Which two components are needed before a user can be assigned to a Presence node? (Choose two.)

A Cisco Unified Communications Service of type 'IM and Presence' must be created and configured with the Presence node address so that CUCM knows the specific node endpoint that will handle the user's presence and instant messaging traffic.

A Service Profile bundles one or more UC Services together and is the object actually assigned to the end user, making it the required link that connects the user account to the configured Presence node.

A phone button template defines the physical line and feature button layout on a Cisco IP phone and has no relationship to Presence node assignment.

A mobility profile configures Cisco Unified Mobility features such as Single Number Reach and is not involved in enabling or assigning Presence services.

A device profile stores a user's phone settings for Extension Mobility and is not a prerequisite for assigning a user to a Presence node.