Final answer:
The indication that would be applicable if there are suspicious tools or exploits and unpredicted open ports is the presence of hacking attempts or unauthorized access.
Step-by-step explanation:
The indication that would be applicable if there are suspicious tools or exploits and unpredicted open ports is the presence of hacking attempts or unauthorized access. In the context of computer security, suspicious tools or exploits and open ports can be signs of hackers trying to gain unauthorized access to a system or network. Hackers often use tools or exploits to exploit vulnerabilities in software or hardware, and they may also try to gain access by opening unexpected or unauthorized network ports.