GCP Professional Cloud Architect Practice Question

Google Cloud first selects the route with the most specific prefix. Because both routes advertise 172.20.0.0/16, prefix length ties. The next tiebreaker is the numeric priority, where lower numbers win. The existing static route's priority of 900 beats the dynamic VPN route's 1000, so packets are sent to the firewall VM. Raising the static route's priority to a value higher than 1000 (for example, 1100) causes the VPN route (still 1000) to become preferred, sending traffic through the tunnel. Deleting subnet routes or disabling advertisements would remove desired reachability, and creating a separate /24 static route adds unnecessary operational overhead. Converting the dynamic route to static does not change priority ordering. Adjusting the static route's priority-by deleting and recreating it-solves the problem while leaving the firewall VM untouched.