An engineer attempts to upload a server certificate to an Expressway-C server but receives an error when they click the upload button that says that the file is invalid. The engineer is advised that this happens because the certificate was signed incorrectly and is missing an attribute. What must the engineer do to upload the certificate?
To upload the server certificate successfully, the engineer needs to ensure that the certificate includes essential attributes required by the Expressway-C server for validation. Creating a new certificate template with 'Server authentication' and 'Client authentication' enabled ensures that the certificate includes the necessary client and server authentication extensions. Without these extensions, the system will reject the certificate file as invalid.
answer C https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X15-0/mra/exwy_b_mra-deployment-guide-x150.pdf
The error message that you cant even upload the certificate is the giveaway on this. The certificate must include the Client Authentication extension. The system won't let you upload a certificate without this extension. Page 24 https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X15-0/mra/exwy_b_mra-deployment-guide-x150.pdf