The choice of whether to use recursion or a loop to solve a specific programming problem is primarily a(n) __________ decision.

Suppose a B-tree of order 5 contains the key values 20, 40, 60 and 70. What happens when we insert the key value 80?

a) All 5 key values can reside at the root node. b) The root becomes 80. c) The root becomes 60. d) The root becomes 40.

__________ memory allocation is the ability for a program to obtain more memory space at execution time and to release space no longer needed.

a) Static b) Active c) Selective d) Dynamic