Which protocol or diagnostic tool helps you determine how many hops away a network is and can be exploited by an attacker?

The protocol or diagnostic tool that helps determine how many hops away a network is and can be exploited by an attacker is traceroute. Traceroute is a network diagnostic tool used to track the pathway that a packet of information takes from its source to its destination. It reports the IP addresses of all the routers it passes through until it reaches its destination, or fails to and is discarded. Each router represents a hop in the journey of the packet. Traceroute can be exploited by an attacker to gather information about network topology and the presence of routers and firewalls.