An Nmap scan of a network switch reveals the following: Which of the following technical controls will most likely be the FIRST recommendation for this device?
B - System-Hardening Techniques. We have seen that the port 23 for telnet is open. This means credentials are sent in plain text. Disabling this telnet service which is not a necessary service to allow running since the ssh service on port 22 for remote connection is on can be part of system hardening.
I really dont like how vague the term "system hardening" is without telling us what the method of hardening that would be used specifically is. But if, in this case system hardening includes disabling telnet, then yes.
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