1. In the Relational Model, the number of columns in a table is termed as _______.   cardinality   degree   domain   None of these   Hint Half-n-half Clue   2. For a database to be considered as full-fledged RDBMS, it has to comply with at least _______ out of the 12 Codd's rules.   1   6   9   10   Half-n-half Clue   3. What is the set of attributes that collectively identify an entity in an entity set known as?   Super Key   Foreign Key   Unique Key   None of these   Half-n-half Clue   4. What is the minimum subset of the super key that can be used to uniquely identify an entity in an entity set known as?   Candidate Key   Foreign Key   Unique Key   None of these   Half-n-half Clue   5. If a column or a set of columns of Table A correspond to a primary key of another Table B, then these set of columns in Table A are known as a _______ key.   reference   foreign   primary   Half-n-half Clue   6. In the Network data model, relationship between records is implemented using _______.   keys   pointers   parent-child relationship   None of these   Half-n-half Clue   7. In the Relational Model, the number of rows in a table is termed as _______.   cardinality   degree   domain   None of these   Half-n-half Clue