Chapter 10

Question 1

system architecture

Answer 1

translates the logical design of an information system into a physical structure that includes hardware, software, network support, processing methods and security

Question 2

ERP

Answer 2

Enterprise Resource Planning: to establish a company-wide strategy for using IT that includes a specific architecture, standards for data, processing, network, and user interface design

Question 3

Platform

Answer 3

a specific hardware and software environment that ensures connectivity and easy integration of future systems

Question 4

SCM

Answer 4

Supply Chain Management: extending internal EPR systems to their suppliers and customers

Question 5

Scalability/extensibility

Answer 5

a systems ability to expand, change, or downsize easily to meet the changing needs of a business enterprise

Question 6

node

Answer 6

a physical device, wired or wireless, that can send, receive, or manage network data

Question 7

applications

Answer 7

programs that handle the input, processing logic, and provide the required output

Question 8

legacy systems

Answer 8

older systems that use outdated technology, but are still functional

Question 9

portal

Answer 9

an entrance to a multifunction Web site

Question 10

corporate portal

Answer 10

provide access to customers, employees, suppliers, and the public

Question 11

server

Answer 11

computer that supplies data, processing services, or other support to one or more computers

Question 12

clients

Answer 12

one or more computers that a server supports

Question 13

mainframe architecture

Answer 13

a system design where the server performs all the processing (or at least significantly more powerful than the clients)

Question 14

LAN

Answer 14

Local area network: allows sharing of data and hardware resources

Question 15

WAN

Answer 15

Wide Area Network: spans long distances and can connect LANs that are continents apart.

Question 16

distributed system

Answer 16

company wide systems that connect one or more LANs or WANs

Question 17

transparent

Answer 17

a user sees the data on the network as if it were stored on his or her own workstation

Question 18

client/ server architecture

Answer 18

refers to a system that divides processing between one or more networked clients and a central server

Question 19

fat/ thick client

Answer 19

a design that locates all or most of the application processing logic is at the client

Question 20

thin client

Answer 20

a design that locates all or most of the application processing logic is at the server

Question 21

two- tier design

Answer 21

the user interface resides on the client, all data resides on the server, and the application logic can run either on the server or on the client, or be divided between client and the server

Question 22

three tier

Answer 22

a user interface runs on the client and the data is stored on the server, and there is a middle layer between the client and the server that processes the client requests and translates them into data access commands to be understood and carried out by the server

Question 23

Application server

Answer 23

the middle layer in a n-tiered system, runs the application logic or business logiv

Question 24

n-tier

Answer 24

a three or more tier design to indicate the intermediate layer(s)

Question 25

middleware

Answer 25

enables the tiers to communicate back and forth

Question 26

DDBMS

Answer 26

Distributed Database Management Systems: data can be stored at more than one location using this

Question 27

cloud computing

Answer 27

refers to the cloud symbol that is often used to represent the internet

Question 28

scaling on demand

Answer 28

matches resources to needs at any given time

Question 29

bandwidth

Answer 29

the amount of data that can be transferred in a fixed time period

Question 30

Web 2.0

Answer 30

an envision of a second generation of the Web that will enable people to collaborate, interact, and share information more dynamically

Question 31

wiki

Answer 31

a web based repository of information that anyone can access, contribute to or modify

Question 32

Internet Operating System

Answer 32

new layers of information are added to the overall enviroment

Question 33

online system

Answer 33

handles transactions when and where they occur and provides output directly to the users

Question 34

OSI model

Answer 34

Open Systems Interconnection model: describes how data moves from an application on one computer to an application on another networked computer

Question 35

network topology

Answer 35

the way a network is configured

Question 36

physical topology

Answer 36

describes the actual network cabling, and connections

Question 37

logical topology

Answer 37

describes the way the components interact

Question 38

hierarchical network

Answer 38

one or more powerful servers control the entire network

Question 39

bus network

Answer 39

a single communication path connects the central server, departmental servers, workstations, and peripheral devices

Question 40

ring network

Answer 40

resembles a circle where the data flows in only one direction from one device to the next

Question 41

star network

Answer 41

central networking device called a switch/hub which manages the network and acts as a communications conduit for all network traffic

Question 42

switch

Answer 42

central networking device

Question 43

hub

Answer 43

was used to connect star networks, but a switch is more advanced technology and better performance

Question 44

data frames

Answer 44

network traffic