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Cross Product is a:

  • A.Unary Operator
  • B.Ternary Operator
  • C.Binary Operator
  • D.Not an operator

Answer: C

Correct answer: Binary Operator

The Cartesian product takes two relations and returns one, so it is a binary operator - as are union, difference, intersection and join. Selection and projection are unary, taking a single relation.

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