Explanation:There are some limited cases where indexes do not need to fit in memory. 10.________ is the ability of a query to narrow results using the index.
A. Causality
B. Cardinality
C. Selectivity
D. All of the mentioned
Answer:A
Explanation:There are some limited cases where indexes do not need to fit in memory. 10.________ is the ability of a query to narrow results using the index.
A. Causality B. Cardinality C. Selectivity D. All of the mentioned
Explanation:Effective indexes are more selective and allow MongoDB to use the index for a larger portion of the work associated with fulfilling the query. Sanfoundry Global Education & Learning Series – MongoDB.