BUS 401 Chp 7

The case study of Dartmouth College's upgrading its networks illustrates the business use of wireless technology to:a. Save costsb.

Enhance learningc. Provide cell phone serviced. Provide cable television

A computer on a network that performs important network functions for clientcomputers, such as serving up Web pages, storing data, and storing the network operating system, is called a:a.

Server computerb. NOSc. Hubd. Router

A device that acts as a connection point between computers and can filter and forward data to a specified destination is called a:a.

Hubb. Switchc. Routerd. NIC

Which device connects multiple computers in a network?a.

Network interface cardb. Network hubc. Ethernet cardd. None of the above.

The most important communication standard today for linking disparate computers and networks is:a.

Transmission Control Protocol/Internet Protocol (TCP/IP).b. International Standards Organization (ISO).c. Open Systems Interconnection (OSI).d.

File Transfer Protocol (FTP).

The Internet is based on the following three key technologiesa.

TCP/IP, HTML, HTTPb. TCP/IP, HTTP, and packet switchingc. Client/server computing, packet switching, and the development of widely used communications standards for linking networks and computers.d. Client/server computing, packet switching, and HTTP.

The method of slicing digital messages into parcels, transmitting them along different communication paths, and reassembling them at their destinations is called:a. Multiplexingb. Packet switchingc. Packet routingd.

ATM

The telephone system is an example of a:a. Peer-to-peer networkb. Frame relay networkc.

Packet-switched networkd. Circuit-switched network

Which of the following is NOT a characteristic of packet switching?a. Uses packets of different sizesb.

Packets are routed through many different pathsc. Requires dedicated circuitsd. Packets include data for checking transmission errors

The four layers of the TCP/IP reference model are:a. Physical layer, application layer, transport layer, network interface layerb. Physical layer, application layer, Internet layer, network interface layerc.

Application layer, transport layer, Internet layer, network interface layerd. Application layer, hardware layer, Internet layer, network interface layer

In TCP/IP, IP is responsible for:a. Disassembling and reassembling of packets during transmissionb. Establishing an Internet connection between two computersc. Moving packets over the networkd.

Sequencing the transfer of packets

In a telecommunications network architecture, a protocol is:a. A device that handles the switching of voice and data in a local area network.b.

A standard set of rules and procedures for control of communications in a network.c. A communications service for microcomputer users.d. The main computer in a telecommunications network.

This is the simplest and slowest type of telecommunications media:a. Twisted-pair.

b. Coaxial cable.c. Fiber optics.

d. Microwave.

A communications medium that uses one or more copper wires surrounded by thick insulation is:a. Twisted-pair cable.

b. A satellite.c. Optical fiber.

d. Coaxial cable.

The part of a network that handles the major traffic is:a. Front end.b. Backbone.c. Network interface.

d. Multiplexer.

These signals are represented by a continuous waveform:a. Laserb. Opticalc. Digitald. Analog

Data is sent through the fiber-optic cable by a:a.

Routerb. Laser devicec. Optical deviced. Multiplexer

To use an analog telephone system for sending digital data, you must use:a. A modemb. TFPc. DSLd.

Twisted wire

Which technology will enable communications service providers to add transmission capacity to an existing fiber-optic network without having to lay more fiber-optic cable?a. ATMb. DWDMc. CDMAd.

WAP

BP Amoco uses __________________ for real-time data transfer of oil field exploration data gathered from searches of the ocean floor.a. Fiber opticsb.

Bluetooth technologyc. Wi-Fi technologyd. Satellites

Multiplexing can be defined as a:a. specialized computer to supervise communication traffic between the CPU and the peripheral device in the telecommunications system.

b. device that carries the telecommunication message in analog form for packet distribution.c. technology that enables a single communications channel to carry data transmissions from multiple sources simultaneously.d.

special purpose computer dedicated to managing communications for the hostcomputer in the network.

Which type of network can transmit all types of traffic-voice, data, and video-over fiber cables and provide the massive bandwidth for new types of services and software?a.

Opticalb. Fiber-opticc. Satellited. Wireless

Which type of signals follow a straight line and do not bend with the curve of the Earth?a.

Radiob. Satellitec. Microwaved. Fiber-Optic

What type of transmission technology is used in relay stations for terrestrial microwave transmission?a.

Satelliteb. Cellularc. DWDMd. Fiber Optic

The difference between the highest and lowest frequencies that can be accommodated on a single channel is called its:a.

Clock speed.b. Hertz.c. Baud.d.

Bandwidth.

_____________ work by using radio waves to communicate with radio antennas placed within adjacent geographic areasa. Cell phonesb. Microwavec.

Satellitesd. WANs

Bandwidth is:a. the number of frequencies that can be broadcast through a medium.b.

the number of cycles per second that can be sent through a medium.c. the difference between the highest and lowest frequencies that can be accommodated on a single channel.d. the total number of bytes that can be sent through a medium per second.

The total amount of digital information that can be transmitted through anytelecommunications medium is measured in:a. Bps.b. Hertz.

c. Baud.d. Gigaflops.

