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# Query Trees Notations Multiple Choice Questions (MCQ) PDF Download

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The MCQ: In notation for query trees, node which is used to terminate execution is classified as; "Query Trees Notations" App Download (Free) with answers: Attribute nodes; Leaf nodes; Stem nodes; Root nodes; for online computer science programs. Practice Query Trees Notations Quiz Questions, download Google eBook (Free Sample) for best online schools for computer science.

## Query Trees Notations MCQs: Questions and Answers

MCQ 1:

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

1. internal nodes
2. external nodes
3. theta nodes
4. entity nodes
MCQ 2:

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

1. attribute nodes
2. leaf nodes
3. stem nodes
4. root nodes
MCQ 3:

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

1. relation tree
2. attribute tree
3. entity tree
4. query tree
MCQ 4:

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

1. attribute nodes
2. leaf nodes
3. stem nodes
4. root nodes

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