Yes, absolutely. Most people have one dominant type and one or two secondary types that may be used as environments or circumstances change. "Pure" types are rare. Your profile is a unique combination of all four factors.
It helps identify the most suitable role in a company. For example, D types excel in crisis management, I in sales, S in support, and C in analytics. Knowing your profile allows for more effective communication with colleagues.
There is no "best" type. Each type has its strengths and growth areas. A successful team represents all types, as they complement each other by covering the "blind spots" of others.
While base behavioral styles are usually stable, the "adapted" style often changes depending on job requirements, life changes, or conscious efforts to improve communication skills.