Your question is Telnet Connection Command. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
What command would you use to establish a telnet connection to port 10100?
Provide the command using a hostname or IP address, explain what a successful connection proves, and note one security limitation of Telnet. Keep the response focused on basic TCP connectivity testing.