It varies between 6 months and 1 year, depending on the employer, or if all your paper works have been successfully completed in time.
As early as your first few weeks in A1 and as late as after your B2 exam, you already will have had your interview and have an employer.
Yes, you are to have 30 vacation days free to travel.
Registered nurses with at least 2 years recent work experience in hospitals. Registered nurses with at least 1-year work experience in special areas. Registered nurses with work experience abroad.