What is the minimum number of router subinterfaces that are required for all the vlans to communicate?
A company has a small network, consisting of a single switch and a single router. The switch has been configured with two vlans, and route-on-a-stick is being configured on the router for inter-vlan routing. A trunk is configured to connect the switch to the router. What is the minimum number of router subinterfaces that are required for all the vlans to communicate?