Database - Data Modeling

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51. Hierarchical model is also called

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Option : A
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52. In E-R diagram generalization is represented by

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Option : D
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53. The method of access which uses key transformation is known as

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Option : B
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54. A table joined with itself is called

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Option : B
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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 ?

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Option : A
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