Tableau has multiple certifications depending on different roles. These are as follows:
Tableau Certified Desktop Specialist certification- This certification title does not expire, and there are no maintenance requirements.
Tableau Certified Data Analyst - This title is valid for two years.
Tableau Server Certified Associate - This title is valid for two years.
It's important to note that the above FAQs provide general information. For the most accurate and up-to-date information, it's recommended to refer to the official Tableau website or consult Tableau Learning resources.