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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.

In the Relational Model, the number of rows in a table is termed as _______.

  cardinality

  degree

  domain

  None of these

  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
 


 
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