1. Consider the case of an institutional network with a 15Mbps connections to the internet. Let the total average response time for a HTTP request be the sum of the average access delay (institutional router to access link router) and average internet delay. Assume the access delay is d/(1-db), where d is the average transmission delay and b is the request rate. If the average object size is 950,000 bits, the average request rate from the institutions browsers to the origin server is 16 requests per second, and that the average round trip response time for a HTTP request forwarded by the router on the access link is 3 seconds (router to source server and back == internet delay).What is the total average response time? If a cache is installed in the institutional LAN and the miss rate is 0.5, what will the total response time be?