What is used to create a QoS solution that delivers priority to voice and video traffic across a network?

Class-Based Weighted Fair Queuing (CBWFQ) allows administrators to define custom classes of traffic and assign specific bandwidth, queue limits, and other QoS parameters to each class, ensuring preferred treatment for high-priority applications like voice and video.

Traffic shaping is used to buffer and delay packets to ensure a smooth outbound traffic flow, preventing bursts but not inherently prioritizing specific traffic types over others in a comprehensive QoS scheme.

DiffServ (Differentiated Services) is a framework for classifying and marking network traffic, but it is not a queuing mechanism itself; it works in conjunction with mechanisms like CBWFQ.

Traffic policing drops or re-marks traffic that exceeds a configured rate, enforcing limits rather than guaranteeing bandwidth or prioritizing traffic.