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ER Model Related DBMS Aptitude Questions and Answers | Set 2

List of ER Model Related DBMS Aptitude Questions and Answers.

6) Partial participations represented by?
  1. Double Line
  2. Single Line
  3. Both 1 and 2
  4. None of these

7) An Entity set that does not contain primary key is known as?
  1. Derived Attribute
  2. Sub Attribute
  3. Strong Entity Set
  4. Week Entity Set

8) Is derived attribute physically contained in relation?
  1. Yes
  2. No
  3. Sometimes
  4. None of these

9) Is ER Model extension of data flow diagram?
  1. Yes
  2. No
  3. Sometimes
  4. None of these



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