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EC More Features of P2P information sharing ? Information available at certain time is the sum of the information content each node shares. ? Nodes can easily join or quit. ? Make use of underutilized resources ? It usually create some redundancy to reduce the impact of single node failure. ? Loadbalancing mechanism. Nov 14, 2023 3 De Liu, CREC Drawbacks of P2P information sharing ? Anonymous . Copyright ? Redundancy . Uptodate ? Quality of Service ? Search Efficiency ? FreeRide! ? Nearly 70% of Gnutella users share no files, nearly 50% of all responses are returned by the top 1% of sharing hosts. … We argue that free riding leads to degradation of the system performance and adds vulnerability to the system. If this trend continues copyright issues might bee moot pared to the possible collapse of such systems. (Adar and Huberman 2023, Free Riding on Guttela) Nov 14, 2023 4 De Liu, CREC Why we propose P2P KM ? P2P technology fit well with K