You must know the following information before you start doing Digital Marketing for yourself or your clients. You can ask them following questions:
Examples are – Pan India, Tier-1 Cities, National Capital Region, etc.
Examples are – Rajiv Nagar, IFFCO Chowk, Andheri East, etc.
Examples are – 15-25, 25–35, 35-45 etc.
Examples are – Movies, Cricket, Books, etc.
For Facebook, Linked In, Twitter, others
Examples are: Manufacturers, Accountants and Hotel Owners etc.
Always provide Examples as answer with your question. Visitors will be able to understand it better.