2.2 Implement QoS for Wireless Clients 300-430 Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   A school district's Wi-Fi network serves both teachers and students. The district wants to ensure that video streaming for educational purposes is prioritized over general internet browsing. The video streaming service is not DSCP-marked by the client. The network uses Cisco Catalyst 9800 controllers with WMM enabled. Which configuration should be used to prioritize the video streaming traffic?

   • AEnable WMM and set the WLAN to video mode, which will prioritize all video traffic.
   • BTrust the DSCP markings from the video streaming clients, assuming they will mark their traffic correctly.
   • CCreate an application-based QoS policy that matches the video streaming service and marks it with DSCP AF41, then attach the policy to the policy profile.
   • DConfigure a per-client QoS policy that gives the teachers' clients a higher bandwidth limit.
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2. 17foundation · easy

   What is the purpose of a per-client QoS policy on a wireless network?

   • ATo block all traffic from a specific client
   • BTo provide a single QoS policy for all clients on a WLAN
   • CTo prioritize traffic based on the client's MAC address only
   • DTo enforce bandwidth limits and priority for individual wireless clients
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4. 18foundation · easy

   When troubleshooting QoS issues for a wireless client, which tool can be used on a Cisco WLC to verify the DSCP markings of packets received from the client?

   • APacket capture (e.g., 'monitor capture')
   • BSNMP walk
   • CTraceroute
   • DPing
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5. 19application · medium

   A school district uses Wi-Fi for tablets and VoIP phones. The tablets are configured to mark video with DSCP AF41, but the VoIP phones do not mark RTP. The WLC is set to trust DSCP. What should the administrator do to ensure VoIP gets priority?

   • AConfigure the WLC to re-mark VoIP traffic based on the source IP address of the VoIP phones.
   • BConfigure the WLC to override DSCP for VoIP traffic based on the access point's voice queue.
   • CCreate a QoS policy that matches the VoIP phone's MAC address and assigns its traffic to the voice queue.
   • DEnable WMM and configure the WLC to trust DSCP, then rely on the VoIP phones to mark traffic.
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6. 20application · medium

   A university library provides free Wi-Fi to students. The network team wants to ensure that a single student cannot consume more than 5 Mbps of bandwidth, while still allowing VoIP softphones to work reliably. The WLC runs AireOS. What should the administrator configure?

   • AConfigure a WLAN ACL to drop all traffic above 5 Mbps per client.
   • BCreate a new QoS profile with a per-client bandwidth limit of 5 Mbps and enable WMM with voice prioritization.
   • CSet the WLC to use the 'platinum' QoS profile and rely on the access point to enforce the limit.
   • DApply a per-client bandwidth contract of 5 Mbps to the default QoS profile and enable WMM.
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