Assumptions: average object size : 2M bits, average request rate from browsers t

Question

Assumptions: average object size: 2M bits, average request rate from browsers to origin server: 12/sec, Response from Institutional router to any origin server: 2.5 sec, speed of institutional LAN speed: 150Mbs, speed of access link: 10Mbs

a.) What is the average response time of the network?

b.) If the institution paid to increase the speed of their access link to 100 Mbs what would be the average response time (making original assumptions, i.e. no web cache)

c.) If the institution paid to increase the speed of their access link to 20 Mbs and add a local web cache with 45% hit rate what would be the average response time?

Explanation / Answer

2) if the speed is increased for 100 mbps than the speed of processor will by 10 times .

3) if it is increased by 20 mbps the through put time will be increasrd by 2 times

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