An engineer is attempting to resolve an issue with slow traffic. Which PAN-OS feature can be used to prioritize certain network traffic?

Prisma Access for Mobile Users is a cloud-based security platform that extends enterprise security to mobile users, and it does not directly provide a feature to prioritize traffic on a PAN-OS firewall.

Forward Error Correction (FEC) is a data transmission technique used to detect and correct errors in data without retransmission, typically employed in SD-WAN for link resilience, not for traffic prioritization.

A SaaS Quality Profile in PAN-OS is used to monitor the performance and health of SaaS applications, which might inform QoS decisions but is not the mechanism for traffic prioritization itself.

Quality of Service (QoS) is a PAN-OS feature that allows administrators to prioritize critical applications or services, allocate bandwidth, and manage latency and jitter for different types of network traffic, thereby mitigating slow traffic issues. By classifying, marking, and policing traffic, QoS ensures that high-priority applications receive preferential treatment during network congestion.