It all depends on the employer or to be specific on the clients/project demand. In few organizations, it is the demand of client/project which makes a BA switch its role from Functional to Technical or vice-versa and few organizations look for only a functional or a technical BA.
Knowing about the simple but the effective answers and understanding about the two - "Business Requirement and Functional Requirement" will make you stand apart from the people getting confused between Business Requirement and Functional Requirement.
What are your strengths and how are you going to utilize your strengths to sell yourself as a assets for a company?
A Business Analyst is a person who acts and works like a bridge between clients and software developers.