Comprehensive and Detailed 100 to 150 words of Explanation From Zscaler Digital Transformation Administrator topics:

SAML auto-provisioning is the best answer among the listed methods. When a user authenticates, ZIA can use attributes in the SAML assertion to create the user and populate associated group and department information automatically. This avoids maintaining a separate hosted user database and eliminates the direct LDAP connectivity required by traditional directory synchronization. Kerberos is primarily an authentication mechanism and does not provide the required cloud user-provisioning workflow. LDAP synchronization and Zscaler Authentication Bridge can provision directory information, but they require additional infrastructure and directory integration. Zscaler documents that SAML auto-provisioning enables the service to retrieve user, group, and department information during SAML authentication. For the choices presented, it supplies the most direct and secure cloud-oriented provisioning method.

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