In the unified theory of acceptance and use of technology, who provides the technical infrastructure in learning and using the new technology? select one: a. end user b. client c. super user d. tester

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)?

Anetwork security application that prevents access between a private and trusted network and other untrusted networks

Where can page numbers appear? check all that apply. in the header inside tables in the footer at the bottom of columns at the top of columns