Basics of the Web

Internet machine

is assigned a unique address, which is called an IP address.

DNS servers

(cumulatively) are processing billions of requests across the internet at any given time.

HTTP protocol

used for transmission of files between servers and clients.

IPV4

Each number in a(n) number is called an "octet "because it's a base10 equivalent of an 8- digit base- 2 (binary) number used in routing network traffic.

millions of host

A given domain can potentially contain names as long as they 're all unique to that domain.

online user

Typing in a long IP address is not ideal, or practical, for a(n) to navigate quickly across the Network.

27

Each digit in the binary number is the placeholder for a certain power of two from 2 to , reading from right to left.

domain name

A subdomain is a subdivision of a(n) , allowing you to put content in your URL before your namespace.

Server applications

can be run by PCs, Macintoshes, UNIX workstations and even single terminals.

browser

The makes a HTTP request to the IP address.

EDU

- restricted to schools and educational organizations.

URL

Computers remember numbers, and DNS helps to translate the to an IP address that the machine can use.

DNS

is concerned with a domain name being translated into the appropriate IP address.

numeral strings

Words are easier to remember than .

IP

It acts as a(n) address directory service.

Country code TLDs

represents specific geographic locations.

billions of IP

There are addresses currently in use, and most machines have a human- readable name as well.

domain name

A(n) is part of a URL, which stands for Uniform Resource Locator.

URL

is the abbreviation for Uniform Resource Locator and is known on the World Wide Web as the global address of documents and other resources.

IP

Computers rely on a language consisting of numbers and letters called a(n) address, so that computer networks and servers can "speak to each other ..

Servers that can also be PCs, Macintosh systems or workstations from UNIX

it is the server software that makes them different, not the machine itself

Another significant thing about servers

they are comparatively hard to set up

If you're a non

technical person who wants to be published on the Internet, it's best to rent some room on someone else's site

Among other Internet services, HTTP has its counterparts

FTP, file transfer protocol, and Gopher are protocols which obtain different kinds of information from across the Internet

Web browsers normally prepend http

/ to user-entered URIs automatically, if omitted

So looks a standard IP address

199.123.456.7

An IP address in the IPV4 standard has four numbers separated by three decimals, as in

70.74.251.42

There are only 256 possibilities for the value of each octet

the numbers 0 through 255

For example

.in represents India

COM

commercial websites, though open to everyone

NET

network websites, though open to everyone

ORG

non-profit organization websites, though open to everyone

EDU

restricted to schools and educational organizations

MIL

restricted to the U.S. military

GOV

restricted to the U.S. government

US, UK, RU and other two-letter country codes

each is assigned to a domain name authority in the respective country

For example

If a customer buys a domain with 123 Reg,