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Question

Point out the wrong statement.

a.

Boolean expressions evaluate their argument expressions as booleans and return a boolean as the result

b.

In addition to the false boolean value, Boolean expression evaluates as false the following: null, 0, and undefined values

c.

Set expressions performs set operation on arrays, treating arrays as sets

d.

None of the mentioned

Posted under Aggregation Concepts and Aggregation Mechanics MongoDB

Answer: (d).None of the mentioned

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