1. [Anderson] Different systems implement different caching schemes. For example, distributed shared virtual memory systems, distributed file systems, and distributed systems like Grapevine all implement quite different mechanisms. Compare these schemes; why are they different? Is it just that different people wrote those papers and didn't read the others' work? :-) 2. [Brewer] What are the different ways of adding user modules to an OS? 3. [Anderson] What are the different security issues if the NOW project were designed for a non-university environment, and how will you approach those problems? 4. [Brewer] I write an Internet server that can process a certain number of queries (per unit time) gracefully. In addition, I want to impose some sort of priority scheme while processing requests -- I want very high priority for myself (since I wrote it), somewhat high priority for people from Berkeley, and not so high priority for other people. How could I implement such a