6 Key
1.
(p. 221)
A change in technology often induces social, political, and economic system changes long
before a critical mass of users is reached.
2.
(p. 221–
222)
The telecommunications industry has changed from a deregulated market to government–
regulated monopolies.
3.
(p. 222)
Middleware is an essential component of any IT infrastructure because it allows disparate
systems to be isolated.
4.
(p. 225)
Business-to-business electronic commerce websites can be used by businesses to establish
strategic relationships with their customers and suppliers.
5.
(p. 225)
The Internet has a central computer system that is the most powerful in the world.
6.
(p. 226)
The Internet provides electronic discussion forums and bulletin board systems that are formed
and managed by special-interest newsgroups.
7.
(p. 228)
Booking a reservation over the Internet costs an airline about 50 percent less than booking the
same reservation over the telephone.
8.
(p. 229)
An intranet is a network inside an organization that uses Internet technologies to provide an
Internet-like environment within the enterprise.
9.
(p. 230)
Intranets seldom have much impact on communications and collaboration within an
enterprise.
10.
(p. 231)
Software that is installed on intranet Web servers can be accessed by employees within the
company or by external business partners who are using Web browsers, if access is allowed
by the company.
11.
(p. 231)
If access to data is not restricted with passwords and other security mechanisms, the integrity
of the data can be easily compromised.
12.
(p. 232)
An extranet is a network inside a company that uses Internet technologies to provide a private
Internet-like network environment to the firm.
13.
(p. 232)
Web browser technology makes customer and supplier access of intranet resources a lot
easier and faster than with previous business methods.
14.
(p. 242)
A client/server network of several interconnected local area networks can replace a large
mainframe-based network with many end user terminals.
15.
(p. 242)
The network-centric concept views the PC as the central computing resource of any
computing environment.
16.
(p. 243)
In the central server architecture of P2P networking, the P2P software connects your PC to a
central server with the directory of all users of the network.
17.
(p. 243)
In the pure peer-to-peer architecture of P2P networking, the P2P software connects your PC
to a central server with the directory of all users of the network.
18.
(p. 244)
The Internet, as originally conceived in the late 1960s, was a pure peer-to–peer system.8
19.
(p. 244)
The unique achievement of Napster was the empowerment of the peers, in association with a
central index, to quickly and efficiently locate available content.
20.
(p. 245)
Output from analog devices must be converted into digital form in order to input it into a
computer.
21.
(p. 246)
Today, ordinary telephone wire is the least used medium for telecommunications.
22.
(p. 246)
Newly developed optical routers will be able to send optical signals up to 2,500 miles without
regeneration.
23.
(p. 247)
Communications satellites can use microwave radio as their telecommunications medium.
24.
(p. 248)
PCS phone systems cost substantially more to operate and use than cellular systems, but
have lower power consumption requirements.
25.
(p. 299)
Wi-Fi is faster and less expensive than Standard Ethernet and other common wire-based LAN
technologies.
26.
(p. 249)
A Bluetooth chip is designed to replace cables; it takes the information normally carried by a
cable and transmits it to a receiver Bluetooth chip.
27.
(p. 252)
In frequency division multiplexing (FDM), a multiplexer effectively divides one high-speed
channel into multiple high-speed channels.
28.
(p. 253)
Multiplexers work to increase the number of transmissions possible, while also increasing the
number of physical data channels.
29.
(p. 253)
Telecommunications and network management software can reside in communications
processors, such as multiplexers and routers.
30.
(p. 253)
Mainframe-based wide area networks frequently use telecommunications monitors or
teleprocessing monitors.
31.
(p. 255)
The Open System Interconnection (OSI) model was officially adapted as an international
standard by the International Organization of Standards (ISO).
32.
(p. 257)
The Internet uses a system of telecommunications protocols that have become so widely used
that they are now accepted as a network architecture.
33.
(p. 257)
An IP address is expressed as four decimal numbers separated by periods, such as
127.154.95.6.
34.
(p. 257)
IP addressing can identify a particular PC connected to the Internet, but not the network to
which it is attached.
