Cisco UCM QoS Settings and Configuration
An engineer must help a customer’s administrator to set QoS options for the cluster. What are two QoS settings on the Cisco UCM server? (Choose two.)
Community Votes
75% of anonymous learners picked answer AD. Votes are pick records left by other test-takers — they are not the verified answer.
Community Insight
The exam tests the distinction between audio/video DSCP values and the correct location for cluster-wide QoS configuration, often trapping candidates who confuse Service Parameters with Enterprise Parameters or assume default static tagging without verification.
This question tests knowledge of Quality of Service (QoS) configuration in Cisco Unified Communications Manager, specifically regarding DSCP tagging for media streams. The community consensus confirms that administrators can set distinct DSCP values for different video call types and configure these settings via Clusterwide Service Parameters.
Candidates often select Option B because they recall that voice is typically marked AF41 (DSCP 34) or EF (DSCP 46), but incorrectly assume video audio portions share the same high-priority marking as pure voice, or they miss the nuance in Option A regarding separate video call types.
Community Discussion (3 comments)
Comments & Corrections
No comments yet — spotted an error or have a note? Share it below.
Expert Analysis
Why the Answer Is Correct
Option A is correct because CUCM allows granular control over DSCP markings for 'video calls', 'audio portion of video calls', and 'immediate video calls' separately within the Service Parameters. Option D is correct because QoS parameters are indeed configured under the Cisco CallManager Service Parameters section, which applies cluster-wide.Why the Other Options Are Wrong
Option B is incorrect because while voice is typically marked EF (46), the audio portion of video calls is often marked differently (commonly AF41/34) to distinguish it from pure voice; assuming they are both 46 is a simplification error. Option C is incorrect because CUCM does not force all video types to the same value if granular settings are enabled; it supports differentiation. Note: Some comments refer to an Option E which likely corresponds to the text in D or a missing option in the provided list, but based on standard CUCM behavior, the Service Parameter location is key.Community Comment Notes
Comment [2] provides critical clarification that Option B is not advisable due to DiffServ standards distinguishing video audio from voice. Comments [1] and [3] highlight a discrepancy in the question's labeling, noting that the correct configuration option might be mislabeled as 'D' instead of 'E' in some versions, but agree that the Service Parameters location is the deciding factor for the second correct choice.Official Reference
Exam Strategy
Always verify where parameters are configured (Service vs. Enterprise Parameters). For QoS questions, remember that voice is usually EF (46) and video/audio is often AF41 (34), unless specific granular overrides are mentioned.