Exam 350-801 topic 1 question 229 discussion

C. and D. are incorrect. B. is incorrect, CIR is the average rate calculated in Bc/Tc, if the traffic were constant, so you can not exceed the rate. A. is correct, you can to burst to the Be size if you have enough tokens in the bucket (this is, there is available bandwidth), but it does not mean you exceed CIR. Yo can send the burst you want each Tc, even exceed to Be, but you do not must exceed the average Bc/Tc (the CIR). Reference: Implementing Cisco Unified Communications Voice over IP and QoS (CVOICE) Foundation Learning Guide Fourth Edition. Chapter 8: Configuring QoS Mechanisms

As far As I understood, A is correct: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_plcshp/configuration/15-mt/qos-plcshp-15-mt-book/qos-plcshp-oview.html Rate limits define which packets conform to or exceed the defined rate based on the following three parameters: • Average rate. The average rate determines the long-term average transmission rate. Traffic that falls under this rate will always conform. • Normal burst size. The normal burst size determines how large traffic bursts can be before some traffic exceeds the rate limit. • Excess Burst size. The Excess Burst (Be) size determines how large traffic bursts can be before all traffic exceeds the rate limit. Traffic that falls between the normal burst size and the Excess Burst size exceeds the rate limit with a probability that increases as the burst size increases.

Everyone agrees A is correct? Im not quite sure..