ZDTA Exam Dumps : Zscaler Digital Transformation Administrator

Zscaler Advanced Firewall supports DNS Tunnel and DNS Application Control, capabilities that are not available in the Standard Firewall. This enhances detection and control of DNS-based threats and allows granular enforcement over DNS queries and responses to prevent data exfiltration and command and control activities.

URL Filtering remains the most widely deployed web filtering method, serving as the first line of defense by categorizing and controlling access to websites before any deeper inspection or cloud‑based security service takes over.

When SSL Inspection is enabled and a user accesses a private application through Zscaler, the user will see a Zscaler generated MITM (Man-In-The-Middle) Certificate on their browser session. Zscaler intercepts and decrypts SSL/TLS traffic at the Service Edge and then re-encrypts it before forwarding it to the client, presenting its own certificate to maintain the security of the connection while enabling inspection.

This allows Zscaler to inspect encrypted traffic for threats and policy enforcement transparently without exposing the original server’s certificate. The study guide clarifies this mechanism under SSL Inspection details.