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Management Information Systems > Exam 2- Chapter 6 > Flashcards

Exam 2- Chapter 6 Flashcards

1
Q

a system that connects computers and other devices (ex: printers) through communications media so that data and information can be transmitted among them

A

computer network

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2
Q

Voice and data communication are becoming what two things?

A
  1. Faster (bandwidth is increasing)
  2. Cheaper
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3
Q

the transmission capacity of a network; stated in bits per second

A

bandwidth

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4
Q

What does narrowband mean?

A

relatively low transmission capacity

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5
Q

the transmission capacity of a communications medium faster than 25 megabits per second for download and 3 mbps for upload

A

broadband

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6
Q

What are two examples of broadband connections?

A
  1. Digital subscriber line (DSL)
  2. Cable
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7
Q

What is the ultimate WAN (Wide Area Network)?

A

The internet

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8
Q

short range networks– typically a few meters– that are used for communication among devices close to one person; can be wired or wireless.

A

personal area networks (PANs)

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9
Q

relatively large networks that cover a metropolitan area (falls between LANs and WANs in size)

A

metropolitan area networks (MANs)

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10
Q

typically large networks that cover large geographical areas; in some cases, they can span the entire planet and reach from Earth to Mars and beyond

A

wide area networks (WANs)

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11
Q

Networks represent a compromise among three objectives:

A

speed, distance, and cost

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12
Q

Local area networks are (fast/slow), (inexpensive/expensive) communication with distance (limitations/extensions).

A

fast, inexpensive, distance limitations

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13
Q

connects two or more devices in a limited geographical region, usually within the same building, so that every device on the network can communicate with every other device

A

local area network (LAN)

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14
Q

Most LANs today use ________.

A

Ethernet

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15
Q

WANs typically connect multiple ______.

A

LANs

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16
Q

WANs are generally provided by who?

A

common carriers such as telephone companies and the international networks of global communications services providers

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17
Q

T or F: WANs have large capacities, and typically combine multiple channels (ex: microwave, satellite, and fiber-optic cables)

A

True

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18
Q

communications processors that route messages from a LAN to the Internet, across several connected LANs, or across a WAN such as the internet.

A

routers

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19
Q

high-speed central networks to which multiple smaller networks (such as LANs and smaller WANs) connect

A

backbone networks

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20
Q

T or F: Traditional networks can be rigid and lack the flexibility to keep pace with the increasing business networking requirements.

A

True

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21
Q

an emerging technology that is becoming increasingly important to help organizations manage their data flows across their enterprise networks

A

Software-defined networks

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22
Q

With SDN, decisions that control how network traffic flows across network devices are managed centrally by ______.

A

software

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23
Q

enable computers in a network to transmit and receive data

A

wireline communications media

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24
Q

Today, computer networks communicate through _______ ________, which are discrete pulses that are either on or off, representing a series of bits (0s and 1s)

A

digital signals

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25
Q

The “plain old telephone system” (POTs, which is the U.S. public telephone system), was originally designed as an _________ network to carry voice signals or sounds in an _______ wave format

A

analog

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26
Q

continuous waves that transmit information by altering the amplitude and frequency of the waves

A

analog signals

27
Q

POTs require _____-_____ ______ to convert signals from analog to digital and vice versa; these are almost extinct in most parts of the developed world today

A

dial-up modems

28
Q

modems that operate over coaxial cable (ex: Cable TV)

A

cable modems

29
Q

operate on the same lines as voice telephones and dial-up modems; always maintain a connection, so an Internet connection is immediately available

A

DSL modems

30
Q

a pathway to communicate data from one location to another; it is composed of what two types of media?

A

communications channel:
1. cable (twisted-pair wire, coaxial, and fiber-optic)
2. broadcast (microwave, satellite, radio, or infrared)

31
Q

use physical wires or cables to transmit data and information

A

wireline media/cable media

32
Q

twisted pair wire and coaxial cables are made of:

A

copper

33
Q

fiber-optic cable is made of:

A

glass

34
Q

what is the most prevalent form of communications wiring, and is used for almost all business telephone wiring?

