Question 190
During a controlled ZIA, ZPA, or ZDX administration check, engineers discover: Managed endpoints authenticate successfully, but Z-Tunnel creation fails after a host firewall change blocks the necessary outbound transport. Which finding best supports successful resolution?
Explanation
Correct Answer
This specifically validates z-tunnel network reachability on local firewall: The tunnel establishes from a controlled endpoint and relevant Internet traffic reaches ZIA inspection without broad firewall exemptions. The corresponding remediation is: Review supported Client Connector tunnel diagnostics and permit only the documented outbound transport in the endpoint firewall policy. An outcome from a different workflow does not prove this requirement.
Incorrect Answers
Authorized test users reconnect to the application through a healthy connector without permitting public inbound access. This is a different failure mechanism from the current case, which concerns the tunnel establishes from a controlled endpoint and relevant Internet traffic reaches ZIA inspection without broad firewall exemptions.
This option instead describes the device transitions from captive-only connectivity to the intended inspected internet and private-app paths after sign-in. Testing that independent mechanism would not show whether the reported fault has been resolved.
An approved test user signs in with valid current federation settings and receives their expected protected profile. The stem describes managed endpoints authenticate successfully, but Z-Tunnel creation fails after a host firewall change blocks the necessary outbound transport, so this explanation does not account for the observations.