Shape of a Network
Topology The way the computers are __ Four different __ __
Four types __
Bus Network Simplest/__ __ Single cable – trunk Computers are passive __ Any computer (node) can pass a __ Transmissions are __ to one computer at a time – one computer is the __ Other __ must wait until the line is free
Collision __ runs into each other CSMA/CD – carrier sense multiple accesses with collision __ Both nodes must back off and wait for __ Single bounce – caused ___ continues uninterrupted to the end of the bus and then keeps ___ and forth along the cable, keeping other nodes from using the line Terminator – __
Disrupting Communication Break in the __ –Physically separated –One end is __ All __ stops Computers can still __ as stand- alone –Just can’t communicate or ___
Network Expansion Cable in a bus ___ can be expanded in one of two ways: –Barrel connector – ___ Connectors weaken __ Continuous cable is __ –Repeater – __ Boosts __ it sends it on its way Better than connector because ___ further and still be correctly received
Advantage/Disadvantage Advantages –Easy to __ –Require less __ –__easy to add and remove __ –Problems __to pinpoint –Breaks mean a ___ in entire network –____ slow network
Star Network Like arms of ___ Stretches out in __ Hub – __ Hub __ in the network boosting signals as they pass It can be a __ panel that simply relays transmission __
Advantages/Disadvantages __ –Centralized __ and management –Expandable –Nodes __ –__ –Break in cable brings down __ Disadvantages –Requires __ –If __
Ring Network Nodes __ Data __ Each __ : –The one that __ –The one to which __ The failure of one node __
Token Passing A way to avoid __ and help data run smoothly Computers __ of bits – tokens A node has to wait __ Computer __ token to let other nodes know that a token is in use Token __– 186,000 miles per second
Advantages/Disadvantages Advantages –Each __ –Do __ Disadvantages –Problems __ –Break __
Mesh Network Computer __
Advantages/Disadvantages Advantages –Provides __ –If __ –Easy __ Disadvantages –Expensive __