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.
A. Hashed
B. Unique
C. Multikey
D. None of the mentioned
Answer:A
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.
A. Hashed B. Unique C. Multikey D. None of the mentioned
Explanation: Other than the unique constraint, unique indexes are functionally interchangeable with other MongoDB indexes. 5. Point out the wrong statement :