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学び始める

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

Introduction. Basic concepts, historical overview.