35.
(p. 258)
Skype software allows telephone conversations through a PC and over the Internet instead of
a separate phone connection.
36.
(p. 257)
Each IP address is divided into three address classes, which are A, B, and C. Class C
addresses are normally owned by large Internet service providers or major corporations.
37.
(p. 257)
New technologies are extending IP addresses beyond computers to TVs, toasters, and
coffeemakers.
38.
(p. 258)
Developed to work Internet2, IPv6 increases the IP address size from 32 bits to 256 bits to
support more levels of the address hierarchy.
39.
(p. 258)
IPv6 supports over 300 trillion trillion trillion addresses.
40.
(p. 258)
Voice over IP is a technology that allows a remote worker to function as if he or she were
directly connected to a regular telephone network, even while at home or in a remote office.
41.
(p. 258–
259)
Skype users can call to any non-computer-based landline or mobile telephone in the world for
just pennies a minute.
42.
(p. 260)
“Bandwidth” is typically measured in characters per second (CPS).
43.
(p. 260)
Narrow-band channels typically use microwave, fiber optics, or satellite transmission.
44.
(p. 260–
261)
Frame relay technology is slower than X.25 and not as well suited to handle the heavy
communications traffic of interconnected local area networks.
45.
(p. 261)
Although we tend to think of the FCC as the oversight body for radio and television, it is
equally involved in all aspects of data and voice communications.
46.
(p. 260)
Regular telephone service relies on Packet Switching, while the Internet relies on Circuit
Switching.
47.
(p. 260)
Packet Switching involves dividing a message into multiple packets which are transmitted over
a network to the receiver.
48.
(p. 225)
The Internet is owned by the government of the United States.
49.
(p. 218)
Telecommunications and network technologies are internetworking and revolutionizing
_______________.
50.
(p. 218)
Which of the following statements best defines a network?
51.
(p. 218)
A network with 100 nodes has 9,900 possible connections. A network with 1,000 nodes has
_______________ possible connections.
52.
(p. 220–
221)
Metcalfe’s law states that:
53.
(p. 221)
A change in technology induces social, political, and economic system changes
_______________.
54.
(p. 221–
222)
The telecommunications industry has changed _______________.
55.
(p. 222)
Open systems are a recent telecommunications trend. Open systems:
56.
(p. 222–
223)
Programming that serves to “glue together” or mediate between two separate, and usually
already existing, programs is known as _______________.
57.
(p. 223)
Local and global telecommunications networks are rapidly converting to digital transmission
technologies. Digital technology provides all of the following benefits over analog technology
except:
58.
(p. 223)
Telecommunications networks now play vital and pervasive roles in Web-enabled
_______________.
59.
(p. 223)
Which of the following statements regarding Internet2 is true?
60.
(p. 224)
Most of the institutions and commercial partners on the Internet2 network are connected via
_______________, a network backbone that will soon support throughput of 10 Gbps.
61.
(p. 225)
Traveling salespeople and those at regional sales offices can use the Internet, extranets, and
other networks to transmit customer orders from their laptop or desktop PCs, thus breaking
_______________ barriers.
62.
(p. 224)
Telecommunications-based business applications can help a company overcome all of the
following barriers to business success except:
63.
(p. 225)
All of the following statements about the Internet revolution are true except:
64.
(p. 225)
Which of the following statements regarding Internet Service Providers is correct?
65.
(p. 226)
ISPs are connected to one another through network _______________.
66.
(p. 228)
Which of the following is a key business use of the Internet?
67.
(p. 228)
Applications that use the Internet and Internet-based technologies are typically less expensive
to _______________ than traditional systems.
68.
(p. 229)
Most companies are building e-business and e-commerce websites to achieve all of the
following goals except:
69.
(p. 229)
An _______________ is a network inside an organization that uses Internet technologies to
provide an Internet-like environment within the enterprise.
70.
(p. 229)
An _______________ is a network link that uses Internet technologies to interconnect the
intranet of a business with the intranets of its customers, suppliers, or other business
partners.