‘ROLAP’ is preferred over ‘MOLAP’ in which of the following cases?

In a 3-tier architecture of the data warehouse, the OLAP engine is related to:

Which of the following operations performs aggregation on a data cube by dimension reduction?

In order to populate the data warehouse, which of the following set of operations are appropriate?

Among the following, which is NOT the objective of clustering?

Which of the following is the most appropriate data structure for indexing a MOLAP Cube?

Which query would be correlated with a Data warehouse?

Granularity refers to the:

The main objects used by OLAP programs are:

The term OLAP was coined by:

Which techniqe can be used to improve query performance?