The Internet, Intranet, and Extranet

Internet

A worldwide collection of millions of computers and networks.

internetworking

Internet is Derived from the term “_________”

Internet

It started as the Advanced Research Projects Agency Network (ARPANET) in 1969.

Advanced Research Projects Agency Network

Started in 1969 as a U.S. Department of Defense project called __________ (ARPANET)

National Science Foundation Network

Internet
Evolved into_____________(NSFNET) in 1987

internet backbone

It is a foundation network linked with fiber-optic cables that can support very high bandwidth.

network access points

Internet backbone

Connect ___________ (NAPs)

World Wide Web

A graphical interface to the largely text-based Internet created in 1989.

hypermedia

Documents that can include embedded references to audio, text, images, video, and other documents.

Hypertext

Embedded references in hypermedia documents

links

Hypertext are ____ users can click to follow a particular thread

Domain Name

Unique identifiers of computer or network addresses on the Internet.

IP (Internet Protocol) address

A numerical label assigned by the Internet Corporation for Assigned Names and Numbers (ICANN)

Internet Corporation for Assigned Names and Numbers

IP (Internet Protocol) address
A numerical label assigned by the ______________ (ICANN)

Domain Name System (DNS)

A system that converts domain names into IP addresses.

Uniform resource locators (URLs)

identifies the address of a document or site on the Internet.

Uniform resource locators (URLs)

Suffix indicating the top-level domain (TLD) it belongs to

Organizational TLD (gTLDs)

The suffix indicating the top-level domain such as .com, .gov, or .edu.

Country-code (ccTLDs)

The suffix indicating the top-level domain such as .us, .ph, or .fr.

Hypertext Markup Language (HTML)

the language used to create web pages.

search engines

Give you an easy way to look up information and resources on the Internet

Search engine

Information system that enables users to retrieve data from the Web by searching for information using search terms

Google.com or Ask.com

examples of a search engine

The search process

Three-step process of Search Engines:

1. Crawling the Web

2. Indexing

3. ________

Indexing

Three-step process of Search Engines:

1. Crawling the Web

2. ____

3.The search process

To support internal communication and information sharing within an organization

What is the main purpose of an intranet?

To provide public information about a company

To replace the Internet completely

To support internal communication and information sharing within an organization

To connect various corporate offices to partners

Voice over Internet Protocol (VoIP)

What technology enables voice calls over the Internet?

Show answer choices

Traditional telephony

Telepresence

Telegraphy

Voice over Internet Protocol (VoIP)

searching

A typical search engine's function includes crawling, indexing, and ______

Crawling the Web

Three-step process of Search Engines:

1. __________

2. Indexing

3.The search process

Internet Telephony

Using the Internet rather than the telephone network to exchange spoken conversations.

Intelligent web applications using AI technologies

What is the characteristic of a web application categorized in Web 3.0?

Intelligent web applications using AI technologies

Flash-based animations

Basic HTML links

Simple static interfaces

internal

The difference between a LAN and an intranet is that an intranet is typically used for _____purposes.

VoIP

_____stands for Voice over Internet Protocol, which enables voice communication over the Internet.

Web browser

Which of the following is an example of a navigational tool on the Web?

Email client

Search engine crawler

FTP client

Web browser

geographically dispersed

The increasing use of mobile devices reflects a trend towards a _____Internet.

Domain Name System

What does DNS stand for in the context of the Internet?

Digital Network System

Domain Name System

Domain Navigation Service

Dynamic Network Storage

Retrieves data from the Web using search terms

What primary function does a search engine perform?

Creates web pages

Streams videos

Hosts websites

Retrieves data from the Web using search terms

Facilitates communication between business partners

What is a primary advantage of using an extranet?

Restricts access to internal users only

Increases intranet security

Facilitates communication between business partners

Lowers internet bandwidth usage

An electronic audio file available for download

Which of the following describes a ‘podcast’?

A text-based blog

A live video stream

An interactive web application

An electronic audio file available for download

To syndicate web content

What is a common use of RSS feeds?

To facilitate video streaming

To syndicate web content

To create email alerts

To run web applications

To uniquely identify a device on the Internet.

What is the primary function of the Internet Protocol (IP) address?

To manage email protocols

To uniquely identify a device on the Internet.

To store web data

To secure a network connection

embedded references

Hypertext is characterized by _______ in hypermedia documents.

