Entity Framework Quiz-1

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Entity Framework Quiz-1

1.In the Entity Framework, which is the primary object that you use to query and modify data? ObjectContext EntityObject DataContext None Of these 2.Which of the following is NOT TRUE about the Entity Framework? It automatically generates the classes from the model and updates these classes dynamically when the model is changed. It takes care of database connectivity. It provides query syntax for querying the model It does not provide any mechanism to track changes to the model’s objects. 3.What is scalar property? A property of an entity that maps to a all fields in the storage model. A property of an entity that maps to a single field in the storage model. Both None of above 4.Is it possible to change the mappings between the object model and the database/XML (data storage) schema without changing the application code? Yes No 5.Is it possible to carry forward the existing applications built on ADO.NET to the Entity Framework? Yes No 6. Is it possible to create an entity model without a pre-existing database? Yes No 7.True or False: With Entity Framework the queried data is returned as rows and columns or data table records. True False 8.Does Entity Framework support foreign keys? Yes No 9.Is it possible to use Entity Framework with web services and WCF? Yes No 10.True or False: Entity Framework moves the entity model into three XML files that are used by the EF runtime. True False

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