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.

packet switching.

The child domain of the root is the - top-level domain. - second-level domain. - host name. - domain extension.

top-level domain.

CDMA - is the major European digital cellular standard. - is more expensive than GSM. - transmits over several frequencies. - uses the 1.9 GHz band.

transmits over several frequencies.

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.

wide area network.