On Cisco Unified IM & Presence, which two services are essential for providing chat capabilities to the Cisco Jabber client? (Choose two.)

The Cisco Presence Engine processes and publishes presence state information such as available or away for each user, which is a fundamental requirement for establishing and displaying IM sessions in Jabber.

The Cisco SIP Proxy routes SIP-based instant messages and presence subscriptions between Jabber clients and the IM and Presence server, making it the essential transport mechanism for delivering chat messages.

Cisco TFTP delivers device configuration and firmware files to Unified CM endpoints and is not involved in IM or chat message routing on the IM and Presence server.

Cisco Tomcat is a web server service that hosts administrative and user-facing web interfaces but does not provide core chat or presence routing functionality for Jabber.

Cisco Database stores configuration and subscriber data for IM and Presence but is a supporting infrastructure service rather than a direct chat-delivery service for the Jabber client.