Saturday, 2 June 2012

Internet Infrastructure

Assalamualaikum and hello readers. Basically, this is the final post for this subject and hopefully it will somehow benefits all of you.
In this posting, it will be based on the Hierarchy of Networks, Internet Protocol (IP), Domain Name System (DNS), Internet Service Provider (ISP) and last but not least HTTP.

1. From single computer to Local Area Networks, which means to lots of other computers.
2. From Local Area Networks to Internet Service Provider (ISP) such as Maxis and TMNet
3. From ISP to World Wide Web (WWW)

- It is an Internet standard protocol that provides a common layer over dissimilar network.
- The role IP: It is to move packet among "host" computer through gateways
- Every computer is assigned with different and unique IP address
- IP address consists of 32 bits [Shown as 4 octets of numbers from 0-225 which is represented in decimal form instead of binary. 

BINARY: 101010000.11010100.11100010.11001100

- IP address has two parts; identifying the network and identifying the node/host

- Class of addresses determines which part belongs to the network address and which belongs to the nodes.
- All the nodes on a given network share the same network prefix. However, it must have a unique host number.

- It is an Internet service that translates domain names like into numerical IP address like
- Domain names are alphabetic hence it is easier to remember.

- Directly connects client to the Internet via copper wires, wireless or even fiber optic connections.
- There are basically FOUR types of ISP which are hosting, transit, virtual and free ISPs.

- HTTPS stands for Hypertext Transfer Protocol Secure.
- Provides encrypted communication to prevent eavesdropping and to securely identify the web server with which you are actually communicating.
- Used for protecting page's authenticity on all types of website, securing accounts as well as keeping user's communication, identity and browsing history private.

With that, that's all from me. Hope you readers enjoyed browsing through and gain some input from what have been posted here. ^^