Q1. If you want to make a value optional, you need to use nullable types in Entity Framework. As we need to store an integer value, the correct answer is Int.

Q2. The statement is false because the string is a nullable type in .NET. Hence, by default the column will be nullable as well.

Q3. The statement is false. You can remove the conventions from the Entity Framework configuration using the Remove method on the Conventions collection in the model builder.

Q4. Many-to-Default is not a relationship type. One-to-Many (or One-to-Zero-to-Many), One-to-One (or One-to-Zero-to-One), and Many-to-Many are the correct relationship types.

Q5. The answer is false. This approach will become unwieldy if you have many tables in the database.

Q6. By default, Entity Framework will use Unicode types, such as nvarchar for string properties. As there are no constraints on the string property, the correct type will be nvarchar(max).

Q7. Domain is not a relationship type.

Q8. EntityTypeConfiguration is the correct "buddy" class to be used to configure persistence for an entity.