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Difficulty: Very hardRemote Access Technologies and Tools

Match each remote access operational scenario or requirement with the correct protocol, default port assignment, or Windows OS restriction.

  • A network engineer requires an encrypted, authenticated command-line session to securely manage a remote Linux router across an untrusted network.SSH (Secure Shell) utilizing default TCP port 22
  • A help desk technician attempts to configure native incoming Remote Desktop host capabilities on an employee's company-issued laptop running Windows 11 Home edition.Feature unavailable on host OS; incoming RDP server hosting requires Windows Pro, Enterprise, or Education edition
  • A systems administrator establishes a native Windows graphical user interface (GUI) session to perform maintenance on a remote Windows Server 2022 instance.RDP (Remote Desktop Protocol) utilizing default TCP port 3389
  • A security analyst flags an unencrypted, legacy text-based remote administration session during a network packet capture audit.Telnet transmitting plain-text credentials and data over default TCP port 23

Answer

1 matches SSH on TCP port 22; 2 matches Windows Home RDP hosting limitation; 3 matches RDP on TCP port 3389; 4 matches Telnet on cleartext TCP port 23.
Each scenario maps to its underlying protocol specification or OS constraint. Secure command-line access relies on SSH (TCP 22), plain-text legacy access uses Telnet (TCP 23), native Windows GUI management relies on RDP (TCP 3389), and incoming RDP hosting is limited to Windows Pro and higher editions.

Step-by-Step Solution

1
Analyze command-line remote management requirements
Identify SSH as the secure encrypted CLI protocol (TCP port 22) and Telnet as the insecure cleartext CLI protocol (TCP port 23).
Secure network administration requires encryption across untrusted boundaries.
2
Evaluate Windows edition limitations for incoming remote connections
Confirm that Windows 11 Home does not support hosting incoming RDP sessions.
Microsoft restricts the RDP host server feature to Professional, Enterprise, and Education editions.
3
Identify native Windows GUI management protocols and default ports
Map native Windows GUI administration to RDP operating on TCP port 3389.
RDP is Microsoft's primary protocol for remote graphical desktop access.

Key Concept

Remote Access Protocols, Port Numbers, and OS Feature Restrictions
Estimated Time:2m 0s
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Topics

Remote Access Technologies and Tools

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