PCNSA Managing Objects Practice Question
An administrator creates a custom service object for TCP port 3389. What is the standard name for this service?
⚠ Common exam trap
Candidates often confuse RDP with other remote access protocols like SSH or Telnet, but the specific port 3389 is exclusively associated with RDP in standard networking practice.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
RDP
TCP port 3389 is the default port used by Remote Desktop Protocol (RDP), which is a Microsoft proprietary protocol that enables remote graphical desktop access to Windows systems. The administrator creating a custom service object for this port is standardizing the service as RDP, as defined in the PCNSA curriculum for managing objects.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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FTP
Why it's wrong here
Port 3389 carries Microsoft Remote Desktop Protocol, not FTP, which uses TCP ports 20 and 21. FTP tempts because it is a familiar TCP service with standard port assignments, and would be the right label only for a service object defined on those FTP ports.
- ✓
RDP
Why this is correct
TCP port 3389 is the registered port for Remote Desktop Protocol, so Palo Alto Networks recognises the custom service object by its standard name RDP. Naming it correctly ensures the security policy matches Remote Desktop traffic rather than relying on an ambiguous custom label.
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SSH
Why it's wrong here
Port 3389 carries Microsoft Remote Desktop Protocol, not SSH, which uses TCP port 22. SSH tempts because it is a common remote-administration protocol, and naming it would be correct only if the custom service object were defined on TCP port 22.
- ✗
Telnet
Why it's wrong here
Port 3389 carries Microsoft Remote Desktop Protocol, not Telnet, which uses TCP port 23. Telnet tempts because it is another well-known remote-access service, and naming it would be correct only if the custom service object specified TCP port 23.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCNSA practice question is part of Courseiva's free Palo Alto Networks certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCNSA exam.