How can administrators perform bandwidth management on Palo Alto Networks firewalls?

Using Quality of Service (QoS) policies to prioritize traffic is the correct approach for performing bandwidth management on Palo Alto Networks firewalls. QoS utilizes specific rules and settings to manage and optimize the flow of network traffic, allowing administrators to classify traffic into different categories based on criteria such as application type, user, or source/destination IP address. Through these classifications, administrators can assign different priority levels to each category, ensuring that critical applications and services receive the necessary bandwidth even during high traffic periods.

This mechanism helps to reduce latency and ensure a consistent quality of service for important applications, enhancing overall network performance and user experience. Furthermore, Palo Alto Networks firewalls provide the flexibility to create these policies tailored to specific business needs, which can dynamically adapt to network demands and variations.

Other options presented may mention aspects of bandwidth control but do not directly align with the structured approach offered by QoS. For instance, configuring VLANs involves managing broadcast traffic segregations rather than traffic prioritization, while limiting bandwidth universally would not discriminate between essential and non-essential traffic, potentially leading to performance issues. Setting maximum throughput limits for applications could be relevant in certain contexts but lacks the nuanced traffic prioritization that QoS offers, which is crucial for maintaining service levels across diverse applications