INSY 2303 Exam 2 UTA

Social Media

Online services that facilitate communication and interaction among people who want to share information about their lives, issues, and events using a multimedia mix of text, pictures, video, and audio

Social Media Honeycomb

Provides a visual model for classifying and comparing various social media services

Social Media

Online services that facilitate communication and interaction among people who want to share information about their lives, issues, and events using a multimedia mix of text, pictures, video, and audio

Social Media Honeycomb

Provides a visual model for classifying and comparing various social media services

4 groups of social media

1. Social Networking

Ex. Facebook

2. Geosocial networking

Ex. Google Maps

3. Content communities

Ex. Youtube, Instagram

4. Online communities

Ex. Snapchat, Tumblr

Online Identity

A persons presence on a social media service

Social Media Profile

the set of information provided to friends, contacts, and the public

Geosocial Networking

Provides a platform for users to carry out interactions based on their current locations

Social Discovery

uses geolocation to meet with people who are nearby and have similar interests

Crowdsourcing

When individuals contribute computer time, expertise, opinions, or money to a defined project

4 ways the location of a device can be determined

1. GPS trilateration

2. Cell tower triangulation

3. Hotspot triangulation

4. IP address lookup

Content Community

Focus on text-based information, or their focus may be on other media, such as photos, music, or video

Metadata Tag

A keyword that describes information, such as the content of a media element

Formal Tagging

Add information to a tag according to a set of tagging standards

Intellectual Property

All of the creations that materialize from the mind or intellect

Trademark

any word, name, symbol, or design used in commerce to identify and distinguish the goods of one company from those of another

Copyleft

designed to make a work freely available for distribution and modification under the condition that all derivative works use the same license

Fair use and 4 factors

- Allows for the limited use of copyrighted material without obtaining permission from the copyright holder

1. The purpose and character of the use

2. The nature of the copyrighted work

3. The amount of the copyrighted work that is used

4. The effect on the value of the copyrighted work

Blog

similar to an online diary; it is maintained by a person, company, or an organization, and it contains a series of entries on one or more topics

RSS reader and blog aggregator

a "feed" that monitors your favorite blogs, collects the latest posts, and displays them

Microblogs

a short blog post

Ex. A tweet

Wiki

a collaborative web application that provides tools that enable contributors to post, read, and modify content

Email Message

electronic document transmitted over a computer network

Email server

a computer that essentially acts as a control post office for a group of people

Standard Format of email messages

consists of a message header and the message body

Store-and-forward technique

When you use local email, an internet based email server stores your incoming messages until you launch your email client and get your mail

Instant Messaging

a synchronous, real-time technology for two or more people to type messages back and forth while online

Online Identities

Nearly 40% of all online identities are fake

Sockpuppets

any online identity created and used for purposes of deception

Online Reputation

impression that is generated by an online persona

Doppelgangers

2 or more online personas with the same name or username

Privacy

the right to be left alone

Executable File

Contains a computer program that is carried out step-by-step within the microprocessor

System requirements

specify the operating system and minimum hardware capacities necessary for a software product to work correctly

Software Upgrade

When a new version or edition of a software product is released

Software Update

a small section of program code that replaces part of the software currently installed

Service Pack

refers to a set of updates

Software pricing models

1. One-time purchase: the software remains the same as when it was purchased

2. Subscription: consumers pay an annual fee to use software

3. Trial: consumers use a software product during a free trial period

4. Freemium: provides free use of a stripped down or basic version of the product but requires payment for upgrades

Software License

a legal contract that defines the ways in which a computer program may be used

Operating system

gives your digital device a personality

Operating system categories

Desktop, mobile, server

Kernel

provides the essential operating system services, such as memory management and file access

Resource

refers to any component that is required to perform work

Multitasking

provides process and memory management services that allow 2 or more tasks to run simultaneously

Multithreading

allows multiple commands, or threads to run simultaneously

Multiprocessing

a capability that supports a division of labor among all the processing units

Memory leak

an application requests memory but never releases it

Buffers

collect and hold data while the device is busy with other tasks

Microsoft Windows

Installed on more than 80% of worlds PC's

Limitations of iOS

-Limits selection of apps to those provided by the app store

-Background processes, such as music, voice calls, and notifications, provide very limited multitasking capabilities

