Explanation:In the mongo shell, when you assign the cursor returned from the find() method to a variable using the var keyword, the cursor does not automatically iterate. 4. ________ deconstructs an array field from the input documents to output a document for each element.
A. $unwindelem
B. $unwind
C. $unwin
D. None of the mentioned
Answer:A
Explanation:In the mongo shell, when you assign the cursor returned from the find() method to a variable using the var keyword, the cursor does not automatically iterate. 4. ________ deconstructs an array field from the input documents to output a document for each element.
A. $unwindelem B. $unwind C. $unwin D. None of the mentioned