1. In the hierarchical model the relationship between records is expressed as _______.   unique key for each record   parent-child   pointers or links   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. The domain in the relational model is said to be atomic if the elements of the domain consist of _______ units.   redundant   distinct   divisible   indivisible   Half-n-half Clue   4. Which company has developed the hierarchical model?   IBM   Sun Microsystems   Oracle   Microsoft   Half-n-half Clue   5. Which data model organizes the data in the form of tables and relations?   Hierarchical Model   Network Model   Relational Model   Half-n-half Clue   6. In Relational Model, rows are referred to as _______ and columns are referred to as _______.   tuples, attributes   connectors, nodes   attributes, tuples   nodes, connectors   Half-n-half Clue   7. In the Relational Model, each _______ contains values for the _______.   tuple, attributes   entity, domains   relation, entities   attribute, tuples   Half-n-half Clue   FREE PREVIEW: Last 10 Questions not a part of the free preview. Get Premium Membership to view all questions.