Android

mobile operating system that is a popular platform for tablet computers, smartphones, and ebook readers

Thin Client

depends substantially on processing and storage provided by a remote computer

Virtual machines

allows one computer to simulate the hardware and software of another

Web Apps

software that is accessed with a web browser

Examples of Web Apps

Popular web apps include: Gmail and google docs

Allow several people to collaborate on projects

Mobile Apps

designed for a handheld device such as a smartphone, tablet computer, or enhanced media player

Jailbreak

an unauthorized change to the devices software

Rooting

the process off making unauthorized modifications to any mobile device

Local Applications

installed on a computers hard disk

Ex. office suites, games, and professional software tools

Portable Software

designed for PC's and it runs from removable storage, such as a USB flash drive

Office Suite

collection of programs that typically include word processing, spreadsheet, and presentation modules

Spreadsheet

uses rows and columns of numbers to create a model or representation of a real situation

Automatic recalculation

when you change the contents of any cell in a worksheet, all the formulas are recalculated

Database

simply a collection of data that may be stored on one or more digital devices

Record

holds data for a single entity

Field

holds one item of data relevant to a record

Presentation Software

supplies tools for combining text, photos, clip art, graphs, animations, ad sound into a series of electronic slides that can be shown on a screen or projector

EX. Powerpoint

Computer File

a named collection of data that exists on a storage medium, such as a hard disk, cloud drive or USB flash drive

Device letter

storage devices where files can be saved

directory

contains a list of files

root directory

the main directory

file path

a computer file's location

File management utilities

File organization tools

Default application

software application associated with a specific file type

Ways of manipulating files and folders

1. Rename

2. Copy

3. Move

4. Delete

Encryption

transforms a message or data file in such a way that its contents are hidden from unauthorized readers

Authentication Protocols

Passwords, PINs, and fingerprint scanners

Brute force attack

uses password cracking software to generate every possible combination of letters, numerals, and symbols

Dictionary attack

helps hackers guess your password by stepping through a dictionary containing word lists in common languages

Password Manager

stores user IDs with their corresponding passwords

Malware

refers to any computer program designed to surreptitiously enter a digital device

Common classifications of malware

Viruses, worms, trojans

Computer virus

a set of self-replicating program instructions that surreptitiously attaches itself to a legitimate executable file on a host device

Code injection

the process of modifying an executable file or data stream by adding additional commands

Side-loading

an app from a source other than an official app store is installed on a device

Rootkit

Any code that is designed to hide the existence of processes and privileges

Computer Worms

self-replicating, self-distributing program designed to carry out an unauthorized activity on a victim's device

Trojan

computer program that seems to perform one function while actually doing something else

Dropper

designed to drop a malicious code into a device

Antivirus software

type of utility software that looks for and eliminates viruses, trojans, worms, and other malware

Online intrusion

takes place when an unauthorized person gains access to a digital device by using an internet connection and exploiting vulnerabilities in hardware or software

different types of intrusions

RATs, Ransomware, Botnets, Backdoor, DDoS

Zero-day attack

exploits previously unknown vulnerabilities in software applications, hardware, and operating system program code

Netstat

produces a detailed list of open ports on a device

Firewall

a device or software that is designed to block unauthorized access while allowing authorized communications

Personal firewall

a set of rules to block data or allow it to enter a digital device

Spyware

any software that secretly gathers personal information without the victim's knowledge

Adware

monitors web-browsing activity to supply ad-serving sites with data used to generate targeted ads

Evil twins

a LAN server that is designed to look like a legitimate Wi-fi hotspot

Spam

defined as unsolicited messages that are usually sent in massive numbers using electronic mail systems

Phishing

an email scam that masquerades as a message from a legitimate company or agency of authority; goal is to obtain private information

Pharming

redirects website traffic to fraudulent websites that distribute malware and collect personal data