In the following figure, if you do a traceroute on Router A to a destination of 192.168.3.50, how many hops will show?

If a traceroute is performed to 192.168.3.50 on Router A, it will show one hop. This is because the 192.168.3.0 network is on the other side of the tunnel interface, which is one hop away. All of the other options are incorrect.