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Frage		Antworten
What is PAN? Lernen beginnen		Personal Area Network, Nearest neighborhood, < 1 m
What is LAN? Lernen beginnen		Local Area Network, Room building areal, 10m 100m 1km
What is MAN? Lernen beginnen		Metropolitan Network, Town City Country, 10km 100km 1000km
What is WAN? Lernen beginnen		Wide Area Network, Continent, 1000km
What node roles are there? Lernen beginnen		peer-to-peer, client-server, master-slave
What mediums are there for networks to travel? Lernen beginnen		Metalic, optics, wireless
What mode of transportation are there for data networks? Lernen beginnen		Connection oriented (Circuits), Connectionless (packets)
What data networks architectures are there? Lernen beginnen		ISO/OSI, TCP/IP, X. 25 and so on
What’s a network architecture? Lernen beginnen		Method of communication and definition of the set of used protocols and layers
Whats‘s network topology? Lernen beginnen		Way of interconnection of elements in the network
Examples of topologies? Lernen beginnen		Bus, ring, star, extended star, hierarchical, mesh
Why is network architecture useful? Lernen beginnen		Implementation if the network at all is too complicated, so we decompose the problem into smaller parts (layers)

Introduction. Basic concepts, historical overview.