Deck 4: Telecommunications and Networking

Question 1

Broadband refers to a network with transmission capacity of less than 4 megabits per minute.

Answer 1

False

Question 2

The U.S. public telephone system was designed as an analog network to carry voice signals.

Answer 2

True

Question 3

Systems that use digital subscriber lines (DSL)do not require modems.

Answer 3

False

Question 4

Twisted-pair wire is the least-used form of communications wiring.

Question 5

Internet kiosks are computer terminals located in public places like libraries and airports.

Question 6

A business does not need network connectivity in order to maintain a strategic advantage.

Question 7

Network interface cards are special adapters that link an individual device to the communications medium on a local area network.

Question 8

Digital signals are continuous waves that transmit information by altering the characteristics of the waves.

Question 9

Extranets offer limited accessibility to the intranets of participating companies.

Question 10

Digital signals have two parameters: frequency and amplitude.

Question 11

Wide-area networks have a large capacity, and they typically use a single communications channel.

Question 12

An intranet is a network that uses Internet technologies and is designed to serve the information needs of a single organization.

Question 13

Cable media use wires or cables to transmit data and information.

Question 14

The network interface card typically houses the LAN's network operating system.

Question 15

The Internet is a global network of computer networks.

Question 16

An extranet is a network that uses Internet technologies and is designed to serve the information needs of a single organization.

Question 17

A local area network connects two or more communicating devices in a limited geographical area.

Question 18

An Internet service provider is a company that offers Internet connections for a fee.

Question 19

Intranets support discovery, communication, and collaboration inside an organization.

Question 20

Cladding is the coating that surrounds fiber-optic cables and prevents light from leaking out of the fiber.

Question 21

Uniform resource locators (URLs)point to the address of a specific resource or site on the Web.

Question 22

E-learning is conducted only in virtual classrooms, where all coursework is completed online.

Question 23

A major problem of the discovery applications of networks is the huge amount of information available.

Question 24

Electronic mail is the largest-volume application running over the Internet.

Question 25

Employees who telecommute have generally found that the experience enhances their careers.

Question 26

A(n)_____ connects two or more devices in a limited geographical area.

A)Local area network
B)Wide-area network
C)Personal area network
D)Enterprise network
E)Value added network

Question 27

The quality of automatic translation of Web pages is usually just as good as human translation.

Question 28

Virtual universities are online universities from which students take classes from home or at an off-site location, via the Internet.

Question 29

The World Wide Web is a system with universally accepted standards for storing, retrieving, formatting, and displaying information via a client/server architecture.

Question 30

A domain name is the official name assigned to an Internet site, consisting of multiple parts, separated by dots, which are translated from right to left in locating the site.

Question 31

The hypertext transport protocol (HTTP)is the communications standard used to transfer pages across the World Wide Web portion of the Internet.

Question 32

With Voice-over-IP, every call opens up a dedicated circuit for the duration of the call.

Question 33

Commercial portals are intended for broad audiences and offer fairly routine content.

Question 34

The rightmost part of an Internet name is the top-level specification, or the zone.

Question 35

Uniform resource locators (URLs)are software applications through which users access the Web.

Question 36

Metasearch engines search several engines at once and integrate the findings of the various search engines.

Question 37

One exabyte is the same as 1 million megabytes

Question 38

Industry-wide portals are intended for broad audiences and offer fairly routine content.

Question 39

_____ refers to the range of frequencies available in any communications channel.

A)Protocol
B)Broadband
C)Capacity
D)Narrowband
E)Bandwidth

Question 40

Which of the following is not a component of a local area network?

A)File server
B)Client computers
C)Bridge
D)Network interface cards
E)All of the above

Question 41

The cable medium with the highest bandwidth is ___________.

A)Twisted-pair wire
B)Coaxial cable
C)Fiber-optic cable
D)Cellular radio
E)Copper cable

Question 42

In order to ensure that computers developed by different manufacturers can communicate, _____ have been developed.

A)Protocols
B)Client/server architectures
C)WANs
D)Application software packages
E)Developmental architectures

Question 43

Which of the following is not a communications channel?

A)Fiber-optic cable
B)Satellite transmission
C)Twisted-pair wire
D)Integrated circuits
E)Cellular radio

Question 44

The part of a network that handles the major traffic is the ________.

