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Q. Why congestion occurs?
Congestion
Emerge if the load on the network is greater than the capacity of the network
- Load that is the number of packets sent to the network
- Capacity that is the number of packets a network can handle
Why congestion occurs?
- Because routers and switches have queues that hold the packets before and after processing
Congestion control: keep the load below capacity
The packet is place at the end of the input queue
The processing module moves the packet from the queue and forwards the packet
The packet is put in an appropriate output queue
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Describe packet filtering firewall?
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