Which of the following is MOST appropriate for enforcing bandwidth limits when the performance of an application is not affected by the use of buffering but is heavily impacted by packet drops?
Which of the following is MOST appropriate for enforcing bandwidth limits when the performance of an application is not affected by the use of buffering but is heavily impacted by packet drops?
Traffic shaping is most appropriate for enforcing bandwidth limits when the performance of an application is not affected by the use of buffering but is heavily impacted by packet drops. Traffic shaping manages excess traffic by buffering and delaying packets, smoothing out traffic bursts and avoiding packet drops. In contrast, traffic policing directly discards packets that exceed the predefined rate, which would negatively impact the application since it is highly sensitive to packet loss.
The answer is definitely A, see below, or tldr policing = dropped packets, shaping = buffering, the question says to avoid drops and buffering is ok so shaping is correct Anthony Sequeira "Instead of making a minimum amount of bandwidth available for specific traffic types, you might want to limit available bandwidth. Both traffic policing and traffic shaping tools can accomplish this objective. Collectively, these tools are called traffic conditioners. Policing can be used in either the inbound or the outbound direction, and it typically discards packets that exceed the configured rate limit, which you can think of as a speed limit for specific traffic types. Because policing drops packets, resulting in re-transmissions, it is recommended for higher-speed interfaces. Shaping buffers (and therefore delays) traffic exceeding a configured rate. Therefore, shaping is recommended for slower-speed interfaces."
This is NOT a correct answer. Unless you want to fail an exam go with A)
Based on the question's wording I would assume that "heavily impacted" means you want to avoid something that would drop packets. Traffic shaping fits in that case as it doesn't drop the excess packets while traffic policing does.
Don't listen to this guy, he either doesn't understand questions or is just trolling. The third option is that he is asking chatGPT in some weird way that gives him wrong answers ;)
The question literally tells you that the system is not negatively impacted by buffering (shaping) but is by dropped packets (policing) and you’re telling people they are wrong by not picking the option that will negatively affect the system? People need to just stop listening to you.
Unless I misunderstood you and you meant A was correct and didn’t mean to respond to Leo.. Then you are correct!
Traffic policing is the correct concept according to: https://www.cisco.com/c/en/us/support/docs/quality-of-service-qos/qos-policing/19645-policevsshape.html however, is not on the Exam Objectives...
https://www.cisco.com/c/en/us/support/docs/quality-of-service-qos/qos-policing/19645-policevsshape.html Policing Versus Shaping Traffic policing propagates bursts. When the traffic rate reaches the configured maximum rate, excess traffic is dropped (or remarked). The result is an output rate that appears as a saw-tooth with crests and troughs. In contrast to policing, traffic shaping retains excess packets in a queue and then schedules the excess for later transmission over increments of time. The result of traffic shaping is a smoothed packet output rate.
▪ Policing ● Typically discards packets that exceed a configured rate limit (speed limit) ● Dropped packets result in retransmissions ● Recommended for higher-speed interfaces ▪ Shaping ● Buffers (delays) traffic exceeding configured rate
Policing is dropping packets and shaping is buffering. Since the question tells you policing (packet drop) will negatively affect the system and shaping (buffering) will not, the answer is A.
why are people saying it's A? the question literally states that the traffic is not buffering, surely it's B
Traffic policing drops, Traffic shaping buffers. So the right answer is Traffic shaping
traffic policing - drops - recommended for fast interfaces. traffic shaping - buffers - recommended for slow interfaces.
Traffic policing is a method that allows network administrators to limit the rate of traffic being sent into a network and discard any traffic that exceeds the rate limit, which can help prevent packet drops.
https://www.cisco.com/c/en/us/support/docs/quality-of-service-qos/qos-policing/19645-policevsshape.html
Application is affected by packet drops, therefore a good way to do limitations is to make the application have to drop packets until it is using the appropriate bandwidth traffic. Traffic policing directly discards the packets whose rate is greater than the traffic policing rate. Traffic shaping, however, buffers the packets whose rate is greater than the traffic shaping rate. https://support.huawei.com/enterprise/en/doc/EDOC1000018101/b66c6d78/overview-of-traffic-policing-and-traffic-shaping
The performance of the application is not affected by the use of buffering. The performance of the application is heavily impacted by packet drops. The question asks for the most appropriate bandwidth limit enforcement in this scenario. That means you would prefer the option that would not affect performance. Traffic shaping uses buffering. Answer is A.
Traffic policing and traffic shaping have the following differences: Traffic policing directly discards packets with rates that are greater than the traffic policing rate. Traffic shaping, however, buffers packets with rates that are greater than the traffic shaping rate and sends the buffered packets at an even rate.
it is A
correct answer is A
A is the one
Traffic shaping is a technique that queues traffic and buffers it to regulate the flow of traffic and prevent congestion in the network. By controlling the rate of traffic flow, traffic shaping can ensure that bandwidth is distributed evenly across all users or applications, and that no one user or application monopolizes the available bandwidth.
The most appropriate option for enforcing bandwidth limits when the performance of an application is not affected by the use of buffering but is heavily impacted by packet drops is traffic shaping (option A). Traffic shaping involves delaying packets to bring them into compliance with a desired traffic profile, thereby preventing the network from becoming congested. This technique is useful in situations where the network capacity is insufficient to handle all traffic flows simultaneously, and it ensures that high-priority traffic is transmitted first. On the other hand, traffic policing (option B) is a technique that drops packets when traffic exceeds a configured limit, and it is appropriate when traffic needs to be strictly limited to a specific bandwidth. This technique is not suitable in situations where the application performance is heavily impacted by packet drops.