Consider a system which uses a ring-based access control mechanism with 9 rings (from 0 to 8). Consider two procedures running in this system p1 and p2. Procedure p1 is executing and needs to invoke procedure p2. Procedure p2’s bracket is (3,5,6). Procedure p2’s ACL gives p1 full (read, write, append, and execute) rights to p2. In which ring(s) must p1 execute for the following to happen? p1 can invoke p2, but a ring-crossing fault occurs p1 can invoke p2 provided that a valid gate is used as an entry point p1 cannot invoke p2 p1 can invoke p2 without any ring-crossing fault occurring, but not necessary through a valid gate.

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?

Your computer running windows 10 is doing some very strange things with the operating system. you are fairly certain it is not a hardware issue. you need to try to get further insight into what is going on within the operating system. which tool would be best-suited for this?

Which example can be considered master data in an organization? a. holiday list b. dress code c. employee information d. recreational activities