Zscaler ZTCA Exam - Topic 6 Question 16 Discussion

The correct answer is A. In Zero Trust architecture, enforcement is not limited to a simple allow-or-block outcome. Zscaler's architecture model supports conditional access controls that let the user proceed while reducing exposure to risk. This is why controls such as isolation are important. Zscaler's TLS/SSL inspection reference architecture lists browser isolation among the protections enabled by traffic inspection, allowing access to proceed while isolating risky web activity from the endpoint. That matches the idea of allowing access without directly exposing the initiator to the destination's full risk.

The ''steer'' concept also fits Zero Trust control logic because traffic can be directed through the most appropriate enforcement path or protective service edge as part of policy execution. By contrast, physical quarantine is a coarse legacy-style response, time-based access does not directly reduce destination risk, and block would deny access entirely rather than allow it safely. In Zero Trust, the better outcome is to preserve business access while applying the right protective control. Therefore, the best answer is Conditionally allow with Isolate and, if needed, Steer.