gs gs112 Data Models - Model Tree Structures - Quiz No.1
gs gs112 MongoDB Quiz
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Question 1: 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.
Child
Parent
Root
None of the mentioned
Question 2: Point out the correct statement.
The query to retrieve the parent of a node is fast and straightforward
The query to retrieve the parent of a node is slow and straightforward
The query to retrieve the parent of a node is slow and complex
All of the mentioned
Question 3: The ________ Links pattern provides a simple solution to tree storage but requires multiple queries to retrieve subtrees.
Child
Parent
Root
All of the mentioned
Question 4: The _________ References pattern stores each tree node in array the id(s) of the node’s children.
Child
Parent
Root
None of the mentioned
Question 5: Point out the wrong statement.
You cannot query for a node in the children field to find its parent node only
You can query for a node in the children field to find its parent node as well as its siblings
You can query for a node in the children field to find its siblings only
None of the mentioned
Question 6: Which of the following pattern may provide a suitable solution for storing graphs?
Child
Parent
Root
None of the mentioned
Question 7: Which of the following pattern is more straightforward to use?
Materialized Paths
Array of Ancestors
Nested Sets
None of the mentioned
Question 8: The Array of Ancestors pattern is slightly slower than the ________________ pattern.
Materialized Paths
Array of Ancestors
Nested Sets
None of the mentioned
Question 9: The ____________ pattern identifies each node in the tree as stops in a round-trip traversal of the tree.
Materialized Paths
Array of Ancestors
Nested Sets
None of the mentioned
Question 10: ____________ pattern requires additional steps of working with strings and regular expressions.
Materialized Paths
Array of Ancestors
Nested Sets
None of the mentioned
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