Lesson 2 Flashcards
Three aspect of Data Communication networks
industry or community,
geographical area , data traffic
There are networks and services freely available for the public
Public Network
Are restricted to some stated groups of users
Private Networks
Is paid by the user, sometimes at flat rate, in other cases for a fee depending on time, on bandwidth and/or on distance of communication
Public Data Network
Provide data communication services without measuring and accounting traffic, others serve closed user groups on otherwise public networks
Private Data Network
separated from the “public” users
Virtual Private Data Network
Are provided to serve international needs and interconnecting national and continental data networks
Global data networks