Which principle of object-oriented databases allows for the extension of existing data models with new functionality without altering the existing structure?EncapsulationInheritancePolymorphismComposition

Which of the following best defines the principle of encapsulation in object-oriented databases?Storing objects in a flat file systemThe integration of data with methods that operate on that dataThe use of foreign keys to link tablesNormalization of objects into tables

Which feature is a primary reason for the efficiency of object-oriented databases in handling complex data and relationships?The normalization of data into tablesThe use of relational algebra for queriesDirect support for object references and relationshipsThe ability to execute SQL queries

Which data model does a non-relational database typically use?Review LaterRelational modelHierarchical modelDocument-oriented modelGraph-based mode

Which concept is fundamental for the "open world assumption" in the context of object-oriented databases?The database automatically assumes that incomplete information is incorrect.The database can always extend with new classes without affecting existing objects.All objects must be fully defined and closed to modification.Databases must be closed systems that do not interact with external data sources

Collection of all concepts that must be used to describe database structure is calledstructural modelserver modeldatabase modelclient model