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Question

Point out the wrong statement.

a.

Query selectivity refers to how well the query predicate excludes or filters out documents in a collection

b.

Query selectivity can determine whether or not queries can use indexes effectively or even use indexes at all

c.

More selective queries match a larger percentage of documents

d.

All of the mentioned

Answer: (c).More selective queries match a larger percentage of documents

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Q. Point out the wrong statement.

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