Question 1 of 120

Query and manipulate data by using the Entity Framework

Assume you call the Add method of a context on an entity that already exists in the database. Which of the following is true? (Choose all that apply)

If there is a key violation, an exception is thrown.
The values are merged using a last-in wins approach.
The values are merged using a first-in wins approach.
A duplicate entry is created in the database if there is no key violation.