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51. Hierarchical model is also called
Tree structure
Plex Structure
Normalize Structure
Table Structure
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52. In E-R diagram generalization is represented by
Ellipse
Dashed ellipse
Rectangle
Triangle
53. The method of access which uses key transformation is known as
Direct
Hash
Random
Sequential
54. A table joined with itself is called
Join
Self Join
Outer Join
Equi Join
55. The following functional dependencies hold for relation R(A, B, C) and S(B, D, E) B —> A, A —> C , the relation R contains 200 tuples and relation S contains 100 tuples. What is maximum number of tuples possibles in natural join R and S ?
100
200
300
400
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