An engineer is describing QoS to a client.
Which two facts apply to traffic policing? (Choose two.)
Click on the arrows to vote for the correct answer
A. B. C. D. E.AD.
Sure, I can provide a detailed explanation of the two facts that apply to traffic policing.
Traffic policing is a QoS mechanism used to control the rate of traffic that is sent or received on a network. It is typically used to limit the amount of bandwidth that certain types of traffic can consume. When traffic policing is applied, traffic that exceeds a defined rate is either dropped or marked with a lower priority.
The two facts that apply to traffic policing are:
Let's take a closer look at each of these facts.
The closer to the source that traffic policing is performed, the more efficient the process will be. This is because the policing can be done before the traffic enters the network, which saves resources and avoids unnecessary congestion. When traffic is policed close to the source, the policing can also be used to prevent a single host from monopolizing the network bandwidth.
For example, if a network administrator wants to limit the amount of bandwidth that a particular user can consume, they can use traffic policing at the user's switch port. This will ensure that any traffic that exceeds the defined rate is dropped or marked before it enters the network, which saves resources and avoids congestion.
When traffic policing is applied, traffic that exceeds the defined rate is either dropped or marked with a lower priority. This is known as "policing" because the traffic is being controlled and limited to a specific rate. When traffic is dropped, it is discarded and not sent to its destination. When traffic is marked with a lower priority, it is sent, but it is given a lower priority than other traffic on the network.
For example, if a network administrator wants to limit the amount of bandwidth that is used for streaming video, they can use traffic policing to drop any traffic that exceeds a certain rate. This will ensure that the network bandwidth is reserved for other critical applications and services.
In summary, traffic policing is a QoS mechanism used to control the rate of traffic on a network. When traffic policing is applied, traffic that exceeds the defined rate is either dropped or marked with a lower priority. Policing should be performed as close to the source as possible to ensure that the process is efficient and can prevent unnecessary congestion.