How to register for Google AdWords Professional (GAP) Certification
Step 1: Visit Google Online Exam Center
Step 2: Register a new account (you can register a new account with your Gmail user id & password), kindly make a note of your candidate ID.
Step 3: Click on Purchase Test to know about the various exams you’d like to take up
Step 4: Do not buy now 🙂 (Plan to purchase 2 days prior you are ready to give the exam)