question

Telephone networks are fundamentally different from computer networks.

answer

True

question

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

answer

True

question

Firms in the past used two fundamentally different types of networks: telephone networks and computer networks.

answer

True

question

Due to continuing telecommunications deregulation and information technology innovation, telephone and computer networks are slowly converging into a single digital network using shared Internet-based standards and equipment.

answer

True

question

Increasingly, voice and data communication as well as Internet access are taking place over broadband wireless platforms, such as cell phones, handheld digital devices, and PCs in wireless networks.

answer

True

question

Each computer on the network contains a network interface device called a network operating card (NOC).

answer

False

question

Contemporary digital networks and the Internet are based on four key technologies: client/server computing, the use of packet switching, the development of widely used communications standards and PC operating systems.

answer

False

question

Pocket switching is a method of slicing digital messages into parcels called pockets, sending the pockets along different communication paths as they become available, and then reassembling the pockets once they arrive at their destinations.

answer

False

question

Packet switching makes much less efficient use of the communications capacity of a network.

answer

False

question

TCP refers to the Transmission Control Protocol (TCP), which is responsible for the delivery of packets and includes the disassembling and reassembling of packets during transmission.

answer

False

question

IP refers to the Internet Protocol (IP), establishes a connection between the computers, sequences the transfer of packets, and acknowledges the packets sent.

answer

False

question

A digital signal is represented by a continuous waveform that passes through a communications medium; analog signals are used for voice communication.

answer

False

question

A analog signal is a discrete, binary waveform, rather than a continuous waveform.

answer

False

question

A modem is a device that translates digital signals from a computer into analog form so that they can be transmitted over analog telephone lines.

answer

True

question

A local-area network (LAN) is designed to connect personal computers and other digital devices within a half-mile or 500-metre radius.

answer

True

question

The most common LAN operating systems are Windows, Linux, and Novell.

answer

True

question

Ethernet is the dominant LAN standard at the physical network level, specifying the physical medium to carry signals between computers; access control rules; and a standardized set of bits used to carry data over the system.

answer

True

question

A peer-to-peer network treats all processors equally and is used primarily in small networks with 10 or fewer users.

answer

True

question

Sometimes LANs are described in terms of the way their components are connected together, or their topology.

answer

True

question

In a bus topology, one station transmits signals, which travel in both directions along a single transmission segment.

answer

True

question

Wide-area networks (WAN) is a network that spans a metropolitan area, usually a city and its major suburbs.

answer

False

question

Metropolitan-area network (MAN)span broad geographical distances-entire regions, states, continents, or the entire globe.

answer

False

question

Twisted wire consists of strands of copper wire twisted in pairs and is an older type of transmission medium.

answer

True

question

Microwave systems, both terrestrial and celestial, transmit high-frequency radio signals through the atmosphere and are widely used for high-volume, long-distance, point-to-point communication.

answer

True

question

The range of frequencies that can be accommodated on a particular telecommunications channel is called its bandwidth.

answer

True

question

An Internet service provider (ISP) is a commercial organization with a temporary connection to the Internet that sells permanent connections to retail subscribers.

answer

False

question

Digital subscriber line (DSL) provided by cable television vendors use digital cable coaxial lines to deliver high-speed Internet access to homes and businesses.

answer

False

question

The domain name is the English-like name that corresponds to the unique 32-bit numeric IP address for each computer connected to the Internet.

answer

False

question

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

answer

True

question

An NOS must reside on a dedicated server computer in order to manage a network.

answer

False

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.

answer

False

question

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.

answer

True

question

Central large mainframe computing has largely replaced client/server computing.

answer

False

question

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

answer

False

question

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

answer

True

question

Two computers using TCP/IP can communicate even if they are based on different hardware and software platforms.

answer

True

question

In a ring topology, one station transmits signals, which travel in both directions along a single transmission segment.

answer

False

question

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

answer

True

question

Fibre-optic cable is more expensive and harder to install than wire media.

answer

True

question

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

answer

False

question

The success of the Internet is in part due to its design as an infinitely scalable network capable of handling millions of users.

answer

False

question

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

answer

False

question

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.

answer

False

question

Wi-Fi enables users to freely roam from hotspot to hotspot even if the hotspot is using different Wi-Fi network services.

