Is each of the below items a type of secondary memory? For each item, you must respond either YES or NO, then justify your answer in a single sentence. a) DRAM b) registers c) hard disk d) L1 cache e) L2 cache f) L3 cache g) address decoder

Which operating system is a version of linux?

Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?

The option enables you to modify a slide element in most presentation applications.