MongoDB Practice Test 7

1. Comparison expressions return a boolean except for ________ which returns a number.

2. _____ indexes uses planar geometry when returning results.

3. Which of the following accepts a single argument expression?

4. Which of the following ignores non numeric values?

5. In MongoDB __________ mongos retrieves the results from each shard, performs a merge sort to order the results.

6. Which of the following accepts any number of argument expression?

7. db.collection.aggregate() returns a _______ and can return result sets of any size.

8. Which of the operator is similar to order by clause in RDBMS?

9. If all documents for the $min operation have null value for the field or are missing the field, the $min operator returns ____ for the minimum value.

10. Which of the following returns the value that results from applying an expression to the last document?