Posted by: ipy031 in Computer on May 20th, 2009

White Hat Hacker

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White Hat Hacker known as the ‘ethical hacker’ (information technology), or can be called an ethics against the attack on computer systems. They realized that the Internet now is the representative of the human voice. A White Hat Hacker will focus itself to build a security network (security system), where the Black Hat (rivals) will try to destroy it.

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Posted by: ipy031 in Technology on May 17th, 2009

The Revolutionary 4G Network

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Access networks 3rd generation (3G) such as WCDMA and CDMA2000 networks have a complex structure and the need to involve a lot of protocols to cover the entire system.Therefore, access networks 4th generation (4G) are expected to have a simpler structure is entirely based on internet protocol (all-IP). Being based on IP, all packet traffic in the access network and backbone network is uniform, without the need to convert one protocol to another protocol.
Most 3G networks are basically built on a network of circuit-switched cellular, where they have a gate (gateways) alone to translate IP packets from the network backbone. 3G networks also have a protocol and its own interface to communicate each other. It’s a separate issue in terms of interoperability. Therefore, to overcome these problems, 4G network is designed as an all-IP network-based packet switched networks like IP-based backbone such as an intranet (LAN, WLAN) and Internet.

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