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12180745
1.5 Network Topologies, Protocols and Layers.
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Mapa Mental sobre 1.5 Network Topologies, Protocols and Layers., criado por Niamh Wyatt em 09-02-2018.
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Niamh Wyatt
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1.5 Network Topologies, Protocols and Layers.
What is a mesh network?
some or all of the workstations/devices are connected directly with each other.
usually connected to the node they exchange the most data with.
What is a star network?
each device is connected to an individual cable directly to the server.
usually the layout of choice in schools/offices because they tend to be most reliable.
Benefits of Ethernet cables.
stable connection.
reduced possibility to hacking.
more secure.
faster traffic speed.
good quality signal.
Benefits of wifi.
cheap to set up.
more vulnerable to hacking.
signal quality will reduce through walls.
user not tied down to specific location.
tends to have slow transfer speeds.
encryption.
method of scrambling data with a key code which makes no sense.
public wifi or an open resource can be encrypted.
What is a network?
is a number of computers linked together to allow them to share resources.
Toplogies
arrangement of various elements of a network.
Devices connect together.
Protocols.
a specific set of communication rules.
Layers.
the organization of programming into separate functional components that interact.
If one layer fails, the others can be taken out without being affected.
Trouble shooting made easier, should an error occur.
Network communication is standardized.
POP
Post Office Protocol.
HTTP and HTTPS
HTTP - hypertext transfer protocol.
HTTPS - hypertext transfer protocol secure.
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