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Question

Why is the load performance of OLAP systems often longer?

a.

OLAP systems are refreshed daily

b.

Load times for precalculating and loading hypercubes are quick

c.

OLAP systems are not refreshed frequently

d.

Refresh intervals are short

Posted under Data Warehousing and OLAP

Answer: (c).OLAP systems are not refreshed frequently Explanation:The load performance of OLAP systems is often longer because loading all possible hypercubes involves time-consuming precalculations, and OLAP systems are not refreshed daily.

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