1. In the Relational Model, the number of rows in a table is termed as _______.   cardinality   degree   domain   None of these   Hint Half-n-half Clue   2. In the hierarchical model the relationship between records is expressed as _______.   unique key for each record   pointers or links   parent-child   Half-n-half Clue   3. SYSTEM2000 is an example of _______ database.   relational   network   object - oriented   hierarchical   Half-n-half Clue   4. Which of the following are true with respect to Network model? a) Implementing relationship between records is very complex b) It is very useful in representing many-to-many relationships c) Searching for a particular record is very easy   a,b   b,c   a,c   a,b,c   Half-n-half Clue   5. 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   6. In the Relational Model, each _______ contains values for the _______.   relation, entities   entity, domains   attribute, tuples   tuple, attributes   Half-n-half Clue   7. 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