Transcript Shape of a Network

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 standalone
– 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 – __
 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 __