Database Management System - DBMS Question with Answer

171. The candidate key is that you choose to identify each row uniquely is called ……………..

  1. Foreign Key
  2. Alternate Key
  3. Primary Key
  4. None of the above

172. Which key is referencing a primary key in a table:

  1. Foreign key
  2. Primary key
  3. Candidate key
  4. All of these

173. The primary key is selected from the:

  1. Foreign keys
  2. Composite keys
  3. Candidate keys
  4. Determinants

174. If an attribute of a composite key is dependent on an attribute of the other composite key, normalization called ............... Is needed

  1. Fourth
  2. DKNF
  3. BCNF
  4. Third

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