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To modify an existing index, you cannot just re-issue the _________ method with the updated specification of the index.

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To modify an existing index, you cannot just re-issue the _________ method with the updated specification of the index.

(a) dropIndex()

(b) modIndex()

(c) createIndex()

(d) none of the mentioned

This question was posed to me in homework.

Query is from Index Management in chapter Index/Indexing Concepts of MongoDB

1 Answer

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Right answer is (c) createIndex()

To elaborate: To modify the index, you must drop the index first.

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