It is suggested, but not mandatory, that an individual first attend the training associated with the certification path for that particular exam. MuleSoft training courses are built from the same job-task analyses from which our certifications are developed and contain all the same topics covered in the certification exams. Some individuals with extensive, diverse experience working with MuleSoft products have achieved certification without attending all the applicable training.
We highly recommend that you review the specific Certification exam datasheet for the exam you plan to take for guidance on how best to prepare for the exam.