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220-1201 · Question #191
220-1201 Question #191: Real Exam Question with Answer & Explanation
The correct answer is B: 23. Port 23 is used by Telnet, an unencrypted remote connection protocol that poses significant security risks. Disabling Telnet and using secure alternatives like SSH (port 22) is best practice.
Submitted by viktor_hu· Mar 30, 2026
Question
Which of the following ports should a technician disable to increase the security of remote connectivity?
Options
- A22
- B23
- C25
- D53
Explanation
Port 23 is used by Telnet, an unencrypted remote connection protocol that poses significant security risks. Disabling Telnet and using secure alternatives like SSH (port 22) is best practice.
Topics
#Telnet security#Remote access security#Port security#Insecure protocols
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