If a tester is attempting to ping a target that exists but receives no response or a response that states the destination is unreachable, ICMP may be disabled and the network may be using TCP. Which o

Hping is a versatile packet generator that supports TCP, UDP, and ICMP protocols, allowing a tester to send TCP SYN or ACK packets to a target host to elicit a response when ICMP is filtered or disabled. By crafting TCP packets to open ports, hping can confirm host availability even in environments where ping is blocked by firewall rules or host configuration.

Traceroute primarily uses ICMP (or UDP on Linux) to map network paths and would face the same blocking issue as ping when ICMP is disabled.

TCP ping is a general concept or feature found in some tools, not a standalone tool the tester would invoke - hping is the specific tool that implements this capability.

Broadcast ping sends ICMP echo requests to a broadcast address and still relies on ICMP, which the scenario states may be disabled.