https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/finesse/finesse_1151/Admin/guide/CFIN_BK_C0CD262D_00_cisco-finesse-administration-guide-1151/CFIN_BK_C0CD262D_00_cisco-finesse-administration-guide-1151_chapter_01001.pdf When the HTTPS protocol is used to access the administration console or agent desktop in Cisco Finesse, the primary and secondary servers accept only digital certificates that are issued by a certificate authority (CA).
A digital certificate is an electronic document that uses a digital signature to bind a public key with an identity, such as the name of a person or an organization, and the certificate is issued by a trusted third party, such as a certificate authority (CA). The digital certificate confirms the identity of the server and enables secure communication between the client and the server.
A certificate authority (CA) certificate is a type of digital certificate that is issued by a trusted third party, such as a certificate authority (CA), to verify the identity of an entity and establish trust.
References:
https://www.cisco.com/c/en/us/support/docs/voice-unified-communications/finesse/118248-configure-certificates-finesse-00.html
https://www.globalsign.com/en/ssl-information-center/what-is-a-digital-certificate/

Two types of upgrades available for CCE are Technology Refresh and Standard. Technology Refresh upgrades replace outdated hardware and software components with the latest versions, while Standard upgrades include features and bug fixes.

The sync that is triggered when an administrator performs any create, update, or delete operation on a specific configuration item is Push. Push is a synchronization method that allows administrators to trigger synchronization of changes to a specific configuration item, such as a device or service, and to any related configuration items. Push synchronization is triggered immediately, and can be used to quickly synchronize all changes to a specific configuration item.
References: [1] https://www.cisco.com/c/en/us/td/docs/net_mgmt/network_automation_and_programmability/one_plus/b_one_plus_getting_started/b_one_plus_getting_started_chapter_01.html [2] https://www.cisco.com/c/en/us/td/docs/net_mgmt/smart_software_manager/one/2-2/user_guide/b_one_user_guide_22/b_one_user_guide_22_chapter_01.html

The telephony deployment between a TDM trunk and a VOIP is a voice gateway (VGW). A voice gateway is a hardware or software device that acts as a bridge between a TDM trunk and a VOIP network. It allows TDM and VOIP calls to be connected and terminated, and can also provide additional features such as call routing, call forwarding, call waiting, and call recording. CUCM, CUBE, and CUSP are not involved in this type of deployment.