Which type of network is used to connect digital devices within a half-mile or 500-meter radius?a. Microwaveb.

LANc. WANd. MAN

TCP/IP stands for:a.

transmission Control Protocol/Internet Protocol.b. transmission Control Protocol/Internet Packets.c.

transfer Control Protocol/Internet Protocol.d. transfer Control Protocol/Internet Packets.

Which type of network treats all processors equally, and allows peripheral devices to beshared without going to a separate server?a.

Peer-to-peerb. Wirelessc. LANd. Ring

All network components connect to a single hub in a:a. Star networkb.

Bus networkc. Domain networkd. Peer-to-peer network

In a bus network:a. Signals are broadcast to the next stationb.

Signals are broadcast in both directions to the entire networkc. Multiple hubs are organized in a hierarchyd. Messages pass from computer to computer in a loop.

A LAN:a. Is a central switching system that handles a firm's voice and digital communications.

b. Links all computers in a closed loop in a manner that passes data in one direction from one computer to another.c. Links all computers and other devices to a central host computer, through which all communications must pass.d. Connects computers and peripheral devices located close to each other, often in the same building.

A network that spans a city, and sometimes its major suburbs as well, is an example of a:a. CANb. MANc. WANd. LAN

A network that covers a large geographic area is most commonly referred to as a(n):a. Local area network.b. Intranet.

c. Peer-to-peer.d. Wide area network.

A peer-to-peer network architecture:a. Gives equal power to all computers on the network and is used primarily in smallnetworks.b.

Spans a large geographical distance and may consist of a variety of mediatechnologies.c. Is a private, multipath, data-only, third-party-managed network that multipleorganizations use on a subscription basis.d.

Has the technology to enable voice and data to run over a single network.

A bus network:a. Links all computers in a closed loop in a manner that passes data in one direction from one computer to another.b.

Links all computers and other devices to a central hub, through which allcommunications must pass.c. Connects computers and peripheral devices located close to each other, often in the same building.d.

Links a number of computers by a single circuit with all messages broadcast to theentire network.

The most common LAN operating systems are:a. Windows XP, Unix, and Macb. Windows XP, Linux, and Novellc.

Windows, Unix, and Macd. Windows, Linux, and Novell

In the domain network model:a. a small group of computers shares resources over the network without a server.

b. a dedicated server manages the network computers.c. computers can share peripheral devices without going through a separate server.

d. all devices on the network connect to a single hub.

Which transmission technology parcels information into fixed 53-byte cells?a.

ISDNb. ATMc. Frame relayd. DSL

The most common Ethernet topology is:a. Bus.

b. Star.c. Ring.d.

Mesh.

Digital subscriber lines:a.

Operate over existing telephone lines to carry voice, data, and videob. Operate over coaxial lines to deliver Internet accessc. Are very-high-speed data lines typically leased from long-distance telephone companiesd. Have up to twenty-four 64-Kbps channels

ISDN:a. is an international telephone standard that uses coaxial cabling in place of twisted pair wiring to achieve higher transmission rates.b. integrates voice, data, image, and video services.c. is cheaper, although less powerful, than DSL Internet services.

d. is cheaper, although less powerful, than Cable Internet services.

T lines:a. operate over existing telephone lines to carry voice, data, and video.b. operate over coaxial lines to deliver Internet access.c. are very-high-speed data lines typically leased from long-distance telephonecompanies.

d. have up to twenty-four 64-Kbps channels.

Which protocol is the Internet based on?a.

TCP/IPb. FTPc. Packet-switchingd. Frame relay

What service converts IP addresses into more recognizable alphanumeric names?a. HTMLb. DNSc. FTPd. HTTP

In the domain name "http://myspace.

blogging.com", what are the root, top-level, secondlevel, and third-level domains, respectively?a. "http://", myspace, blogging, coma. "http://", com, blogging, myspacec. ".", com, blogging, myspaced.

".", myspace, blogging, com

The child domain of the root is the:a. Top-level domainb.

Second-level domainc. Host named. Domain extension

Which organization helps define the overall structure of the Interneta.

None, no one "owns" the Internet.b. W3Cc. ICANNd.

IAB

Which of the following services enables discussion groups on electronic bulletin boards?a. LISTSERVb. Usenet newsgroupsc. Telnetd.

Instant messaging

The IPv6 is being developed in order to:a. Update the packet transmission protocols for higher bandwidthb. Create more IP addressesc. Allow for different levels of serviced.

Support Internet2

Which of the following services enables logging on to one computer system and working on another?a. FTPb. LISTSERVc. Telnetd.

World Wide Web

The Internet is based on client/server technology in which:a. All the data resides on serversb. Some data, such as e-mail messages, resides on client computersc. Applications reside on servers and all data resides on client computersd.

All data resides on servers and applications reside on client computers.

Web browser software requests Web pages from the Internet using which protocol?a. URLb. HTTPc. DNSd.

HTML

Together, a protocol prefix, a domain name, a directory path, and a document name, are called a:a. Uniform resource locatorb. Unified resource locatorc. Third-level domaind.

