Online analytical processing (OLAP) Question:
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Aggregations are built from the _________________ by changing the granularity on specific dimensions.
a) Both c and d below
b) schema
c) Dimension table
d) Fact table

Answer:

d) Fact table

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_____operation of OLAP provides alternate presentation of data by rotating it.
a) Slice
b) Roll up
c) Dice
d) Pivot
It is because of __________ that enables OLAP to achieve great performance for a query.
a) Aggregation
b) Composition
c) Dice
d) Hybrid