MIS Ch. 6

Question 0

Elastic

Answer 0

The computing resources leased can be increased or decreased in a short span of time, and organizations pay for just the resources that they use.

Question 1

Cloud

Answer 1

The elastic leasing of pooled computer resources over the Internet

Question 2

Why are cloud resources pooled?

Answer 2

Because many different organizations use the same physical hardware and share that hardware through virtualization

Question 3

Network

Answer 3

A collection of computers that communicate with one another over transmission lines or wirelessly

Question 4

Local Area Network (LAN)

Answer 4

Connects computers that reside in a single geographic location

Question 5

Wide Area Network (WAN)

Answer 5

Connects computers at different geographic locations

Question 6

An internet

Answer 6

A network of networks

• Includes LANs & WANs

Question 7

The Internet

Answer 7

The collection of networks that you use when you send email or access a website

Question 8

Intranet

Answer 8

A private internet that is used exclusively within an organization

Question 9

Protocol

Answer 9

A set of rules that programs on two communicating devices follow

• Ex: http://

Question 10

(SOHO) Small Office or Home Office

Answer 10

A LAN that has fewer than a dozen or so computers & printers

Question 11

IEEE 802.3 Protocol (Ethernet)

Answer 11

A communications standard that specifies how messages are to be packaged, processed, & transmitted for wired transmissions over a LAN

Question 12

IEEE 802.11 Protocol

Answer 12

• Used for wireless LAN connections

Question 13

Bluetooth

Answer 13

Wireless protocol that transmits data over short distances, replacing cables

Question 14

What are the 3 functions of an Internet Service Provider (ISP)?

Answer 14

1. ) It PROVIDES you with a legitimate Internet access.
2. ) It RECEIVES the communications from your computer and passes them on to the Internet, and receives communications from the Internet and passes them onto you.
3. ) It PAYS for the Internet.

Question 15

Digital Subscriber Line (DSL)

Answer 15

Operates on the same lines as voice telephones, but doesn’t interfere with voice telephone service

Question 16

Cable Lines

Answer 16

A WAN connection that provides high-speed data transmission using cable television lines

Question 17

WAN Wireless

Answer 17

A communications system that provides wireless connectivity to a wide area network

Question 18

IP Address

Answer 18

A number that identifies a particular device

Question 19

Public IP Address

Answer 19

Identifies a particular device on the public Internet

Question 20

ICANN (Internet Corporation for Assigned Names & Numbers)

Answer 20

Public agency that controls IP addresses’ assignments

Question 21

Private IP Address

Answer 21

Identifies a particular device on a private network, usually on a LAN

Question 22

Domain Name

Answer 22

A worldwide-unique name that is affiliated with a public IP address

Question 23

URL (Uniform Resource Locator)

Answer 23

An address on the Internet

Question 24

Three-Tier Architecture

Answer 24

A design of user computers that consists of three categories, or tiers: 1. ) User Tier 2. ) Server Tier 3. ) Database Tier

Question 25

Server Tier

Answer 25

Consists of computers that run web servers and process application programs

Question 26

Database Tier

Answer 26

Consists of computers that run a DBMS that processes requests to retrieve & store data

Question 27

Web Page

Answer 27

A document that is usually coded in HTML

Question 28

Web Servers

Answer 28

Programs that run on a server-tier computer and manage traffic by sending & receiving web pages to and from clients

Question 29

Commerce Server

Answer 29

Application programs that run on a server-tier computer and obtain product data from a database, manage the items in a shopping cart, and coordinate the checkout process

Question 30

Service-Oriented Architecture (SOA)

Answer 30

All interactions among computing devices are defined as services in a formal, standardized way.

Question 31

Encapsulated

Answer 31

A characteristic of systems design in which the details of a process are hidden from users

Question 32

TCP/IP Protocol Architecture

Answer 32

Has five layers and one or more protocols defined at each layer; programs are written to implement the rules of a particular protocol

Question 33

Hypertext Transfer Protocol (http)

Answer 33

Used between browsers and Web servers

Question 34

Simple Mail Transfer Protocol (smtp)

Answer 34

Used for email transmissions

Question 35

File Transfer Protocol (ftp)

Answer 35

Used to move files over the Internet

Question 36

Software as a Service (SaaS)

Answer 36

Cloud hosting that provides hardware infrastructure, an operating system, & application programs

Question 37

Platform as a Service (PaaS)

Answer 37

Cloud hosting that provides hosted computers, an operating system, & possibly a DBMS

Question 38

Infrastructure as a Service (IaaS)

Answer 38

Cloud hosting that provides a bare server computer or data storage

Question 39

Content Delivery Network (CDN)

Answer 39

A system of hardware and software that stores user data in different geographic locations and makes it available on demand

Question 40

Virtual Private Network (VPN)

Answer 40

Uses the Internet to create the appearance of private, secure connections

Question 41

Tunnel

Answer 41

A virtual, private pathway over a public or shared network from the VPN client to the VPN server

Question 42

Private Cloud

Answer 42

A cloud that is owned and operated by an organization for its own benefit

Question 43

Virtual Private Cloud (VPC)

Answer 43

A subset of a public cloud that has highly restricted, secure access

Question 44

Remote Action System

Answer 44

IS that provides computer-based activity or action at a distance • Ex: Telediagnosis, Telesurgery, & Telelaw Enforcement

Question 45

Telediagnosis

Answer 45

A remote action system that healthcare professionals use to diagnose illnesses for rural or remote areas

Question 46

Telesurgery

Answer 46

Uses telecommunications to link surgeons to robotic equipment at distant locations

Question 47

Telelaw Enforcement

Answer 47

Uses cameras & motion-sensing equipment to issue tickets for red-light & speeding violations • Ex: RedFlex