Explanation:In general, each index intersection involves two indexes; however, MongoDB can employ multiple/nested index intersections to resolve a query. 3. ________ index type, which indexes the hash of the value of a field.
A. Hashed
B. Unique
C. Multikey
D. None of the mentioned
Answer:A
Explanation:In general, each index intersection involves two indexes; however, MongoDB can employ multiple/nested index intersections to resolve a query. 3. ________ index type, which indexes the hash of the value of a field.
A. Hashed B. Unique C. Multikey D. None of the mentioned
Explanation:Hashed indexes support equality matches and cannot support range-based queries. 4. The _________ property for an index causes MongoDB to reject duplicate values for the indexed field.