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378

Q:

A list consists of last names, first names, addresses, and pin codes. If all the people in the list have the same last name and the same pin code, what would be a useful key?

  • 1
    pin code
  • 2
    last name
  • 3
    a compound key consisting of the first name and the last name
  • 4
    all of the above
  • Show Answer
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Answer : 3. "a compound key consisting of the first name and the last name"

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