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Relations produced from an E-R model will always be

  • A.First normal form.
  • B.Second normal form.
  • C.Third normal form.
  • D.Fourth normal form.

Answer: A

Correct answer: First normal form.

Mapping an E-R model produces tables whose entries are single atomic values, which is precisely first normal form. The higher normal forms depend on the functional dependencies among the attributes and are not guaranteed by the mapping.

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