Question

Difficulty: MediumRemote Access Technologies and Tools

A systems administrator is establishing remote management procedures for a branch office network that contains Linux-based router appliances and Windows 11 Pro client workstations. The administrator must enable secure command-line administration for the routers and allow helpdesk technicians to remotely control the workstation desktops via graphical sessions. Which TWO of the following configurations or protocols must be implemented to fulfill these requirements securely? (Select TWO.)

  1. Permit inbound TCP port 22 traffic through firewalls to enable secure SSH command-line sessions on Linux router appliances.Answer
  2. Permit inbound TCP port 3389 traffic through host firewalls to allow Remote Desktop Protocol (RDP) sessions on Windows 11 Pro workstations.Answer
  3. C
    Permit inbound TCP port 23 traffic to enable encrypted Telnet remote terminal access to network routers.
  4. D
    Upgrade client workstations to Windows 11 Enterprise because Windows 11 Pro only supports outgoing RDP connections and cannot host incoming sessions.

Answer

The administrator must permit inbound TCP port 22 traffic to enable secure SSH terminal access for the Linux router appliances and permit inbound TCP port 3389 traffic to allow RDP sessions on the Windows 11 Pro client workstations.
The solution requires encrypted CLI access for Linux network hardware and full graphical remote desktop access for Windows workstations. SSH on TCP port 22 fulfills the secure CLI requirement, and RDP on TCP port 3389 provides graphical remote desktop control on Windows 11 Pro systems.

Step-by-Step Solution

1
Identify the required remote access protocol for secure command-line administration of Linux routers.
SSH uses TCP port 22 and provides end-to-end encryption for terminal sessions.
Cleartext protocols like Telnet on TCP port 23 are vulnerable to packet sniffing and should not be used.
2
Identify the required remote access protocol and edition support for GUI management of Windows workstations.
Remote Desktop Protocol (RDP) uses TCP port 3389 to deliver full desktop graphical control.
Windows 11 Pro supports incoming RDP server host functionality without requiring an upgrade to Enterprise edition.

Key Concept

Remote Access Protocols, Port Assignments, and OS Edition Capabilities
Estimated Time:1m 30s
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