That document is from CME. Since the question is asking about the naming format from UCM, the answer is D. .cnf is only used on older phone models as far as i am aware.

Selected Answer: D I'm checking the status messages of my Cisco 8851 phone right now. It's registered and got its configuration file as SEPA4B239B7EF9C.cnf.xml - It's registered on CUCM version 12.5. The answer is D.

Selected Answer: B https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucme/admin/configuration/manual/cmeadm/cmefiles.html The hunt algorithm looks for files in this order: CTLSEP <mac> file for a SCCP phone—For example, CTLSEP003094C25D2E.tlv SEP <mac> file for a SCCP phone—For example, SEP003094C25D2E.cnf.xml SIP <mac> file for a SIP phone—For example, SIP003094C25D2E.cnf or gk003069C25D2E XML default file for SCCP phones—For example, SEPDefault.cnf.xmls XML default file for SIP phones—For example, SIPDefault.cnf

–Phone-specific configuration file ( SIPXXXXYYYYZZZZ.cnf) XXXXYYYYZZZZ is the MAC address of the phone

Selected Answer: D The configuration file a SIP phone downloads from the Cisco Unified Communications Manager (UCM) uses the naming format SEP<mac-address>.cnf.xml. For the SIP phone with the MAC address 0030 96D2 D5CB, the configuration file would be named: SEP003096D2D5CB.cnf.xml ---- D

Selected Answer: D I'm looking at a file from my CM right now...It's D.... If you choose B then sign up for a dcloud demo and see it for yourself...