Auser reports that nothing happens when he or she attempts to print from the computer at his desk. this points to a possible problem with what? multitasking disk access device driver file management

What are listed in the vertical columns across the top of the event editor? a. file names b. conditions c. check marks d. action types

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)?

What type of slide show is a dynamic and eye-catching way to familiarize potential customers with what your company has to offer? a. ole b. photo album c. brochure d. office clipboard