Sunday, May 20, 2012

Internet Addresses Activity

1.    What is a URL?
Abbreviation of Uniform Resource Locator (URL) it is the global address of documents and
other resources on the World Wide Web. The first part of the URL is called a protocol identifier
and it indicates what protocol to use, and the second part is called a resource name and it
specifies the IP address or the domain name where the resource is located. The protocol
identifier and the resource name are separated by a colon and two forward slashes.
 
2.    What is an IP address and how is it related to a URL?
In the TCP/IP protocol, the unique identifier for a computer is called its IP address. For nearly
every web server, the IP address is invisibly translated into a natural English "domain name"
or ease of use. But technically speaking, the IP address is the true identifier of a web
server...the domain name is simply a redirector pointer to help people find the web server.
Both the IP address and domain name URL can be used to connect to the same web server:
    • e.g. 72.246.51.15 = www.nasa.gov
    • e.g. 152.91.56.138 = www.gov.au
    • e.g. 208.185.127.40 = www.about.com
3.    Given our school website's URL is http://www.mcauley.nsw.edu.au, what is our domain name and what protocol do you need to use to access the site?
Domain Name- mcauley.nsw.edu.au
Protocol- HyperText Transfer Protocol
4.    In the context of an IP address, what is an octet?
IP stands for Internet protocol, and these addresses are 32-bit numbers, normally expressed a
s four "octets" in a "dotted decimal number." The four numbers in an IP address are called
octets because they can have values between 0 and 255.

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