MIS 200 Exam 3 Herfurth

the cloud

elastic leasing of pooled computer resources over the internet

Computer Network

a system that connects computers and other devices via communications media so that data and information can be transmitted among them

LAN

Local area network; computers connected at a single physical site

WAN

Wide Area Network; computers connected between two or more separated sites

Intranet

a network designed for the exclusive use of computer users within an organization that cannot be accessed by users outside the organization

Extranet

a network configuration that allows selected outside organizations to access internal information systems

IP address

A number that uniquely identifies each computer or device connected to the Internet.

URL

An easy-to-remember address for calling a web page (like www.code.org).

HTTPS protocol

uses http in conjunction with the SSL/TLS protocol to provide secure communication

VPN

using the public internet to build a secure, private network connecting distant locations

resource elasticity

automatically adjust resources for unpredictable demand

Pooled computer resources

organizations share same physical hardware through virtualization so the cost decreases

Why many organizations are moving to the cloud V.S. why they are not

ARE: lower costs, ubiquitous access, improved scalability, elasticity, virtualization technology, internet-based standards enable flexible & standardized processing capabilities
ARE NOT: when law or standard industry practive require physical control or possession of the data, financial institutions are legally required to maintain physical control over their data

When is VPN used

when you need to remote into the local area network of wherever you need to be

Net Neutrality

the principle that all Internet traffic should be treated equally by Internet Service Providers.

Capital

the investment of resources for future profit

Social media

IT for sharing content amoung networks of users, enables communities of practice

Social capital

social relations with expectation of marketplace returns

Revenue models

Advertising, subscriptions, transaction fees, sales, and affiliate revenue.

Geofencing

location service allowing applications to know when a user has crossed a virtual fence

conversion rate

Frequency someone clicks on ad makes a purchase, "likes" a site, or takes some other action desired by advertiser

vanity metrics

things that dont matter, not tied to organizations strategy or values

Key performance indicators (KPIs)

The quantifiable metrics a company uses to evaluate progress toward critical success factors

success metrics

measurements to track performance toward goals

Social media provider vs. social media user

Providers: facebook, google, linkedin, twitter, etc. attracting demographic groups
Users: individuals and organizations

benefits of social media for organizations

customers can have a direct relationship with the products, organizations can get the word out there

pros vs. cons of problem solving via social media

leaving it, respond to it, or delete it; can be pros and cons to all

value of social capital

number of relationships, strength of relationships, and resources controlled; information, influence, social credentials, personal reinforcement

determining the best revenue model for an organization

advertising, freemium, sales; whichever makes more sense for the organization

how social media fits into organizational strategy

social media changes the balance of power amoung users, communities, and organizations

role of social media in value chain activities

value chains determine business processes, processes determine SMIS requirements, dynamic process flows cannot be designed or diagrammed

threat

can come in different ways, hackers, natural disasters, etc.

vulnerability

threats attack vunerabilities, somewhere a threat could attack

target

aim for money or information, most of the time ends in loss

pretexting

someone pretends to be someone else

sniffing

technique for intercepting computer communications

spoofing

another term for someone pretending to be someone else

phishing

a similar technique for obtaining unauthorized data that uses pretexting via email

hacking

breaking into computers, servers, or networks to steal data

denial of service attack

a cyber attack in which an attacker sends a flood of data packets to the target computer, with the aim of overloading its resources

human safeguard

steps taken to protect against security threats by establishing appropriate procedures for users to follow for system use

technical safeguard

identification and authorization, encryption, firewalls, malware protection, application design

cookie

a small text file that a web server stores on your computer

packet-filtering firewall

examines each part of a message and determines whether to let that part pass

Malware

software that is intended to damage or disable computers and computer systems.

Firewall

a part of a computer system or network that is designed to block unauthorized access while permitting outward communication.

Ransomware

Software that encrypts programs and data until a ransom is paid to remove it.

identification vs. authentication

identification - identifies the user
authentication - authenticates the user (password, PIN, smart cards, biometric auth.)

threat/loss scenario illustration

types of security loss and examples of each

1. Unauthorized data disclosure - people gaining access to data they should and being able to sell it

2. Incorrect data modification - changing data in a companies database

3. Faulty service - making services not work

4. Denial of Service - service doesnt work because of an attack or human error

5. Loss of infastructure - physical hardware or software goes down

common motivations behind hacking

information, money

how DoS works

Human error - inadvertently shut down a web server or corporate gateway router (black friday too many ppl on website)
Malicious hacker intentionally floods a web server with millions of bogus requests to prevent legitamite traffic from getting through

Types of security threats

unauthorized data disclosure, incorrect data modification, faulty service, denial of service, loss of infrastructure

Types of IS security safeguards

technical safeguards, data safeguards, and human safeguards

how organizations decide to manage IS risk

having a plan in place, centralized reporting, specific responses (speed, perparation, dont make the problem worse), practice

How does encryption work?

transforming clear text into coded, unintelligible text for secure storage or communication

How do firewalls work?

computing device that prevents unauthorized access

when and how human safeguards are used in IS security

dissemination and enforcement to train employees on computer safety, termination, being aware of security protocalls, account management, password management, help desk policies

when and how technical safeguards are used in IS security

logging into a system using authentication, knowing https is safe, ecryption when you dont want someone to see your message, firewalls so someone cant get passed and get into the network

BI systems

information systems that process operational and other data to identify patterns, relationships, and trends for use by business professionals and other knowledge workers

Data warehouse

obtain data, cleanse data, organize and relate data, catalog data

data mart

contains a subset of data warehouse information

Metadata

data that describes other data

Knowledge management

finding the right information, keeping the information in a readily accessible place, and making the information known to everyone in the firm

content management systems

support management and delivery of documents, other expressions of employee knowledge

artificial intelligence

The ability of a machine to simulate human abilities such as vision, communication, recognition, learning, and decision making in order to achieve a goal

Weak AI vs. Strong AI

weak: focused on completing a single specific taks
strong: can complete all of the same tasks a human can

Turing Test

Alan Turing said a machine could be considered intelligent if a human could have a conversation with it and not be able to tell if it was a machine or a human

Tasks of BI Systems

informing, deciding, problem solving, and project management

Three primary activities in the BI process

acquire data, perform analysis, publish results

data acquisition options

Three types of BI analysis

reporting, data mining, BigData

how data mining works and why we do it

use sophisticated statistical techniques to find patterns and relationships

Push vs Pull Publishing

Push happens automatically, pull the knowledge workers have to ask for it

Static vs Dynamic reports

static: prepped once from the underlying data
dynamic: at the time of creation, the reporting system reads the most current data and generates the report using the new data

elements of a BI system

role of humans interacting with BI

potential impact of artificial intelligence on the job market

CONCAT

join two or more text strings into one string

COUNTIF/COUNTIFS

Counts the number of cells within a range that meet the given condition

SUMIF/SUMIFS

Adds the cells specified by a given condition or criteria.

AVERAGEIF/AVERAGEIFS

Finds average(arithmetic mean) for the cells specified by a given condition or criteria.

sparklines

small graphs used to represent a series of data; show trends in a series of values, economic cycles, or highlight max or min values

Importance of KPIs

KPIs are often depicted as dashboards with graphs/charts for an at-a-glance status report