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Question

Difficulty: MediumRemote Access Technologies and Tools

A system administrator needs to perform unattended after-hours maintenance on a remote workstation running Windows 11 Pro at a branch office. The technician successfully connects to the corporate network via VPN and verifies IP connectivity to the workstation. However, attempts to initiate a Remote Desktop Connection fail immediately. Local firewall rules allow TCP port 3389. Which of the following is the most likely cause of this connection failure?

  1. Remote Desktop is disabled in the System settings on the remote workstation.Answer
  2. B
    Windows 11 Pro edition does not support incoming Remote Desktop connections.
  3. C
    Telnet must be enabled on the remote system to authenticate the Remote Desktop session.
  4. D
    An active local user must accept a Microsoft Remote Assistance invitation before unattended RDP access is granted.

Answer

Remote Desktop is turned off by default in Windows 11 Pro System settings and must be explicitly enabled to allow incoming RDP connections.
While Windows 11 Pro includes the host component for Remote Desktop Protocol (RDP), the service is disabled by default for security. The administrator must navigate to System Settings (or System Properties) on the target device and enable Remote Desktop to accept incoming connections on TCP port 3389.

Step-by-Step Solution

1
Analyze the technical requirements and scenario parameters.
The technician is using VPN (network layer access verified) and needs unattended access over RDP (TCP port 3389 allowed in firewall) to a Windows 11 Pro system.
Eliminating network and firewall obstacles isolates the issue to OS configuration on the target machine.
2
Evaluate Windows edition capabilities and default configurations.
Windows 11 Pro supports hosting RDP incoming sessions, but the feature is disabled by default in Windows for security hardening.
Without enabling 'Allow remote connections to this computer' in System Properties/Settings, incoming RDP traffic on port 3389 is rejected by the OS service listener.
3
Select the correct root cause.
The setting permitting remote access is turned off on the target host.
Enabling Remote Desktop in System settings starts the underlying Remote Desktop Services listener.

Key Concept

Windows Remote Desktop configuration and edition capabilities
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Topics

Remote Access Technologies and Tools

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