The strategy can retrieve a single record if the equality condition is on a key;multiple records may be retrieved if the indexing field is not a key is
A. A2
B. A4
C. A5
D. A6
Answer:A
The strategy can retrieve a single record if the equality condition is on a key;multiple records may be retrieved if the indexing field is not a key is
A. A2 B. A4 C. A5 D. A6
Explanation: A4 – Secondary index, equality.