D | Question 23 4 pts A key difference between indexing and hashing-based information retrieval is that ?a) Hashing requires much simpler control structures b) Hashing avoids a sequential (linear) search of the index file/table entries c Indexing schemes cannot be extended to search on multiple keys d) None of the above D Question 24 4 pts The "no-write-down" rule in the Bell LaPadula (BLP) model ensures that ?a) A lower level process does not disclose data to a higher level process ?b) A lower level process does not read data from a higher level process ?c) A higher level process does not read data from a lower level process d) A higher level process does not disclose data to a lower level process e) None of the above