ASP.MVC ENTITY Code First (odd problem)

Question

I do not know if I am doing something wrong (probably yes). But EF is persisting the data in a BD and in a table that it creates alone.

I’ve repeated this step-by-step twice and the result is the same.

1-I create a MVC Web Solution that I call Modelo-Index. (The idea was to practice paging and filters, but... I spent all day for nothing...)

2-Create a "sub" project within this solution called Domain and create a POCO class called Student with, Id, Enrollment, Name and Observation.

3-I create another "Sub" project and call it Persistence. I install the Entityframework on it. I add a Register classdbcontext.Cs as follows:

using Dominio;
using System.Data.Entity;
using System.Data.Entity.ModelConfiguration.Conventions;
namespace Persistencia
{
public class CadastroAlunosDbContext : DbContext
{
    public DbSet<Aluno> Alunos { get; set; }

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();
        modelBuilder.Entity<Aluno>().ToTable("Alunos");
        base.OnModelCreating(modelBuilder);
    }
}
}

Then I go to App.config of this Persistence project and add:

<connectionStrings>
<add name="CadastroAlunosDbContext" connectionString="Server=NB-SAUDE-03;Database=CadastroAlunos;User Id=sa;Password=Master123;" providerName="System.Data.SqlClient"/>
</connectionStrings>

Notice that my server is called Server=NB-SAUDE-03 I also specify the database: Database=Student Register Then I run the following commands in Packagemanagerconsole:

Enable-Migrations -Projectname Persistence -Startupprojectname Persistence

Add-Migration "Base Creation" -Projectname Persistence -Startupprojectname Persistence

Update-Database -Projectname Persistence -Startupprojectname Persistence

------So far Everything works as expected---------

I go to SQL Server Objectexplorer and see that my database has been created and the Students table as well. All blz!

But when I run the application in the browser and ask to register a new student. This student did not appear persisted in the bank created. I went looking and found a bank called "Persistencia.Cadastroalunosdbcontext" that I don’t know where it came from. It also has a Students table and the data is being persisted in it and not in what I specified in the Persistence Project’s App.config. Note: This base is being created in what seems to be another instance of SQL, but I only have one installed. Why the EF is creating this bank?