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 database, the _______ can be located using the hashing function.   child nodes   primary key   root   None of these   Half-n-half Clue   3. 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   4. SYSTEM2000 is an example of _______ database.   object - oriented   network   hierarchical   relational   Half-n-half Clue   5. DBTG Codasyl is an example of _______ database.   relational   object - oriented   hierarchical   network   Half-n-half Clue   6. In the hierarchical model the relationship between records is expressed as _______.   unique key for each record   parent-child   pointers or links   Half-n-half Clue   7. In the Relational Model, each _______ contains values for the _______.   tuple, attributes   attribute, tuples   entity, domains   relation, entities   Half-n-half Clue