MongoDB interview questions part 25
MongoDB interview questions part 25
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Total Questions: 20
1. __________ precision multiplies the monetary value by a power of 10.
Correct Answer is : Exact
2. Point out the correct statement :
Correct Answer is : Applications that handle monetary data often require capturing fractional units of currency
3. Which of the following precision uses two values for the field ?
Correct Answer is : Ambiguity
4. MongoDB stores times in _____ by default, and will convert any local time representations into this form.
Correct Answer is : UTC
5. Point out the wrong statement :
Correct Answer is : If you need to query the database for exact, mathematically valid matches, use Ambiguity Precision
6. ___________ bulk indexes may be more efficient for some kinds of content and workloads in real time.
Correct Answer is : Asynchronous
7. Which of the following is used to handle arbitrary or unforeseen number of precision ?
Correct Answer is : Ambiguity
8. Use of the approximation field for the query and sort operations requires that applications perform _______-side post-processing
Correct Answer is : client
9. The ______ factor is a constant and known property of the currency.
Correct Answer is : scale
10. In one field, exact monetary value is encoded as a _________ data type.
Correct Answer is : character
11. The ________ References pattern stores each tree node in a document; in addition to the tree node, the document stores the id of the node’s parent.
Correct Answer is : Parent
12. Point out the correct statement :
Correct Answer is : The query to retrieve the parent of a node is fast and straightforward
13. The ________ Links pattern provides a simple solution to tree storage but requires multiple queries to retrieve subtrees.
Correct Answer is : Parent
14. The _________ References pattern stores each tree node in array the id(s) of the node’s children.
Correct Answer is : Child
15. Point out the wrong statement :
Correct Answer is : You can query for a node in the children field to find its parent node as well as its siblings
16. Which of the following pattern may provide a suitable solution for storing graphs ?
Correct Answer is : Child
17. Which of the following pattern is more straightforward to use ?
Correct Answer is : Array of Ancestors
18. The Array of Ancestors pattern is slightly slower than the ________________ pattern
Correct Answer is : Materialized Paths
19. The ____________ pattern identifies each node in the tree as stops in a round-trip traversal of the tree.
Correct Answer is : Nested Sets
20. ____________ pattern requires additional steps of working with strings and regular expressions.
Correct Answer is : Materialized Paths