A)Front end
B)Network interface
C)Multiplexer
D)Backbone
E)Front end processor

Question 45

A _____ sends messages through several connected LANs or to a wide-area network.

A)Router
B)Network interface card
C)Bridge
D)Gateway
E)File server

Question 46

Which of the following statements concerning packet switching is not true?

A)Packets contain a sequence number.
B)Packets are routed through different paths.
C)Packets require dedicated circuits.
D)Packets use TCP/IP to carry their data.
E)Packets contain destination addressing.

Question 47

_____ are hardware devices that support data transmission and reception across a telecommunications system.

A)Integrated services digital networks
B)Digital subscriber lines
C)Communications channels
D)Integrated circuits
E)Communications processors

Question 48

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 the control of communications in a network.
C)A communications service for the connection of devices in a local area network.
D)The main communications channel in a wide-area network.
E)Synonymous with network interface card.

Question 49

Which data transmission technology requires fiber-optic cable, can transmit up to 2.5 gigabits per second, and is more expensive than DSL?

A)Digital subscriber line
B)Asynchronous transfer mode
C)Synchronous optical network
D)T-carrier system
E)ISDN

Question 50

In TCP/IP, IP is responsible for:

A)Disassembling and reassembling of packets during transmission.
B)Establishing the Internet connection between two computers.
C)Moving packets over the network.
D)Sequencing the transfer of packets across the network.
E)Error checking.

Question 51

A _____ allows a device to physically connect to a local area network's communications medium.

A)File server
B)Network interface card
C)Network operating system
D)Communications channel
E)Gateway

Question 52

Gal runs a music store. He has a desktop computer in the back room that acts as a server. He has a point-of-sale terminal that connects to the desktop. He also has a notebook (using in-store wireless access to the Internet)that can be carried around the store to look up current items in stock, or to search for items from one of his suppliers for special orders. Which of the following statements is true?

A)Gal must have a Web site in order to use his notebook.
B)The notebook is on the same network as the point-of-sale terminal.
C)Gal must have an ISP in order to access the Internet from his notebook.
D)The notebook will work only when the desktop computer is turned on.
E)All of the statements are true.

Question 53

The function of _____ is to convert digital signals to analog signals and vice-versa.

A)Modems
B)Multiplexers
C)Front-end processors
D)Servers
E)Clients

Question 54

_____ signals convey information in wave form, whereas _____ signals convey information in binary form.

A)Analog, packet
B)Analog, digital
C)Digital, packet
D)Digital, analog
E)Packet, analog

Question 55

Gal runs a music store. He has a desktop computer in the back room that acts as a server. He has a point-of-sale terminal that connects to the desktop. He also has a notebook (using in-store wireless access to the Internet)that can be carried around the store to look up current items in stock, or to search for items from one of his suppliers for special orders. Which type of media does he likely use to connect the point-of-sale terminal to the desktop?

A)Twisted-pair wire
B)Coaxial cable
C)Fiber-optic cable
D)Cellular radio
E)Copper cable

Question 56

Which of the following is not a characteristic of twisted-pair wire?

A)Inexpensive
B)Easy to work with
C)Subject to interference from other electrical sources
D)Secure transmissions

Question 57

Which of the following enables users to send data across sometimes unreliable networks?

A)Ethernet
B)TCP/IP
C)Protocols
D)Digital subscriber lines
E)Integrated services digital network

Question 58

Gal runs a music store. He has a desktop computer in the back room that acts as a server. He has a point-of-sale terminal that connects to the desktop. He also has a notebook (using in-store wireless access to the Internet)that can be carried around the store to look up current items in stock, or to search for items from one of his suppliers for special orders. Which type of network does Gal have?

A)Client-server
B)Mainframe-based
C)LAN
D)WAN
E)Peer-to-peer

Question 59

All of the following statements concerning wide-area networks are true except:

A)They are provided by individual companies.
B)They have large capacity.
C)They cover large geographical areas.
D)They combine multiple communications channels.
E)The Internet is an example of a wide-area network.

Question 60

Data are sent through a fiber-optic cable by a(n)_______.

A)Optical switch
B)Electromagnetic switch
C)Laser
D)Multiplexer
E)Optical modem

Question 61

Gal runs a music store. His supplier has recently set up a web-based system for Gal to use to check the supplier's inventory levels and place orders. This is called a _______________

A)Global network
B)Extranet
C)Internet
D)Intranet
E)World Wide Web.

