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DBMS Training & SQL Tutorial : Data Models


Answer the following multiple-choice questions about data models used in Database Management.

Formats Info Page/Theory Quiz Review
Multiple choice

Your Performance  

1.

DBTG Codasyl is an example of _______ database.

  network

  object - oriented

  hierarchical

  relational

  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
 


 
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