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which of the following operations returns documents matching both queries?

43. which of the following operations returns documents matching both queries?

  1. (query1) & (query2)
  2. (query1) | (query2)
  3. ~(query1)

Answer: A) (query1) & (query2)

Explanation:

(query1) & (query2) operations, return documents matching both queries.

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