Question 62

BitTorrent uses a process called _____, which eliminates file-sharing bottlenecks by having everyone share little pieces of a file at the same time.

A)Leeching
B)Collaboration
C)Packet switching
D)Torrents
E)Swarming

Question 63

Gal runs a music store. He has a desktop computer in the back room that acts as a server. He has a point-of-sale terminal that connects to the desktop. He also has a notebook (using in-store wireless access to the Internet)that can be carried around the store to look up current items in stock, or to search for items from one of his suppliers for special orders. Which device(s)require network interface cards?

A)desktop computer
B)Point-of-sale terminal
C)notebook computer
D)All of these devices require network interface cards.

Question 64

Which of the following statements about publication of material in foreign languages is not correct?

A)It is a competitive necessity.
B)It must be accurate.
C)It is expensive.
D)Content must be localized to the needs of people in local markets.
E)It is not yet a major consideration for most companies.

Question 65

Gal runs a music store. The Web site for the store is www.GalsTunes.net. Which of the following is false?

A)The "GalsTunes" is the name of the organization.
B)The "net" is a top-level domain name.
C)That is the URL for the web site for the store.
D)This is the name of a particular server in Gal's store.

Question 66

The _____ is a global wide-area network that connects approximately 1 million organizational computer networks.

A)Ethernet
B)Extranet
C)Internet
D)Intranet
E)World Wide Web

Question 67

Gal runs a music store. He tells you that he gets his Internet access from his TV company. Which of the following is true?

A)Gal has FTTH.
B)Gal has satellite service.
C)Gal has DSL service.
D)Gal has a cable modem.

Question 68

Each site on the Internet gets an assigned address, which is a(n)_____.

A)TCP address
B)IP address
C)URL address
D)ISO/OSI identifier
E)World Wide Web address

Question 69

Consider this domain name, www.business.gsu.edu. The "gsu" is the __________.

A)Top-level domain
B)Name of the organization
C)URL
D)Name of the specific computer
E)Address of the Webmaster

Question 70

Which network application(s)enable(s)users to access information located in databases all over the world?

A)Discovery
B)Communications
C)Collaboration
D)Web services
E)None of the above

Question 71

_____ portals offer content for diverse communities and are intended for broad audiences.

A)Industrywide
B)Personal
C)Affinity
D)Corporate
E)Commercial

Question 72

Refer to IT's About Business 4.1 - Internet Access in Cuba: Which of the following is an incorrect statement?

A)The Cuban government controls all online communication via the Internet.
B)Internet access is free to everyone.
C)Cuban citizens circumvent government restrictions by satellite smartphones.
D)Cuban citizens can only access expanded Internet services in cyber cafes.

Question 73

A type of processing that links two or more computers in an arrangement in which some machines provide computing services for user computers is best described as _______.

A)Open systems
B)Client/server
C)Peer-to-peer
D)Centralized
E)Mainframe-centric

Question 74

_____ portals support communities such as hobby groups or political parties.

A)Industry wide
B)Personal
C)Affinity
D)Corporate
E)Commercial

Question 75

Consider this domain name, www.business.gsu.edu. The "edu" is the _______.

A)Top-level domain
B)URL
C)Web site locator
D)Name of the computer
E)Address of the Webmaster

Question 76

Internet service providers connect to one another through _____.

A)Internet connection points
B)Common carrier connection points
C)Network access points
D)Network connection points
E)An extranet

Question 77

Consider this domain name, www.business.gsu.edu. The "business" is the ________.

A)Top-level domain
B)Name of the organization
C)URL
D)Name of the specific server
E)Address of the Webmaster

Question 78

_____ are Internet access points that are located in public places, such as libraries and airports.

A)Clients
B)Servers
C)Internet access computers
D)Network computer
E)Internet kiosks

Question 79

A(n)_____ is a network designed to serve the internal informational needs of a single organization.

A)Global network
B)Extranet
C)Internet
D)Intranet
E)World Wide Web

Question 80

A(n)_____ connects parts of the intranets of different organizations and allows secure communications among business partners.

A)Global network
B)Extranet
C)Internet
D)Intranet
E)World Wide Web