Consider a system with an l1 cache, and paging-based virtual memory. the system doesn’t have a tlb. paging is implemented through 2-level hierarchical page tables. all page tables are always in the main memory. l1 cache access time: 2 ns l1 cache hit ratio: 97% memory access time: 30 ns page fault overhead: 100 ms page fault rate: 0.0005 what is the effective memory access time in this system? show your work. (the page fault overhead includes the final memory access time as well as the time needed to access and update the page tables/l1 cache, in addition to disk transfer time. assume that the page table entries are not stored in the l1-cache).

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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?

Do you think media is stereotype ? and why?