A

twisted-pair wire

35
Q

What is used to carry high-speed data traffic as well as television signals?

A

coaxial cable

36
Q

What is typically used as the backbone for a network?

A

fiber-optic cable

37
Q

What are the four network applications?

A

Discovery, Communication, Collaboration, and Education

38
Q

What is the Web’s Major Strength? How does this present a major challenge?

A
  • Major strength: the vast stores of information it contains
  • Major Challenge: navigating through the web and gaining access to necessary info is becoming more difficult
39
Q

a computer program that searches for specific information by keywords and then reports the results; maintains an index of billions of web pages

A

search engine

40
Q

computer programs that browse the Web and create a copy of all visited pages in order to create indexes for search engine purposes

A

web crawlers

41
Q

search several engines at once and then integrate the findings to answer user’s queries

A

metasearch engine

42
Q

T or F: Multilingual websites are now a competitive necessity

A

True

43
Q

a Web-based, personalized gateway to info and knowledge that provides relevant information from different IT systems and the Internet using advanced search and indexing techniques

A

portal

44
Q

What are the 4 types of portals?

A
  1. Commercial (public) portal
  2. Affinity portal
  3. Corporate portal
  4. Industrywide portal
45
Q

How are the types of portals differentiated?

A

By the audiences they serve

46
Q

most popular type of portal on the Internet; intended for broad and diverse audiences, offers routine content, some of it in real time

A

commercial (public) portal

47
Q

offers a single point of entry to an entire community of affiliated interests, such as a hobby group or a political party (ex: Auburn University most likely has this type of portal for its alumni)

A

affinity portal

48
Q

offers a personalized, single point of access through a Web browser to critical business info located inside and outside an organization; this type of portal offer customer and employees self-service opportunities

A

corporate portal

49
Q

type of portal that serves entire industries (not just one single company like corporate portals)

A

industrywide portal

50
Q

What is the largest volume application running over the Internet?

A

E-mail

51
Q

What are 5 reasons that some U.S. companies are moving their call center operations back to the US?

A
  1. They have less control of their operations when centers are located overseas
  2. Language differences
  3. Risk of breaching customer confidentiality and security
  4. Representatives typically work with many companies, so they may not deliver the same level of customer service that each company requires
52
Q

What are the two major types of chat programs?

A
  1. Web based
  2. E-mail based
53
Q

POTs has been largely replaced by:

A

Internet telephony

54
Q

efforts made by two or more entities who work together to accomplish certain tasks

A

collaboration

55
Q

the movement of information as it progresses through the sequence of steps that make up an organization’s work procedures

A

workflow

56
Q

refers to the use of digital technologies that enable organizations or individuals who are geographically dispersed to collaboratively plan, design, develop, manage, and research products, services, and innovative applications

A

virtual collaboration

57
Q

Virtual teams typically must collaborate (synchronously/asynchronously)

A

asynchronously

58
Q

type of collaboration in which an organization outsources a task to an undefined, generally large group of people in the form of an open call

A

crowdsourcing

59
Q

the use of electronic communication technology that enables two or more people at different locations to hold a conference

A

teleconferencing

60
Q

the latest version of videoconferencing, which enables participants to seamlessly share data, voice, pictures, graphics, and animation by electronic means

A

telepresence

61
Q

T or F: E-learning and distance learning are the same thing.

A

False; they are not the same thing, however they do overlap

62
Q

learning supported by the Web

A

E-learning

63
Q

any learning situation in which teachers and students do not meet face-to-face

A

Distance learning

64
Q

Massive open online courses (or MOOCs) are a new form of (distance learning/e-learning)

A

distance learning

Management Information Systems (5 decks)

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