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Total Questions : 11 | Page 2 of 2 pages
Question 11. Which one of the following attribute can be taken as a primary key ?
  1.    Name
  2.    Street
  3.    Id
  4.    Department
 Discuss Question
Answer: Option C. -> Id


IdThe attributes name , street and department can repeat for some tuples.But the id attribute has to be unique .So it forms a primary key.


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