Explanation: MongoDB can support keyword searches using specific data models and multi-key indexes. 5. Point out the wrong statement :
A. If you need to query the database for exact, mathematically valid matches, use Exact Precision
B. If you regularly need to perform server-side arithmetic on monetary data, the exact precision model may be appropriate
C. If you need to query the database for exact, mathematically valid matches, use Ambiguity Precision
D. None of the mentioned
Answer:A
Explanation: MongoDB can support keyword searches using specific data models and multi-key indexes. 5. Point out the wrong statement :
A. If you need to query the database for exact, mathematically valid matches, use Exact Precision B. If you regularly need to perform server-side arithmetic on monetary data, the exact precision model may be appropriate C. If you need to query the database for exact, mathematically valid matches, use Ambiguity Precision D. None of the mentioned
Explanation:If you need to be able to do server-side arithmetic, e.g., $inc, $mul, and aggregation framework arithmetic, use Exact Precision. 6. MongoDB stores times in _____ by default, and will convert any local time representations into this form.