XDR-Engineer Planning And Installation Practice Question
An administrator is planning a Cortex XDR deployment across an enterprise network. Which TWO prerequisites must be verified regarding network connectivity and name resolution for successful agent deployment and operation? (Choose two)
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
✓
DNS resolution capable of resolving the Cortex XDR tenant domain name
Agents require outbound HTTPS (TCP 443) connectivity and valid DNS resolution to connect to the Cortex XDR cloud tenant.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
DNS resolution capable of resolving the Cortex XDR tenant domain name
Why this is correct
Endpoints must be able to resolve the fully qualified domain name (FQDN) of the Cortex XDR tenant to establish connections.
- ✗
Inbound TCP port 8080 access from the cloud tenant to every individual endpoint
Why it's wrong here
Cortex XDR uses an outbound-initiated connection model; inbound firewall rules to endpoints are not required.
- ✗
Bidirectional UDP port 514 syslog peering across all local subnets
Why it's wrong here
Syslog peering is not a prerequisite for agent deployment.
- ✗
Active Directory LDAP bind access configured directly on the agent CLI
Why it's wrong here
Agents do not perform direct LDAP binds for standard operation.
- ✓
Outbound TCP port 443 access to the Cortex XDR tenant URL
Why this is correct
Cortex XDR agents require outbound TCP port 443 to communicate with the cloud tenant.
Visual reference
About these practice questions
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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.