How does ZTunnel - Route-Based mode manage traffic routing?

ZTunnel in Route-Based mode manages traffic routing by adding route table entries. This method enables the ZTunnel to direct traffic based on the specific routes defined in the routing table. In this mode, the traffic destined for certain IP addresses or ranges can be routed through the Zscaler service without needing a full tunnel for all traffic. By leveraging the existing route tables in the operating systems, ZTunnel effectively determines how to handle traffic, ensuring that it is sent to the appropriate destination based on configured rules.

The other options, while related to various networking concepts, do not accurately describe how ZTunnel functions in this context. Creating firewall rules is more about controlling access rather than managing routing directly. Using a VPN client is a broader term that can involve encapsulating traffic, but it does not specifically address the route-based routing mechanism of ZTunnel. Configuring DNS settings pertains to name resolution and does not involve actual traffic routing. Therefore, the process of adding route table entries specifically aligns with how ZTunnel in Route-Based mode directs traffic, making it the correct answer.