Chapter 7

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.

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

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

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

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

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

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

________ 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

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.

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.

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

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

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

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

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.

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

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

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

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.

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

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

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

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.

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

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

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

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

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

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

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

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.

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

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

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

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.

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

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

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

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

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.

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

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.

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

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

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.

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

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

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.

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

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

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.

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.

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.

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

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

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

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

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

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

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