Please enable JavaScript.
Coggle requires JavaScript to display documents.
unit 3 - network - Coggle Diagram
unit 3 - network
disadvantages
-
-
-
If the server goes down, all computers fail.
-
star
-
Where one or more central switch, hub or computer acts as a central conduit to transmit messages
-
disavantages
-
Extra hardware required, such as a hub
-
-
Ring
-
Each node connects to exactly two other nodes, providing a single pathway for signals through each node.
advantages
The transmission of data is simple as packets travel in one direction only, so no collisions.
-
-
disadvantages
If any of the computer systems fail, the ring is broken and data cannot be transmitted efficiently
-
-
-
network topologies
-
Bus
-
The bus has terminators on each end, which are needed to close each end of the cable.
-
the computers are connected to a single cable on which data can be sent, called the bus.
As the packets arrive at each computer system, it checks the destination address contained in the packet to see if it matches its own.
If the address does not match, the computer system ignores the packet. If the address of the computer system matches that contained in the packet, it processes the data.
-
-
