Configuring Transparent Data Encryption (TDE) on the database used by Tableau Server Configuring Transparent Data Encryption (TDE) on the database used by Tableau Server is essential for encrypting data at rest. TDE ensures that the data stored in the database is encrypted, which protects it from unauthorized access or breaches, especially if the physical storage media is compromised. Option A is incorrect as SSL encryption protects data in transit and does not encrypt data at rest in the database. Option C is incorrect because while a firewall is crucial for net-work security, it does not encrypt data stored in the database. Option D is incorrect as regularly changing passwords, while a good security practice, does not directly relate to the encryption of da-ta at rest in the database.