answer

False

question

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

answer

False

question

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

answer

False

question

In a few years, more than 80 percent of the Internet users in North America will use smartphones and mobile netbooks to access the Internet.

answer

False

question

The Aviation layer is responsible for providing the Application layer with communication and packet services.

answer

False

question

The Transport Interface layer is responsible for placing packets on and receiving them from the network medium, which could be any networking technology.

answer

False

question

Every computer on the Internet is assigned the same Internet Protocol (IP) address, which currently is a 32-bit number represented by four strings of numbers ranging from 0 to 255 separated by periods.

answer

False

question

Internet2 and Next-Generation Internet (NGI) are consortia representing 200 universities, private businesses, and government agencies in the United States working on a new, robust, high-bandwidth version of the Internet.

answer

True

question

Proponents of net neutrality also argue that a neutral Internet encourages everyone to innovate without permission from the phone and cable companies or other authorities, and this level playing field has spawned countless new businesses.

answer

True

question

Network owners believe regulation to enforce net neutrality will impede competitiveness by stifling innovation, discouraging capital expenditures for new networks, and curbing their networks' ability to cope with the exploding demand for Internet and wireless traffic.

answer

True

question

Canadian Internet service lags behind that of many other nations in overall speed, cost, and quality of service, adding credibility to this argument.

answer

True

question

Newsgroups are worldwide discussion groups posted on Internet electronic bulletin boards on which people share information and ideas on a defined topic, such as radiology or rock bands.

answer

True

question

Search engines attempt to solve the problem of finding useful information on the Web nearly instantly and, arguably, they are the "killer app" of the Internet era.

answer

True

question

A device that acts as a connection point between computers and can filter and forward data to a specified destination is called a A) hub. B) switch. C) router. D) NIC.

answer

B) switch

question

The Internet is based on which three key technologies? A) TCP/IP, HTML, and HTTP B) TCP/IP, HTTP, and packet switching C) Client/server computing, packet switching, and the development of communications standards for linking networks and computers D) Client/server computing, packet switching, and HTTP

answer

C) client/server computing, packet switching, and the development of communications standards for linking networks and computers

question

The method of slicing digital messages into parcels, transmitting them along different communication paths, and reassembling them at their destinations is called A) multiplexing. B) packet switching. C) packet routing. D) ATM.

answer

B) packet switching

question

The telephone system is an example of a ________ network. A) peer-to-peer B) wireless C) packet-switched D) circuit-switched

answer

D) circuit-switched

question

Which of the following is NOT a characteristic of packet switching? A) Packets travel independently of each other. B) Packets are routed through many different paths. C) Packet switching requires point-to-point circuits. D) Packets include data for checking transmission errors.

answer

C) packet switching requires point-to-point circuits

question

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.

answer

A) disassembling and reassembling of packets during transmission

question

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.

answer

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

question

The four layers of the TCP/IP reference model are A) physical layer, application layer, transport layer, and the network interface layer. B) physical layer, application layer, Internet layer, and the network interface layer. C) application layer, transport layer, Internet layer, and the network interface layer. D) application layer, hardware layer, Internet layer, and the network interface layer.

answer

C) application layer, transport layer, Internet layer, and the network interface layer

question

Which signal types are represented by a continuous waveform? A) laser B) optical C) digital D) analog

answer

A) laser

question

To use an analog telephone system for sending digital data, you must use: A) a modem. B) a router. C) DSL. D) twisted wire.

answer

A) a modem

question

Which type of network is used to connect digital devices within a half-mile or 500-metre radius? A) microwave B) LAN C) WAN D) MAN

answer

B) LAN

question

Which type of network treats all processors equally, and allows peripheral devices to be shared without going to a separate server? A) peer-to-peer B) wireless C) LAN D) ring

answer

A) peer-to-peer

question

Which type of network would be most appropriate for a business that comprised three employees and a manager located in the same office space, whose primary need is to share documents? A) wireless network in infrastructure mode B) domain-based LAN C) peer-to-peer network D) campus area network

answer

C) peer-to-peer network

question

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.

answer

B) signals are broadcast in both directions to the entire network

question

All network components connect to a single hub in a ________ network. A) star B) bus C) domain D) peer-to-peer

answer

A) star

question

The most common ethernet topology is A) bus. B) star. C) ring. D) mesh.

