

InterviewSolution
Saved Bookmarks
1. |
Point out the wrong statement.(a) If MongoDB can use an index scan to obtain the requested sort order, the result will not include a SORT stage(b) In previous versions of MongoDB, cursor.explain() returned the scanAndOrder field to specify whether MongoDB could use the index order to return sorted results(c) If MongoDB uses indexes for a $and expression, the result will include the AND stage with an inputStages array that details the replicata sets(d) None of the mentioned |
Answer» Right choice is (a) If MongoDB can use an index scan to obtain the requested sort order, the result will not include a SORT stage Easiest explanation: If MongoDB uses indexes for a $or expression, the result will include the OR stage with an inputStages array that details the indexes |
|