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SK0-005 · Question #497

An administrator is working on improving the security of a new domain controller. A report indicates several open ports on the server. Which of the following ports should the administrator disable?

The correct answer is D. 3389. The port that should be disabled on the firewall is port 3389. Port 3389 is used by Remote Desktop Protocol (RDP), which is a protocol that allows remote access and control of a Windows system through a graphical user interface. RDP can pose a security risk if it is not…

Security and disaster recovery

Question

An administrator is working on improving the security of a new domain controller. A report indicates several open ports on the server. Which of the following ports should the administrator disable?

Options

  • A135
  • B636
  • C3268
  • D3389

How the community answered

(64 responses)
  • A
    2% (1)
  • B
    3% (2)
  • C
    2% (1)
  • D
    94% (60)

Explanation

The port that should be disabled on the firewall is port 3389. Port 3389 is used by Remote Desktop Protocol (RDP), which is a protocol that allows remote access and control of a Windows system through a graphical user interface. RDP can pose a security risk if it is not properly configured or secured, as it can expose the system to unauthorized or malicious access from external sources. Therefore, port 3389 should be disabled on the firewall unless it is needed for legitimate purposes.

Topics

#Port security#Domain controller hardening#Network security#RDP security

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