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Exam 300-430 topic 1 question 78 discussion

Actual exam question from Cisco's 300-430
Question #: 78
Topic #: 1
[All 300-430 Questions]

A company has a single WLAN configured for 802.1x authentication with the QoS set to Silver. This WLAN supports all corporate and BYOD access. A decision has been made to allow users to install Cisco Jabber on their personal mobile devices. Users report poor voice quality when using Jabber. QoS is being applied only as best effort. What must be configured to ensure that the WLAN remains on the Silver class and to ensure Platinum class for Jabber?

  • A. Configure QoS on the mobile devices that have Jabber installed.
  • B. Enable Cisco Centralized Key Management on the WLAN so that the Jabber-enabled devices will connect.
  • C. Configure the WLAN to broadcast on 5 GHz radios only and allow Jabber users to connect.
  • D. Configure an AVC profile for the Jabber traffic and apply it to the WLAN.
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Suggested Answer: D 🗳️
by kthekillerc at Oct. 22, 2021, 4:44 p.m.

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rrahim
2 months, 1 week ago
Selected Answer: D
Since the WLAN is set to Silver QoS, all traffic—including Cisco Jabber—is treated as best effort, leading to poor voice quality. To ensure Cisco Jabber receives Platinum QoS (voice priority) while keeping the WLAN at Silver, an Application Visibility and Control (AVC) profile must be used. Application Visibility and Control (AVC) allows the controller to identify and classify Jabber traffic separately from other traffic on the WLAN. Applying an AVC profile with the correct DSCP marking (e.g., EF - Expedited Forwarding) ensures Jabber traffic is prioritized without changing the overall WLAN QoS class. This method ensures voice traffic gets Platinum QoS while keeping all other traffic at Silver.
upvoted 1 times
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Ocsicccnp
7 months ago
Selected Answer: D
d
upvoted 1 times
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kthekillerc
3 years, 6 months ago
Provided answer is correct
upvoted 2 times
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