Which two Cisco IOS multipoint video conferencing profiles are supported on the Cisco Integrated
Router Generation 2 with packet voice and video digital signal processor 3? (Choose two.)

A.
homogeneous

B.
rendezvous

C.
guaranteed-audio

D.
scheduled

E.
guaranteed-video

F.
ad-hoc

Explanation:
Q) What video conferences are supported?
A)
Three types of video profiles are supported: homogeneous conferences (video switching),
heterogeneous conferences (video mixing), and guaranteed audio conferences (best-effort video).
http://www.cisco.com/c/en/us/products/collateral/unified-communications/voicevideo-conferencing-isr-routers/qa_c67-649850.html