Amessage of length 8x106 bits is to be sent from host a to host b, routed through 2 packet switches. the transmission capacity of each of the three links is 2 mbps. ignoring propagation, queuing and processing delay, how long will it take to move the message as a single packet from host a to host b assuming each packet switch uses store-and-forward switching? how long will it take if the message is broken into 10,000 bit packets?

Suppose you are an ad-serving company and you maintain a log of cookie data for ads you serve to the web pages for a particular vendor (say amazon). a. how can you use this data to determine which are the best ads? b. how can you use this data to determine which are the best ad formats? c. how could you records of past ads and ad clicks to determine which ads to send to a given ip address? d. how could you use this data to determine how well the technique you used in your answer to part c was working? e. how could you use this data to determine that a given ip address is used by more than one person? f. how does having this data give you a competitive advantage vis-à-vis other ad-serving companies?