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Q. Show the Flow characteristics?
Flow characteristics
Reliability - if lacking means that packets or ACKs are lost
- more important with FTP, SMTP than with audio conferencing
Delay - source to destination delay
- telephony, audio & video conferencing more prone to delay
Jitter - variation in delay for packets belonging to the same flow
- real-time audio & video cannot tolerate high jitter
Bandwidth
Consider figure. Assume a new flow E is added that takes a path from R1 to R2 to R6. How does the max-min bandwidth allocation change for the 5 flows?
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Describe packet filtering firewall?
Why are packets important in a network?
Error Detection-- CRC Powerful error detection system Rather than addition, binary division is utilized A series of redundant bits called "CRC" or else "CRC remai
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