1. DBTG Codasyl is an example of _______ database.   network   object - oriented   hierarchical   relational   Hint Half-n-half Clue   2. Which data model organizes the data in the form of tables and relations?   Relational Model   Hierarchical Model   Network Model   Half-n-half Clue   3. SYSTEM2000 is an example of _______ database.   relational   object - oriented   network   hierarchical   Half-n-half Clue   4. In Relational Model, rows are referred to as _______ and columns are referred to as _______.   attributes, tuples   nodes, connectors   tuples, attributes   connectors, nodes   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 hierarchical model the relationship between records is expressed as _______.   parent-child   unique key for each record   pointers or links   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