Which of the following is not an object of the ostream class?

A(n) _______________________ graph is a graph in which each node has a connection to every other node.

A. directed B. cyclic C. acyclic D. fully connected

Which of the following is the reason behind the quick responsiveness of online analytical processing (OLAP)?

a. Matching a user’s query to many sources of information b. The pre-aggregation of detailed data into useful data summaries c. Performing operations on data based on user defined formulas d. An Interactive examination of high-level summary data