Root domain

The open-source Web server that controls 70 percent of the market is:a. Microsoft IISb. ASP.netc. Apache HTTP serverd.

Netscape

What technology allows people to have content pulled from Web sites and fedautomatically to their computers?a. FTPb. RSSc. LISTSERVd. Bluetooth

The paid sponsored links delivered with search results is a form of:a. shopping bot marketing.b. search engine marketing.c. targeted marketing.

d. search results marketing.

Instant messaging is a type of:a.

chat service.b. cellular service.c. Web service.d.

wireless service.

To keep internal data secure, a company employing an extranet must be sure to put a(n) _________________ in place.

a. Web browserb. administrative computerc. firewalld. applications protocol

A network that links a business with its customers, suppliers, and other business partners is called:a.

Intranet.b. Extranet.c. Collaboration net.

d. Virtual private network.

Which technology uses the Internet protocol to deliver voice information in digital form using packet-switching?a. TCP/IPb.

VPNc. VoIPd. HTTP

For corporations, one of the drawbacks to the worldwide explosion of e-mail use is:a.

Lack of standards for inter-office useb. Server storage space clogged with e-mailsc. Too much bandwidth used by e-mailsd. Excessive personal use of e-mail in the workplace

A VPN:a. Is an encrypted private network configured within the public Internetb.

Is more expensive than a dedicated networkc. Provides secure, encrypted communications using Telnetd. Is an Internet-based service for delivering voice communications.

Wireless cellular phone systems are entering this generation of networks:a.

2G.b. 3G.c.

4G.d. 5G.

CDMAa. Is the major European digital cellular standardb. Is more expensive than GSMc. Transmits over several frequenciesd.

Uses the 1.9 GHz band

Which cellular network has enough transmission capacity for video, graphics, and other rich media in addition to voice?a. 3G networksb.

2.5 G networksc. GSMd. CDMA

The most appropriate wireless networking standard for creating PANs is:a.

I-modeb. IEEE 802.11bc. WiFid. Bluetooth

To deliver Internet content, I-mode uses:a. WAPb. WMLc. Compact XMLd.

Compact HTML

Bluetooth is the popular name for this IEEE standard:a. IEEE 802.15.

b. IEEE 802.11.c. IEEE 802.16.d. IEEE 802.20.

Bluetooth can be used to link up to __________________ devices within a 10-meter area using low-power, radio-based communication.a. fourb. sixc. eightd. ten

The Wi-Fi 802.11a standard can transmit up to:a. 54 Mbps in the unlicensed 5-GHz frequency rangeb. 11 Mbps in the unlicensed 2.4-GHz rangec. 54 Mbps in the 2.4-GHz range.d. 722 Kbps in the 2.4-GHz range.

The Wi-Fi 802.11b standard can transmit up to:a. 54 Mbps in the unlicensed 5-GHz frequency range and has an effective distance of 10 to 30 meters.b. Can transmit up to 11 Mbps in the unlicensed 2.4-GHz band and has an effective distance of 30 to 50 meters.c. Can transmit up to 54 Mbps in the 2.4-GHz range.d. Can transmit up to 722 Kbps in the 2.4-GHz range.

A Wi-Fi system can operate in two different modes. Ad-hoc mode is also known as:a. Peer-to-peer mode.b. Local area network mode.c. Wide area network mode.d. Metropolitan area network mode.

Each access point and its wireless devices are known as a:a. BSSb. WSSc. WAPd. PAN

Why are products built for 802.11b and 802.11g compatible?a. They have the same transmission capacity and rangesb. They are both based on WAPc. They are both part of the 802.11 family of standardsd. They use the same frequency band

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:a. Wireless spotsb. Hotspots.c. Hotpoints.d. Wireless hubs.

The IEEE standard for the WiMax is:a. IEEE 802.15.b. IEEE 802.11.c. IEEE 802.16.d. IEEE 802.20.

The WiMax standard can transmit up to a distance of:a. 10 to 30 meters.b. 30 to 50 meters.c. 31 miles.d. 100 miles.

EV-DO provides wireless access to the Internet over a cellular network at an average speed of:a. 10 - 19 Kbps.b. 54 - 144 Kbps.c. 144 Kbps - 2+ Mbps.d. 300 - 500 Kbps.

In a RFID system, a(n) ____________________ is electronically programmed with information that can uniquely identify an item, such as an electronic code.a. Readerb. Antennac. Microchipd. Transponder

Automated toll-collection systems use these types of RFID tags:a. Reactive.b. Passive.c. High frequencyd. Low frequency

RFID tag costs are currently:a. Between $1.00 and $20.00 each.b. Between $20.00 and $50.00 each.c. About 19 cents.d. Under 5 cents.

Which technologies are helping Transalta maintain its equipment?a. Cell phones and PDAsb. Personal area networksc. RFID and wireless technologyd. Satellites and PDAs

Based on your reading of the examples in the chapter, what would be the best use of RFID for a business?a. Transactionsb. Supply chain managementc. Lowering network costsd. Enabling client communication