Networks and Topologies Flashcards
What is a Network?
A network is 2 or more devices connected together through an Infrastructure, able to exchange information
What does Interoperable mean?
different types of devices and operating systems being able to communicate with each other.
What is a communication network’s function?
Exchanging and sharing information.
What is a network made up of?
The devices in a network are connected via Hardware and Software.
What is Hardware?
What physically connects the computers in the network together.
What is Software
What enables us to use the hardware for communication and exchanging information.
What does Software do?
Enables networks to follow a set of rules called Protocols
Topologies
How components are connected together
What is a Point-to-Point topology
A single connection between 2 components
What is a star topology?
A central component with many point-to-point connections
What is a Bus topology
All components are connected to a single backbone
What is a Ring topology?
the previous device connects to the successive device, this continues until the last device connects to the first one in a circle
When is the Dual ring modes used?
When you need redudancy (FDDI)
What is redundancy in Networks?
providing multiple paths for traffic so data can continue flowing in the event of failure.
What is Token ring topology?
Uses ring topology but uses a token to communicate
What is a Fully Mesh topology?
All components are connected to each other.
What is a Partial Mesh topology
All components can communicate with each other, but aren’t connected to all other components
What does robust mean?
Ability to cope with errors during execution
What are 2 Disadvantages to star topology?
1.Central point failure-Dependant
2.Higher costs
What are 2 advantages to star topology?
1.Easy to install configure
and scale
2.Reduced data collisions
What are 2 Disadvantages to bus topology?
1.If backbone fails network goes down, less reliable
2.Risk of collisions as more nodes
What are 2 advantages to bus topology?
1.Cost effective(Less cabling)
2.Fast data transfer
what are 2 advantages to ring topology?
1.Reduced chances of collision as unidirectional
2.equal access to the network
what are 2 disadvantages to ring topology?
1.Single point failure
2.Limited scalability
what are 2 advantages to mesh topology?
1.Robustness/Fault tolerance
2.Efficient data transmission
What are 2 disadvantages to mesh?
1.Complexity
2.Cost
