Question: Assume a cache (web proxy) is deployed in company A LAN. Assume the following about user's requests and network links: RTT from the company

Assume a cache (web proxy) is deployed in company A LAN. Assume the following about user's requests and network links: RTT from the company router to origin server: 1 sec The company access link rate: 3 Mbps Cache hit rate 50% Delay if requests satisfied from the cache 12 msec avg requested object size: 150k bits avg request rate from users to origin servers: 20/sec LAN rate is 1 Gbps a) What is the company LAN utilization? b) What is the access link utilization? c) What is the total delay?

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