answer

A) bus

question

A network that spans a city, and sometimes its major suburbs as well, is called a A) CAN. B) MAN. C) WAN. D) LAN.

answer

B) MAN

question

A network that covers entire geographical regions is most commonly referred to as a(n): A) local area network. B) intranet. C) peer-to-peer network. D) wide area network.

answer

D) wide area network

question

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

answer

A) cell phones

question

Bandwidth is the A) number of frequencies that can be broadcast through a medium. B) number of cycles per second that can be sent through a medium. C) difference between the highest and lowest frequencies that can be accommodated on a single channel. D) total number of bytes that can be sent through a medium per second.

answer

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

question

The total amount of digital information that can be transmitted through any telecommunications medium is measured in A) bps. B) Hertz. C) baud. D) gigaflops.

answer

A) bps

question

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.

answer

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

question

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 telephone companies. D) have up to twenty-four 64-Kbps channels.

answer

C) are very-high-speed data lines typically leased from long-distance telephone companies

question

Which protocol is the Internet based on? A) TCP/IP B) FTP C) packet-switching D) HTTP

answer

A) TCP/IP

question

What service converts IP addresses into more recognizable alphanumeric names? A) HTML B) DNS C) IP D) HTTP

answer

B) DNS

question

The child domain of the root is the A) top-level domain. B) second-level domain. C) host name. D) domain extension.

answer

A) top-level domain

question

In the domain name "http://myspace.blogging.com," what are the root, top-level, second-level, and third-level domains, respectively? A) "http://", myspace, blogging, com B) "http://", com, blogging, myspace C) ".", com, blogging, myspace D) ".", myspace, blogging, com

answer

C) ".", com, blogging, mypsace

question

Which organization helps define the overall structure of the Internet? A) none (no one "owns" the Internet) B) W3C C) ICANN D) IAB

answer

D) IAB

question

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.

answer

B) create more IP addresses

question

Which of the following services enables logging on to one computer system and working on another? A) FTP B) LISTSERV C) Telnet D) World Wide Web

answer

C) Telnet

question

Instant messaging is a type of ________ service. A) chat B) cellular C) Web D) wireless

answer

A) chat

question

The need in some cases for employees to have access to sexually explicit material on the Internet, such as medical researchers, suggests that companies A) cannot restrict Internet use. B) need specialized software to determine which types of material are acceptable. C) may need to maintain a database of acceptable Web sites. D) need to base their Internet use policies on the needs of the organization and culture.

answer

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

question

________ integrate(s) disparate channels for voice communications, data communications, instant messaging, e-mail, and electronic conferencing into a single experience. A) Wireless networks B) Intranets C) Virtual private networks D) Unified communications

answer

D) unified communications

question

A VPN A) is an encrypted private network configured within a public network. 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

answer

A) is an encrypted private network configured within a public network

question

Web browser software requests Web pages from the Internet using which protocol? A) URL B) HTTP C) DNS D) HTML

answer

B) HTTP

question

Together, a protocol prefix, a domain name, a directory path, and a document name, are called a(n) A) uniform resource locator. B) unified resource locator. C) third level domain. D) root domain.

answer

A) uniform resource locator

question

The open-source Web server that controls 54 percent of the market is A) Microsoft IIS. B) ASP.net. C) Apache HTTP server. D) Netscape.

answer

C) Apache HTTP server

question

What technology allows people to have content pulled from Web sites and fed automatically to their computers? A) FTP B) RSS C) HTTP D) Bluetooth

answer

B) RSS

question

To keep internal data secure, a company employing an extranet must be sure to put a ________ in place. A) router B) server C) firewall D) switch

answer

C) firewall

question

A network that connects authorized customers, suppliers, and other business partners to portions of a firm's internal network is called a(n) A) intranet. B) extranet. C) enterprise network. D) virtual private network.

answer

B) extranet

question

Which generation of network are wireless cellular phone systems entering? A) 2.5G B) 3G C) 3.5G D) 4G

answer

B) 3G

question

CDMA 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.

answer

C) transmits over several frequencies

question

The most appropriate wireless networking standard for creating PANs is A) I-mode. B) IEEE 802.11b. C) WiFi. D) Bluetooth.

