2. (a) You manage an online resource sharing platform where people can share e-books and others...

   

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2. (a) You manage an online resource sharing platform where people can share e-books and others study materials. A typical upload/download takes ten minutes on average, and an interrupted upload/download must be restarted from the beginning. The number of customers engaged in a activity at any given time ranges from about 960- 1200 during peak hours. On average, your system goes down (dropping all connections) about three times per week, for an average of four minutes each time. You are given the following two options to improve the availability of your system(so that less customers face interruption when they are using your services). [3] i. Reducing total downtime to half (two minutes to restart on average after each crash, but number of crashes remain unchanged). ii. Increasing the current MTBF by 50% (i.e. two system outage per week, but total downtime remains unchanged). Analyze both possibilities to prove statistically which method alleviates more users and decide which option better achieves your goal. 2. (a) You manage an online resource sharing platform where people can share e-books and others study materials. A typical upload/download takes ten minutes on average, and an interrupted upload/download must be restarted from the beginning. The number of customers engaged in a activity at any given time ranges from about 960- 1200 during peak hours. On average, your system goes down (dropping all connections) about three times per week, for an average of four minutes each time. You are given the following two options to improve the availability of your system(so that less customers face interruption when they are using your services). [3] i. Reducing total downtime to half (two minutes to restart on average after each crash, but number of crashes remain unchanged). ii. Increasing the current MTBF by 50% (i.e. two system outage per week, but total downtime remains unchanged). Analyze both possibilities to prove statistically which method alleviates more users and decide which option better achieves your goal.