Chapter 2

Browsing the Web

Web Sites What is a Home Page?

What is a Web Portal? (portal)

Example: Yahoo! Lycos and MSNTypically offer?__________________________________________________

________________________

Web Pages A well-designed Web page draws viewers to

items of potential interest and includes links to lead viewers to investigate other Web pages.

Usually contain the following:

Web Servers

Before a Web browser can display a Web page, it must first ___________________________________________________________.

The Web server responds by sending a copy of the page to the browser. Client-server computing –

________________________________________________________________

Web Servers con’t Client –

___________________________________________________________.

Server – ____________________________________________________________ A server may be located in the same

building, in a nearby building, or, in the case of a Web server, anywhere in the world

IP Address What is an IP address?

An IP address (Internet Protocol Address) ________________________________________________________________.

It ensures that data is sent to the correct computer

An IP address consists of ____groups of numbers, each separated by periods or dots. (ex: 198.80.146.30

IP Addresses Con’t Computers that are always connected to

the Internet, such as Web servers or personal computers with a broadband connections, typically have a _________ or ___________ that seldom changes.

Computers that connect to the Internet via a temporary connection, such as a dial-up connection, generally are assigned to a __________ or ____________ while connected

Domain Names A Domain Name is a

________________________________ Ex: course.com corresponds to the IP address

198.80.146.30 When the domain name is entered into the

browser, the browser must look up the corresponding IP address by requesting the IP address from the __________________ (DNS) name server

Domain Name System (DNS) The Domain Name System (DNS) consists

of _____________________________________________________________________.

Domain names are registered like ___________

The Internet Corporation for Assigned Names and Numbers (ICANN) is the organization that ______________________________________________________________________

Top-level Domain (TLD)

Top-level Domain (TLD) – an abbreviation that identifies the type of organization associated with the domain

.edu .gov

.mil .com

.org .int

.net .name

Uniform Resource Locators (URLs)

Each Web page also has its own unique address. A Uniform Resource Locator (URL) is a ______________________________

http://www.scsite.com/internet/ch2/survey.htm

Protocol Domain name

Path File name