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Zorluk: OrtaNetworking Ports and Protocols

A systems administrator needs to configure an access control list (ACL) on a corporate firewall to allow remote graphical desktop administration of a Windows server from a designated management subnet. Which port and transport layer protocol combination must be explicitly permitted through the firewall for Remote Desktop Protocol (RDP) traffic?

  1. TCP port 3389Cevap
  2. B
    TCP port 22
  3. C
    TCP port 23
  4. D
    TCP port 443

Cevap

TCP port 3389 is the default port used by Microsoft Remote Desktop Protocol (RDP) for remote desktop access.
Remote Desktop Protocol (RDP) is a proprietary Microsoft protocol that allows a user to connect to another computer over a network connection with a full graphical interface. RDP communicates using TCP port 3389 by default.

Adım Adım Çözüm

1
Identify the required service and application protocol from the scenario.
The scenario specifies establishing remote graphical administration using Remote Desktop Protocol (RDP).
Determining the protocol defines which transport protocol and default port number must be allowed.
2
Map the protocol to its standardized well-known / registered port number.
RDP relies on TCP port 3389 for establishing full interactive desktop sessions.
Firewalls require accurate transport protocol (TCP/UDP) and destination port configuration.

Anahtar Kavram

Remote Desktop Protocol (RDP) operates on TCP port 3389.
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Networking Ports and Protocols

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