210-065 · Question #347
Which effect of the CLI set audio aec enable command on the immersive Cisco Telepresence system is true?
The correct answer is A. Echo cancellation is enabled. The CLI command 'set audio aec enable' on a Cisco TelePresence immersive system enables Acoustic Echo Cancellation, which prevents audio feedback loops in a conference room.
Question
Which effect of the CLI set audio aec enable command on the immersive Cisco Telepresence system is true?
Options
- AEcho cancellation is enabled.
- BCall economy quality feature is enabled.
- CNoise cancellation is enabled.
- DAEC audio codec is enabled.
How the community answered
(47 responses)- A91% (43)
- B2% (1)
- C2% (1)
- D4% (2)
Why each option
The CLI command 'set audio aec enable' on a Cisco TelePresence immersive system enables Acoustic Echo Cancellation, which prevents audio feedback loops in a conference room.
AEC stands for Acoustic Echo Cancellation, a signal processing feature that eliminates the echo caused by audio from speakers being picked up by microphones in the same room. Enabling it via 'set audio aec enable' activates this DSP function on the Cisco TelePresence system, which is critical for clear audio in immersive telepresence environments.
There is no feature called 'call economy quality' associated with the AEC acronym or this CLI command.
Noise cancellation is a separate audio processing feature and would be controlled by a different CLI command, not 'set audio aec enable'.
AEC is not an audio codec - it is a signal processing algorithm, and no codec named AEC exists in Cisco TelePresence audio configurations.
Concept tested: Cisco TelePresence acoustic echo cancellation CLI configuration
Source: https://www.cisco.com/c/en/us/td/docs/telepresence/endpoint/codec/c_series/7x/user_guide/Cisco_Telepresence_System_Codec_C_Series_Administrator_Guide_TC7x.html
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