18.8. Answers to Review Questions
A, B, C. Bandwidth, delay, and packet loss are the three biggest problems on a network that QoS can help to fix.
B. Upgrading the link will solve problems with lack of bandwidth and congestion, but costs the most.
D. Assessing the network is required so that you know what traffic you have and how much. A policy cannot be made until you know that information.
B. NBAR collects data on an interface, per direction, per protocol, and gives the statistics for what it finds.
C. DiffServ allows for the classification of traffic to make decisions through the network. This allows a large amount of data to flow.
D. RSVP is used to signal the network so that guarantees of service can be made for traffic flows.
B. CoS is the marking ...
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