→ Introduction. Basic Concepts, Historical Overview. →开始学习 /下载MP3 Flashcards

开始学习

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

Introduction. Basic concepts, historical overview.