answer

D) Bluetooth

question

Bluetooth can be used to link up to ________ devices within a 10-metre area using low-power, radio-based communication. A) four B) six C) eight D) ten

answer

C) eight

question

The Wi-Fi 802.11a standard can transmit up to A) 54 Mbps in the 5-GHz frequency range. B) 11 Mbps in the 2.4-GHz frequency range. C) 54 Mbps in the 2.4-GHz frequency range. D) 722 Kbps in the 2.4-GHz frequency range.

answer

A) 54 Mbps in the 5-GHz frequency range

question

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) touch points. B) hotspots. C) hot points. D) wireless hubs.

answer

B) hotspots

question

The IEEE standard for the WiMax is A) IEEE 802.15. B) IEEE 802.11. C) IEEE 802.16. D) IEEE 802.20.

answer

C) IEEE 802.16

question

The WiMax standard can transmit up to a distance of approximately A) 30 metres. B) 500 metres. C) 30 miles. D) 5 miles.

answer

C) 30 miles

question

Passive RFID tags A) have their own power source. B) have a range of several feet. C) enable data to be rewritten and modified. D) are used in automated toll-collection systems.

answer

B) have a range of several feet

question

________ are very simple devices that connect network components, sending a packet of data to all other connected devices. A) Hubs B) Switches C) Routers D) NOS

answer

A) Hubs

question

A ________ has more intelligence than a hub and can filter and forward data to a specified destination on the network. A) hub B) switch C) router D) NOS

answer

B) switch

question

A ________ is a special communications processor used to route packets of data through different networks, ensuring that the data sent gets to the correct address. A) hub B) switch C) router D) NOS

answer

C) router

question

109) The ________ routes and manages communications on the network and coordinates network resources. A) hub B) switch C) router D) NOS

answer

D) NOS

question

John is evaluating the new system of computing that has just been installed in his firm. The new ________ computing has extended computing to various departments, workgroups, factory floors, and other parts of the business that could not be served by the centralized architecture that was replaced with this new system. A) client/server B) mainframe C) PDA D) customer/client

answer

A) client/server

question

The ________ enables client application programs to access the other layers and defines the protocols that applications use to exchange data. One of these application protocols is the Hypertext Transfer Protocol (HTTP), which is used to transfer Web page files. A) application layer B) transport layer C) internet layer D) network interface layer

answer

A) application layer

question

Bob is trying to decide which type of physical transmission media to install that his LAN needs. Bob is in an older building in the downtown core of the city. He needs speeds up to 1 Gbps and the network needs to have a maximum run of 60 metres. Which type of transmission media is Bob going to install? A) microwave systems B) fibre optic cable C) twisted wire D) coaxial cable

answer

C) twisted wire

question

Larry is trying to decide which type of physical transmission media to install for his LAN needs. Larry's firm is in a very large building. He needs speeds up to 1 Gbps and the network needs to have a maximum run of 140 metres. Which type of transmission media is Larry going to install? A) microwave systems B) fibre optic cable C) twisted wire D) coaxial cable

answer

D) coaxial cable

question

Sally is the head of CTV News in Canada. CTV is having trouble with their network because they have too much data to transfer for the current physical transmission media that is in place. Sally knows that much of the data they transfer is video and lots of it. Which type of media should Sally consider as they perform this upgrade? A) microwave systems B) fibre optic cable C) twisted wire D) coaxial cable

answer

B) fibre optic cable

question

Gordon is wondering what is the best physical transmission media to use for high-volume, long-distance, point-to-point communication that his firm needs. Which media should Gordon consider for his situation? A) microwave systems B) fibre optic cable C) twisted wire D) coaxial cable

answer

A) microwave systems

question

Internet data traffic is carried over transcontinental high-speed backbone networks that generally operate today in the range of 45 Mbps to 2.5 Gbps. These trunk lines are typically owned by ________. A) network service providers B) regional telephone and cable companies C) ISP D) coaxial cable

answer

A) network service providers

question

Local connection lines are owned by regional ________ that connect retail users in homes and businesses to the Internet. A) network service providers B) telephone and cable television companies C) ISP D) coaxial cable

answer

B) telephone and cable television companies

question

The regional networks lease access to ________. A) network service providers B) telephone and cable television companies C) ISPs, private companies, and government institutions. D) coaxial cable

