The operation of moving from finer granular data to coarser granular data is called _______
(a) Reduction
(b) Increment
(c) Roll up
(d) Drill down
(a) Reduction
(b) Increment
(c) Roll up
(d) Drill down
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The correct choice is (c) Roll up
The explanation is: OLAP systems permit users to view the data at any level of granularity. The process of moving from finer granular data to coarser granular data is called as roll-up.