352-011 practice question 4 of 30

A DMVPN network is being deployed for 10 branch sites to connect to the central headquarters over the Internet. Each branch site connects to the internet via a 1.5 Mb/s ADSL line, and the headquarters connects to the Internet over a 100Mb/s circuit limited to 20 Mb/s by the service provider. Which QoS mechanism if any, do you recommend at the headquarters location?

Answer options

A: Rate-limiting the 100 Mb/s circuit to 20 Mb/s

B: Applying hierarchical QoS with parent policy for the overall circuit and child policy for the spokes Correct answer

C: Traffic shaping the 100 Mb/s circuit to 20 Mb/s

D: QoS is not required in this instance due to maximum traffic being received by the branches being 15 Mb/s

Correct Answer:

B. Applying hierarchical QoS with parent policy for the overall circuit and child policy for the spokes

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