The case study of Dartmouth College’s upgrading its networks illustrates the business use of wireless technology to:
a. Save costs
b. Enhance learning
c. Provide cell phone service
d. Provide cable television
computers, such as serving up Web pages, storing data, and storing the network operating system, is called a:a. Server computer
A device that acts as a connection point between computers and can filter and forward data to a specified destination is called a:
Which device connects multiple computers in a network?
a. Network interface card
b. Network hub
c. Ethernet card
d. 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 technologies
a. TCP/IP, HTML, HTTP
b. TCP/IP, HTTP, and packet switching
c. 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:
b. Packet switching
c. Packet routing
The telephone system is an example of a:
a. Peer-to-peer network
b. Frame relay network
c. Packet-switched network
d. Circuit-switched network
Which of the following is NOT a characteristic of packet switching?
a. Uses packets of different sizes
b. Packets are routed through many different paths
c. Requires dedicated circuits
d. 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 layer
b. Physical layer, application layer, Internet layer, network interface layer
c. Application layer, transport layer, Internet layer, network interface layer
d. Application layer, hardware layer, Internet layer, network interface layer
In TCP/IP, IP is responsible for:
a. Disassembling and reassembling of packets during transmission
b. Establishing an Internet connection between two computers
c. Moving packets over the network
d. 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:
b. Coaxial cable.
c. Fiber optics.
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.
c. Network interface.
These signals are represented by a continuous waveform:
Data is sent through the fiber-optic cable by a:
b. Laser device
c. Optical device
To use an analog telephone system for sending digital data, you must use:
a. A modem
d. 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?
BP Amoco uses __________________ for real-time data transfer of oil field exploration data gathered from searches of the ocean floor.
a. Fiber optics
b. Bluetooth technology
c. Wi-Fi technology
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 host
computer 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?
Which type of signals follow a straight line and do not bend with the curve of the Earth?
What type of transmission technology is used in relay stations for terrestrial microwave transmission?
d. Fiber Optic
The difference between the highest and lowest frequencies that can be accommodated on a single channel is called its:
a. Clock speed.
_____________ work by using radio waves to communicate with radio antennas placed within adjacent geographic areas
a. Cell phones
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.
telecommunications medium is measured in:a. Bps.
Which type of network is used to connect digital devices within a half-mile or 500-meter radius?
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.
shared without going to a separate server?a. Peer-to-peer
All network components connect to a single hub in a:
a. Star network
b. Bus network
c. Domain network
d. Peer-to-peer network
In a bus network:
a. Signals are broadcast to the next station
b. Signals are broadcast in both directions to the entire network
c. Multiple hubs are organized in a hierarchy
d. Messages pass from computer to computer in a loop.
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 network that covers a large geographic area is most commonly referred to as a(n):
a. Local area network.
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 small
b. Spans a large geographical distance and may consist of a variety of media
c. Is a private, multipath, data-only, third-party-managed network that multiple
organizations 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 all
communications 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 the
The most common LAN operating systems are:
a. Windows XP, Unix, and Mac
b. Windows XP, Linux, and Novell
c. Windows, Unix, and Mac
d. 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?
c. Frame relay
The most common Ethernet topology is:
Digital subscriber 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 telephone companies
d. Have up to twenty-four 64-Kbps channels
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.
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 telephone
d. have up to twenty-four 64-Kbps channels.
Which protocol is the Internet based on?
d. Frame relay
What service converts IP addresses into more recognizable alphanumeric names?
In the domain name “http://myspace.blogging.com”, what are the root, top-level, secondlevel, and third-level domains, respectively?
a. “http://”, myspace, blogging, com
a. “http://”, com, blogging, myspace
c. “.”, com, blogging, myspace
d. “.”, myspace, blogging, com
The child domain of the root is the:
a. Top-level domain
b. Second-level domain
c. Host name
d. Domain extension
Which organization helps define the overall structure of the Internet
a. None, no one “owns” the Internet.
Which of the following services enables discussion groups on electronic bulletin boards?
b. Usenet newsgroups
d. Instant messaging
The IPv6 is being developed in order to:
a. Update the packet transmission protocols for higher bandwidth
b. Create more IP addresses
c. Allow for different levels of service
d. Support Internet2
Which of the following services enables logging on to one computer system and working on another?
d. World Wide Web
The Internet is based on client/server technology in which:
a. All the data resides on servers
b. Some data, such as e-mail messages, resides on client computers
c. Applications reside on servers and all data resides on client computers
d. All data resides on servers and applications reside on client computers.
Web browser software requests Web pages from the Internet using which protocol?
Together, a protocol prefix, a domain name, a directory path, and a document name, are called a:
a. Uniform resource locator
b. Unified resource locator
c. Third-level domain
d. Root domain
The open-source Web server that controls 70 percent of the market is:
a. Microsoft IIS
c. Apache HTTP server
automatically to their computers?a. FTP
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 browser
b. administrative computer
d. applications protocol
A network that links a business with its customers, suppliers, and other business partners is called:
c. Collaboration net.
d. Virtual private network.
Which technology uses the Internet protocol to deliver voice information in digital form using packet-switching?
For corporations, one of the drawbacks to the worldwide explosion of e-mail use is:
a. Lack of standards for inter-office use
b. Server storage space clogged with e-mails
c. Too much bandwidth used by e-mails
d. Excessive personal use of e-mail in the workplace
a. Is an encrypted private network configured within the public Internet
b. Is more expensive than a dedicated network
c. Provides secure, encrypted communications using Telnet
d. Is an Internet-based service for delivering voice communications.
Wireless cellular phone systems are entering this generation of networks:
a. Is the major European digital cellular standard
b. Is more expensive than GSM
c. Transmits over several frequencies
d. 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 networks
b. 2.5 G networks
The most appropriate wireless networking standard for creating PANs is:
b. IEEE 802.11b
To deliver Internet content, I-mode uses:
c. Compact XML
d. 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.
The Wi-Fi 802.11a standard can transmit up to:
a. 54 Mbps in the unlicensed 5-GHz frequency range
b. 11 Mbps in the unlicensed 2.4-GHz range
c. 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:
Why are products built for 802.11b and 802.11g compatible?
a. They have the same transmission capacity and ranges
b. They are both based on WAP
c. They are both part of the 802.11 family of standards
d. 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 spots
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.
Automated toll-collection systems use these types of RFID tags:
c. High frequency
d. 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 PDAs
b. Personal area networks
c. RFID and wireless technology
d. Satellites and PDAs
Based on your reading of the examples in the chapter, what would be the best use of RFID for a business?
b. Supply chain management
c. Lowering network costs
d. Enabling client communication