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Which of the following option keys is not required in o…

Which of the following option keys is not required in order for the corresponding feature to function on a Cisco
Codec C40?

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A.
Dual display

B.
MultiSite

C.
Presentation

D.
High definition

E.
Premium resolution

Explanation:
The High definition option key is not required in order for the corresponding feature to function on a Cisco
Codec C40. The following option keys can generally be installed on devices that run Cisco TelePresence TC
software, such as the C series and EX series models:
Dual display
MultiSite
Presentation
High definition
Premium resolution
Dual-display functionality is native to the C60. The C20, C40, and EX90 all require an option key to enable full
dual-display functionality.The MultiSite option key enables systems to create ad-hoc conferences without requiring an external multipoint
control unit (MCU). Ad-hoc conferences are on-demand conferences and are limited to four simultaneous
participants.
The Presentation option key, which is sometimes called the Natural Presenter option key, enables systems to
send presentations. This key is supplied by default on new systems. The EX series models include presentation
functionality natively without an option key.
The High definition option key allows 720p definition at 30 frames per second. The C40 and C60 support this
feature natively? the C20 requires the High definition option key to support high-definition functionality.
The Premium resolution option key allows higher resolutions up to 1920 x 1080 at 60 frames per second. All C
series models require an option key to support these higher resolutions.

Cisco: Troubleshooting Guide TC 6.0: Option keys (PDF)


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