How can the Cisco collaboration services layer of Cisco Collaboration Architecture help
managers to measure KPIs?

A.
The Cisco collaboration services layer delivers additional performance information to
demonstrate increased business performance.

B.
Conferencing, IP communications, telepresence, and other Cisco collaboration services
deliver additional information to show the increased business performance.

C.
The Cisco collaboration services layer is a standalone element of Cisco Collaboration
Architecture and delivers services that directly improve business KPIs.

D.
Cisco collaboration services and infrastructure layers compose Cisco Collaboration
Architecture that improves technical KPIs.