Cisco
300-430 · Question #76
300-430 Question #76: Real Exam Question with Answer & Explanation
The correct answer is D: msl qos trust cos configured on the controller switch port. When you enter the mls qos trust cos command on a port, the switch uses the CoS marking on incoming packets in order to put the packet in the right queue. When the packet is resent, the switch makes the DSCP value correspond to the CoS. vowlan/116056-technote-qos-00.html#anc3
QoS on a Wireless Network
Question
An engineer wants the wireless voice traffic class of service to be used to determine the queue order for packets received, and then have the differentiated services code point set to match when it is resent to another port on the switch. Which configuration is required in the network?
Options
- APlatinum QoS configured on the WLAN
- BWMM set to required on the WLAN
- Cmsl qos trust dscp configured on the controller switch port
- Dmsl qos trust cos configured on the controller switch port
Explanation
When you enter the mls qos trust cos command on a port, the switch uses the CoS marking on incoming packets in order to put the packet in the right queue. When the packet is resent, the switch makes the DSCP value correspond to the CoS. vowlan/116056-technote-qos-00.html#anc3
Topics
#QoS#CoS#DSCP#voice traffic
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