QoS Traffic Shaping

B.

QoS (Quality of Service) traffic shaping is a technique used to manage network traffic by controlling the flow of data packets based on specific criteria, such as the type of traffic, source or destination address, or priority level. Its primary purpose is to prevent network congestion, which can occur when too much data is being transmitted at once, causing delays and packet loss.

The correct answer to the question is B. QoS traffic shaping buffers and queues packets above the committed rate, meaning that packets are temporarily stored in a buffer until they can be sent out on the network without causing congestion. This technique helps to smooth out bursts of traffic and prevent network congestion by ensuring that packets are transmitted at a steady rate.

When a network experiences congestion, packets can be dropped or delayed, leading to poor network performance and potentially causing data loss. QoS traffic shaping helps to prevent these issues by controlling the flow of traffic, ensuring that critical packets are prioritized and delivered first, while less important traffic is queued or dropped if necessary.

QoS traffic shaping works by setting specific bandwidth limits for different types of traffic, such as voice or video, and prioritizing traffic based on its importance. When traffic exceeds the set limit, packets are buffered and queued until there is available bandwidth to transmit them. This helps to prevent congestion by ensuring that the network is not overwhelmed with too much traffic at once.

In summary, QoS traffic shaping is an essential tool for network administrators to manage network traffic and prevent congestion. By buffering and queuing packets above the committed rate, it helps to smooth out bursts of traffic and ensure that packets are transmitted at a steady rate, improving network performance and preventing data loss.