topologies Flashcards
Star Topology has a central system such as…
a central system such as a hub or switch
which all the devices connect to (tends to have a server)
Bus Topology
all the nodes are connected to a central cable which runs through, data is sent up and down the backbone until it reaches the correct node
(imagine a straight line with other straight lines going off to a node)
Mesh Topology
no central connection,
each node is connected to at least one other node and usually to more than one
(it looks very messy and alot of cables going in alot of places)
Ring Topology
In the ring topology there is a single wire going in a circular motion, like a literal ring.
Advantages of Bus Topology
Easy to connect additional nodes to the network
Less cabling needed, making it CHEAPER !!
cheap
easy to add nodes
Disadvantages of Bus Topology
The whole network fails if the backbone (the main cable) is broken
Having only one cable increases the chances of data collision
-whole network fails if backbone is broken
-one cable increases risk of data collision
Advantages of Star network
Each node is separately connected so the failure of one node does not effect the other nodes
New nodes can be added to the network simply by connecting them to the switch
each node separately connected - failure of one node does not effect the others
new nodes can easily by added
Disadvantages of Star Network
The whole network will fail if the central node or the switch or hub fails
A wired star topology requires alot of cables - this is expensive
Advantages of Mesh Toplogy
nodes can transmit and receive data from more than one node at the same time
New nodes can be added without interruption or interfering with other nodes
Disadvantages OF Mesh Topologies
Many connections require a lot of maintainence
Requires expertise to setup
