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Lecture 3 : Network Concepts and Network Media - Coggle Diagram
Lecture 3 : Network Concepts and Network Media
network definition
Effective Networking
security
robustness
reliability
applications
performance
Network Topologies
star
ring
mesh
bus
Categories of network
Metropolitan Area Network(MAN)
extend over entire city
Local Area Network(LAN)
Multiple building LAN
size : limited to a few km
common topologies : bus, ring, star
Single Building LAN
privately owned
links devices in single office, building or campus
Wide Area Network(WAN)
Type of network connection
logical
client server
relationship between computer program - client make service request from server that fulfills request
peer-to-peer
each party has same capabilities and can initiate a communication session
physical
point to point
dedicated link between two devices
multipoint
more than two device share a single link
Layered System View
Extranet(intermediate) - clients, partners, customers
Internet(outer) - global society
Intranet(inner)