answer

C) ISPs, private companies, and government institutions

question

Network neutrality is the idea that Internet service providers must allow customers ________. A) unequal access to content and applications, regardless of the source or nature of the content B) equal access to content and applications, regardless of the source or nature of the content C) equal access to content and applications, depending on the source or nature of the content D) unequal access to content and applications, depending on the source or nature of the content

answer

B) equal access to content and applications, regardless of the source or nature of the content

question

Canadian companies have the ________. A) legal right to monitor what employees are doing with non-company equipment during business hours B) legal right to monitor what employees are doing with company equipment during business hours C) legal right to monitor what customer are doing with non-company equipment during business hours D) ethical right to monitor what employees are doing with company equipment during business hours.

answer

B) legal right to monitor what employees are doing with company equipment during business hours

question

Based on your reading of the examples in the chapter, what would be the best use of RFID for a business? A) transactions B) supply chain management C) lowering network costs D) enabling client communication

answer

B) supply chain management

question

In a few years, more than ________ the Internet users in North America will use smartphones and mobile netbooks to access the Internet. A) one-third B) one-half C) a quarter D) three-quarters

answer

B) one-half

question

The ________ layer is responsible for providing the Application layer with communication and packet services. A) network interface B) transport C) Internet D) application

answer

B) transport

question

The ________layer is responsible for placing packets on and receiving them from the network medium, which could be any networking technology. A) transport B) network interface C) Internet D) application

answer

B) network interface

question

Every computer on the Internet is assigned a unique ________ address, which currently is a 32-bit number represented by four strings of numbers ranging from 0 to 255 separated by periods. A) transport protocol (TP) B) Internet protocol (IP) C) control protocol (CP) D) layer protocol (LP)

answer

B) internet protocol (IP)

question

______________ are consortia representing 200 universities, private businesses, and government agencies in the United States working on a new, robust, high-bandwidth version of the Internet. A) Internet2 and Next-Generation Internet (NGI) B) Internet3 and Next-Generation Internet (NGI) C) Internet2 and Current-Generation Internet (CGI) D) Internet3 and Current-Generation Internet (CGI)

answer

A) Internet2 and Next-Generation Internet (NGI)

question

Proponents of ________ also argue that a neutral Internet encourages everyone to innovate without permission from the phone and cable companies or other authorities, and this level playing field has spawned countless new businesses. A) net neutrality B) net duality C) net reality D) net fairness

answer

A) net neutrality

question

________ believe regulation to enforce net neutrality will impede competitiveness by stifling innovation, discouraging capital expenditures for new networks, and curbing their networks' ability to cope with the exploding demand for Internet and wireless traffic. A) Computer owners B) Modem owners C) Web site owners D) Network owners

answer

D) Network owners

question

Canadian Internet service ________that of many other nations in overall speed, cost, and quality of service, adding credibility to this argument. A) surges ahead B) equals C) surpasses D) lags behind

answer

D) lags behind

question

________ are worldwide discussion groups posted on Internet electronic bulletin boards on which people share information and ideas on a defined topic, such as radiology or rock bands. A) User groups B) Internet groups C) Web groups D) Newsgroups

answer

D) Newsgroups

question

________ attempt to solve the problem of finding useful information on the Web nearly instantly and, arguably, they are the "killer app" of the Internet era. A) Web engines B) Search engines C) Internet engines D) Optimization engines

answer

B) Search engines

question

In search engine marketing, when users enter a search term at Google, Bing, Yahoo!, or any of the other sites serviced by these search engines, they receive two types of listings: ________ search results. A) hyper links and unsponsored B) sponsored links and unsponsored C) sponsored links and hyper D) positive links and negative

answer

B) sponsored links unsponsored

question

Search engine ________ is the process of improving the quality and volume of Web traffic to a Web site by employing a series of techniques that help a Web site achieve a higher ranking with the major search engines when certain keywords and phrases are put in the search field. A) concentration B) optimization C) internetation D) extinction

answer

B) optimization

question

________ use intelligent agent software for searching the Internet for shopping information. A) Shipping bots B) Shopping bots C) Smart phones D) Smart agents

answer

B) shopping bots

CHAPTER 7 – College

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