350-801 Question #460: Real Exam Question with Answer & Explanation

Question

Which DSCP service parameter is configured for Cisco TS endpoints and Cisco Communication Manager endpoints?

Options

• ADSCP for audio portion of video calls
• BDSCP for audio calls
• CDSCP for audio portion of Cisco Telepresence calls
• DDSCP for video calls

Explanation

The DSCP service parameter configured for Cisco TelePresence (TS) endpoints and Cisco Unified Communications Manager (UCM) endpoints for voice communication is "DSCP for audio calls."

Common mistakes.

• A. "DSCP for audio portion of video calls" is a more specific parameter for the audio component embedded within a video stream, not for general standalone audio calls from these endpoints.
• C. "DSCP for audio portion of Cisco Telepresence calls" is a more specific variant of option A, and "DSCP for audio calls" is the broader, more encompassing parameter for all audio calls from these endpoints.
• D. "DSCP for video calls" specifically refers to the video component of a call, not the audio, and these endpoints also handle pure audio calls.

Concept tested. Cisco UCM QoS DSCP for audio

Reference. https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/service/12_5_1/parameters/cucm_b_service-parameters-guide-1251/cucm_b_service-parameters-guide-1251_chapter_010.html

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