internet

According to me communication means of all the world

Hi ponnam are yu asking all networking question ? Are yu improving your knowledge this way ; or are yu working any networking firm/ are yu teacher asking only questions ? ? ? ? ? ? ? ? All questions

Extranet provides a network that connects the companies with suppliers or other business partners. An extranet can be any of the following types • public network • secure/private network • virtual private network(VPN) Information on extranet is secured to prevent security breaches from unauthorized users. Authorized users connect transparently to another company’s network via the extranet. Extranet provide private infrastructure for companies to co ordinate their purchases, exchange business documents and to communicate with each other.