SIP-based Call Admission Control must be configured in the Cisco WLC GUI. SIP call-snooping ports are configured. Which two actions must be completed next? (Choose two.)
A.
Set the QoS level to silver or greater for voice traffic.
B.
Configure two different QoS roles for data and voice traffic.
C.
Enable Media Session Snooping on the WLAN.
D.
Set the QoS level to platinum for voice traffic.
E.
Enable traffic shaping for the LAN interface of the WLC.
B is incorrect, we already set the QoS level to platinum for voice traffic and for this question nothing needs to be done for data traffic. The correct answers are C and D, the question literally references the call-snooping ports but you still have to enable snooping
Cisco says "2.9 Configure the components of a wireless LAN access for client connectivity using GUI only such as WLAN creation, security settings, QoS profiles, and advanced WLAN settings"
But yeah I've never seen it in my course or the OCG.
I figure since it's such a small part of the exam (literally 2%) that nobody bothers to go in depth with it? Seems like a lot of information for what may be 1-2 questions.
Configuring SIP-Based CAC (GUI)
- Ensure that you have set the voice to the platinum QoS level.
- Ensure that you have enabled call snooping for the WLAN.
- Ensure that you have enabled the Admission Control (ACM) for this radio.
Source: https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-9/config-guide/b_cg89/quality_of_service.html#sip-based-cac
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SIP (Media Session) Snooping, CAC, and Reporting
This feature enables access points to detect the establishment, termination, and failure of Session Initiation Protocol (SIP) voice calls and then report them to the controller and Cisco Prime Infrastructure.
Source: https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-9/config-guide/b_cg89/quality_of_service.html#media-session-snooping-reporting
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