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The set of rules or specifications which state that how data can be stored is called…..
a) protocol      
b) database protocol
c) model                      
d) database model

d

How many models are used in database?
a) 3 models                 
b) 4 models
c) 5 models                 
d) 6 models

c

Explanation: Hierarchical model, network model, relational model, object-oriented model, object relational model



Which of the following database model stored data in tree-like structure?
a) hierarchical database model
b) network database model
c) relational database model
d) object-oriented model

a



A database model except that each child can have more than one patent record…….
a) hierarchical database model  
b) network database model
c) relational database model     
d) object-oriented model

b

Which of the following term is used for child in network database model?
a) member                  
b) owner
c) parent                                  
d) none of these

a

Which of the following term is used for parent in network database model?
a) member                   
b) owner
c) parent                                  
d) none of these

b