An enterprise has moved most services to the cloud, including email applications and real-time communication. Which feature must be enabled on the wireless network to improve the user experience?
Most services are in the cloud. This may be important information, users and services are separated by WAN (no QOS, best effort only) so enabling QOS only on WiFi part of data path may not improve user experience as fast roaming does. Vote B
“The primary goal of QoS is to provide priority including dedicated bandwidth, controlled jitter and latency (required by some real-time and interactive traffic), and improved loss characteristics.”
https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-5/config-guide/b_cg85/quality_of_service.html#qos
Fast secure roaming is particularly useful for maintaining connectivity but doesn’t address prioritization of traffic types.
Really bad question. Depends where is the Internet breakout. Internet = no QOS, useless to set that if direct access to internet on LAN. If not - traffic over wan - might then help
Stuck between B and C here, but I'm going with B ultimately because I think the key here is "moved most services to the cloud"...meaning out on the Internet. QoS markings cannot be honored out on the Internet, as MoD82 alluded to, so the markings get dropped once the packets leave your private WAN. Alternatively, a fast roaming handoff will improve the wireless experience. A tricky one from Cisco, but I think the best choice here is B.
QoS is configured at the WLAN (SSID).
Of course it helps when you have a WLAN for voice QoS and a separate VLAN for data (best effort), but QoS is not something that you 'enable' at the wireless network.
Roaming can be tricky for real-time communication when no fast secure roaming amendments have been configured.
For that reason I opt for answer B
yeah I think is QoS, you can fast roaming but if your applications like video/audio its giving delays or interruptions even if you are not roaming, then means the AV traffic is being combined with normal traffic. QoS is for me.
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