XDR-Engineer Planning And Installation Practice Question
An administrator is planning the initial deployment of Cortex XDR agents across a mixed environment of Windows and macOS endpoints. Which firewall port and protocol must be opened outbound from the endpoints to ensure successful registration and telemetry reporting to the Cortex XDR management console?
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
✓
TCP port 443 outbound
Cortex XDR agents require outbound TCP port 443 for HTTPS communication to the Cortex XDR management console and tenant endpoints.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
UDP port 514 inbound
Why it's wrong here
Syslog uses port 514, which is not used by Cortex XDR agent communications.
- ✓
TCP port 443 outbound
Why this is correct
Cortex XDR agents communicate with the cloud tenant exclusively over outbound TCP port 443.
- ✗
TCP port 3389 inbound
Why it's wrong here
Port 3389 is used for Remote Desktop Protocol (RDP) and is not utilized by the agent.
- ✗
TCP port 22 outbound
Why it's wrong here
Port 22 is used for SSH and is not required for Cortex XDR agent functionality.
About these practice questions
One of 226 original XDR-Engineer practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Palo Alto Networks exam blueprint
This XDR-Engineer 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 XDR-Engineer exam.