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Query Trees Notations MCQs PDF Download – Prep Test

MCQ 1: In a query tree, the operations of relational algebra are classified as:

internal nodes
external nodes
theta nodes
entity nodes

MCQ 2: In the notation for query trees, the node which is used to terminate the execution is classified as:

attribute nodes
leaf nodes
stem nodes
root nodes

MCQ 3: The data structure in the form of tree to correspond to relational algebra expression is classified as:

relation tree
attribute tree
entity tree
query tree

MCQ 4: In a query tree, the input relations of query are classified as:

attribute nodes
leaf nodes
stem nodes
root nodes

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