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Extra info for ActualTests Quality Of Service QOS 642642
Answer: D Explanation: WFQ solves the problem of low-bandwidth traffic starvation. This is fair protocol and gives same bandwidth to all queues. For example if in queue 1 the packets are 100 kb each and in queues 2300kb each than 3 packets from queue 1 will go through the interface than 1 packet from queue 2 and so on. QUESTION 96: Under which circumstances will Cisco IOS bypass the transmit software queue on an interface and place the packet directly into the hardware queue? com - The Power of Knowing 642-642 A.
The scheduling, however, is completely different. CQ uses up to 16 queues that can be used for user-defined classes. The classification options are identical to those of Priority Queuing. The scheduling mechanism uses the round-robin service where each queue is allowed to forward a certain number of bytes (not packets). Tail-drop is still used within each individual queue. com - The Power of Knowing 642-642 class bulk-ftp police cir percent 20 pir percent 40 conform-action set-dscp-transmit af11 exceed-action set-dscp-transmit 0 violate-action drop Based on the configuration, which two of the following statements are true?
D. The command configures a port to trust the incoming CoS and to generate the internal DSCP based on the incoming DSCP. The internal DSCP will then determine the egress DSCP. E. The command configures a port to trust the incoming CoS and bypass the CoS-to-DSCP maps for generating the internal DSCP. F. The command configures a port to trust the incoming CoS and bypass the DSCP-to-CoS maps for generating the egress CoS. Answer: A Explanation: When the switch is in pass-through mode, it uses the CoS value of incoming packets without modifying the DSCP value and sends the packets from one of the four egress queues.