Tuesday, October 13, 2009

Network

1. What type of network do they have? What kind of interface do they use? What kind of medium? What type of communications software? What kind of connecting devices or components



Wal-mart uses both the internet and an intranet; the intranet is guarded against outside access. They use a customized interface that allows them to gain business intelligent from their customers. Along with customized software that helps them build there data banks, they use typical Microsoft software. The technical devices they use are the typical ones that allow them to communicate over TCP/IP. Typically they use a Wide area network s to connect, some of the components would be servers, routers and switches, network cards, linked with cat 5 cabling or 802.11 wireless connections.


2. How do they connect to the internet and at what speeds? Do they use Voice over IP?

Wal-mart connects over the internet using T1 lines and Voice over ip. T1 is a high speed circuit running at speeds up to 1.544 Mbps. Voice over IP allows you to send voice communications over the Internet and avoid toll charges. This helps keep the overhead down.


3. How do they apply the four principles of network security?
Wal mart uses the secure socket layer protocol, which creates a secure and private layer between a web client computer and a web server computer


  • This system encrypts the information
  • Then sends the info over the internet.
  • This SSL protocol comes with a Verisign seal.
  • They also use secure electronic transaction
A transmission security method that ensures transactions are legitimate as well secures.