Topologies Flashcards
Star Topology
Devices connected to a central point
Higher fault tolerance
Scalable
Higher cost
Point-to-Point Topology
Direct connection between two networks
Popular in wireless networks”only two systems
“Uses bus topology
Point-to-Multipoint Topology
From one point to multiple points
Usually a router or bridge as primary point
Ring Topology
Each node regenerates the signal
No collisions
Each node is dependant on the operation of it’s neighbor
Mesh Topology
High level of redundancy
Can be very expensive
Each node is connected to each node
# Connections = n(n-1)/2
Hybrid Topology
Eg. Physical Star/Logical Bus
Bus Topology
Physical: Two distinct terminal ends
Logical: Electrical Bus (shared transmission medium)
Single cable that connects all nodes on a network
No fault tolerance
Least expensive
Client-Server
Central server to multiple clients
AdHoc/Peer-to-Peer
Each wireless node is in direct contact with each other
Similar to Mesh Topology
Cellular Networks
Land is separated into “cells”
2G networking = GSM, CDMA
LTE
Long Term Evolution
Based on GMS/EDGE
300 Mbps down/75 Mbps up
HSPA+
Evloved High Speed Packet Access
Based on CDMA
84 Mbps down/22 Mbps up
WiMAX
Worldwide Interoperability for Microwave Access
Fixed: (802.16) 37 Mbps down/17 Mbps up
Mobile: 1 Gbps fixed stations/100 Mbps mobile stations
