300-365 · Question #34
A network engineer must ensure that corporate wireless users have a better experience than guest wireless users. Which two configurations fulfil requirement? (Choose two.)
The correct answer is B. Modify the corporate WLAN to the Platinum QoS policy. E. Change the guest WLAN to the Bronze QoS policy. Cisco WLC WLAN QoS policies (Platinum through Bronze) control traffic priority, and assigning Platinum to the corporate WLAN and Bronze to the guest WLAN is the correct way to guarantee corporate users a better experience.
Question
A network engineer must ensure that corporate wireless users have a better experience than guest wireless users. Which two configurations fulfil requirement? (Choose two.)
Options
- AOverride per-SSID bandwidth contracts on the corporate WLAN to reserve bandwidth.
- BModify the corporate WLAN to the Platinum QoS policy.
- CEnable 802.1ptag on the Gold QoS pofccyto honor prioritized traffic.
- DAdjust the guest WLAN radio policy to 802.11 b/g only.
- EChange the guest WLAN to the Bronze QoS policy.
How the community answered
(58 responses)- A9% (5)
- B84% (49)
- C3% (2)
- D3% (2)
Why each option
Cisco WLC WLAN QoS policies (Platinum through Bronze) control traffic priority, and assigning Platinum to the corporate WLAN and Bronze to the guest WLAN is the correct way to guarantee corporate users a better experience.
Per-SSID bandwidth contract overrides enforce throughput caps on a WLAN but do not establish queue-based traffic prioritization, which is the mechanism needed to guarantee a better experience for corporate users.
Setting the corporate WLAN to the Platinum QoS policy places all corporate wireless traffic into the highest-priority queue on the WLC. This ensures corporate frames are scheduled and serviced before traffic on WLANs assigned lower-tier QoS policies.
Enabling 802.1p tagging on the Gold QoS policy affects how tagged frames are honored by downstream wired infrastructure, but it does not configure the priority difference between the corporate and guest WLANs on the controller.
Restricting the guest WLAN radio policy to 802.11 b/g only lowers the maximum guest data rate but does not implement QoS-based prioritization to guarantee corporate users a superior experience.
Setting the guest WLAN to the Bronze QoS policy assigns the lowest available priority to guest traffic. This prevents guest sessions from competing equally with corporate sessions for airtime and bandwidth, directly fulfilling the differentiation requirement.
Concept tested: Cisco WLC WLAN QoS policy priority differentiation
Source: https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-5/config-guide/b_cg85/wlan_qos.html
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