Question: Determine access link utilization and total delay for the topology shown in the figure. Assumptions: - Avg object sire: 100K bits - Avg- request rate

Determine access link utilization and total delay for the topology shown in the figure. Assumptions: - Avg object sire: 100K bits - Avg- request rate from browsen to origin servers: 150/ sec - RTT from institutional router to any origin server 1 sec - Access link rate: 15 Mops - Cache hit rate: 0.6 How about when no proxy cache is used

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