Voice over Internet Protocol (VoIP)

- Requires high-speed Internet connection and microphone or headset

- International and other long-distance calls are much less expensive

- Used to route traffic starting and ending at public switched telephone network phones

- Call quality has been improving

blogs

Short for 'weblogs'; they are frequent updates intended for the general public, often hosted on free platforms.

navigational tools

Used to travel from site-to-site or to “surf” the Internet

Symmetric DSL

DSL with Up to 1.5 Mbps in both directions

assymetric dsl

Upstream rates 3.5 Mbps

Downstream rates typically 24 Mbps

very High Speed DSL (VDSL)

Downstream/ upstream transmission rate up to 100 Mbps over short distances

T1 or T3 lines

equivalent of 24 conventional telephone lines

Directories

Indexes of information based on keywords in documents

Make it possible for search engines to find what you’re looking for

Directories

Organize information into categories

Automated (crawler-based), Human powered

Types of Directories

Bing.com

A new search platform from Microsoft

“Decision engine”

Graphical Web browsers

Microsoft Internet Explorer (IE), Mozilla Firefox, Google Chrome, and Apple Safari

• Menu options

• View browsing history

• Bookmarking

• Setting viewing preferences

View browsing history

Graphical Web browsers

Microsoft Internet Explorer (IE), Mozilla Firefox, Google Chrome, and Apple Safari

• Menu options

• _________

• Bookmarking

• Setting viewing preferences

Bookmarking

Graphical Web browsers

Microsoft Internet Explorer (IE), Mozilla Firefox, Google Chrome, and Apple Safari

• Menu options

• View browsing history

• ________

• Setting viewing preferences

Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, and Apple Safari

Examples of Navigational Tools

E-mail

One of the most widely used services on the Internet

Web-based e-mail, Client-based e-mail

main types of e-mail

Folders for organization

E-mail programs include:

__________

Address books and distribution groups

Spell checkers

Delivery notification

Spell checkers

E-mail programs include:

Folders for organization

Address books and distribution groups

_________

Delivery notification

Delivery notification

E-mail programs include:

Folders for organization

Address books and distribution groups

Spell checkers

__________

Discussion groups

Formed for people to exchange opinions and ideas on a specific topic

Group members can post messages or articles that others in the group can read

Newsgroups

Typically more general and can be established for any topic

Allow people to get together for fun or for business purposes

Internet Relay Chat (IRC)

Enables users in chat rooms to exchange text messages with people in other locations in real time

Instant messaging (IM)

Service for communicating with others via the Internet in a private “chat room”

Many IM applications are available

web applications

Services and products for a wide range of customers at more competitive prices and with increased convenience

Can be used with minimum costs

Intranets

A network within an organization that uses internet protocols and technologies for collecting, storing, and disseminating useful information that supports business activities.

corporate portals

Intranets

Also called "_______-", they are for internal use by employees.

Electronic funds transfer (EFT)

Electronic data interchange (EDI)

Type of interorganizational system (IOS)

DMZ

Refers to the demilitarized zone, an area of the network that’s separate from the organization’s LAN

Web 2.0

a trend of web applications that are more interactive than traditional web applications, focusing on collaboration or e-collaboration.

Web 3.0

provides context for searching online information and focuses on “intelligent” web applications using various applications of artificial intelligence technologies.

wikis

Allow users to add, delete, and sometimes modify content.

RSS Feed

Really simple syndication” is a fast, easy way to distribute web content in Extensible Markup Language (XML) format.

xml

Flexible method for creating common formats for information

Tags represent the kind of content being posted and transmitted

Defines data with a context

blogs

Short for “Weblog”

Journal or newsletter that’s updated frequently and intended for the general public

wikis

Allows users to add, delete, and sometimes modify content

Information user can also be an information provider

Issue with quality of information

Social Networking Sites

Broad class of Web sites and services that allow users to connect with friends, family, and colleagues online

Facebook, MySpace, and LinkedIN

Popular social networking sites:

twitter

Response or comment no longer than 140 characters

Podcasting

○ An electronic audio file posted on the web for users to download to their mobile devices.

○ It has a specific URL and is defined with an XML item tag, usually collected by an “aggregator” like iTunes or iPodder. Users can subscribe to a podcast.

The Internet2

A collaborative effort involving more than 200 U.S. universities and corporations to develop advanced internet technologies and applications for higher education and academic research.

Gigapop

a local connection point-of-presence whose main function is the exchange of I2 traffic with a specified bandwidth, relying on the NSFNET and MCI’s very high-speed backbone network service.

The internet in 2020

More people will use it

It will be more geographically dispersed

It will be more a network of devices

It will carry much more content

It will be wireless

Cloud computing will continue to grow

It will be greener

Network management will be more automated

Connectivity will become less important

There will be more hackers

politics

healthcare

software distribution

financial institutions

employment

real estate

higher education

publishing

tourism and travel