300-810 Question #309: Real Exam Question with Answer & Explanation

The correct answer is D: Verify the root certificate authority is trusted by the device.. The log indicates that certificate validation failed because the certificate is not trusted. To resolve this, the root certificate authority (CA) that issued the Cisco UCM server certificate must be installed and trusted on the device. This ensures that the Webex App can establis

Application Clients

Question

Refer to the exhibit. Webex App users report they cannot connect to Cisco UCM phone services. Which action must the administrator take to resolve the issue?

Options

ACheck network connectivity between the device and the Cisco UCM.
BConfirm that servers listed in the certificate revocation list are reachable.
CConfirm the Certificate Authority Proxy Function is active on Cisco UCM.
DVerify the root certificate authority is trusted by the device.

Explanation

The log indicates that certificate validation failed because the certificate is not trusted. To resolve this, the root certificate authority (CA) that issued the Cisco UCM server certificate must be installed and trusted on the device. This ensures that the Webex App can establish a secure TLS connection to the UCM phone services.

Topics

#Certificate Trust#Webex App Connectivity#TLS Troubleshooting#Root CA

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