PCNSA Device Management and Services Practice Question
Which TWO conditions must be true for intra-zone traffic to be allowed between two interfaces in the same zone?
⚠ Common exam trap
Test-takers frequently assume the intra-zone default rule (Option B) is a mandatory condition, but it is actually a default behavior that can be changed; the question requires conditions that must be true, and the default rule is not strictly necessary if an explicit security policy exists.
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
✓
The interfaces are in the same virtual router
Intra-zone traffic between two interfaces in the same zone requires that both interfaces belong to the same virtual router (Option A) because the virtual router defines the routing table and forwarding domain. Without this, the firewall cannot route packets between the interfaces even if they are in the same zone. Additionally, a security policy must explicitly allow the traffic (Option E), as Palo Alto Networks firewalls default to a deny-all posture; no traffic is permitted without an explicit rule.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The interfaces are in the same virtual router
Why this is correct
Interfaces must be in the same virtual router for routing.
- ✗
Intra-zone default rule is set to allow
Why it's wrong here
If an explicit policy exists, the default rule is not used.
- ✗
The zones are in the same vsys
Why it's wrong here
vsys is not a factor for intra-zone traffic.
- ✗
The interfaces are in the same virtual wire
Why it's wrong here
Virtual wire is a different deployment mode.
- ✓
A security policy explicitly allows the traffic
Why this is correct
Without an explicit allow rule, traffic will be denied unless intra-zone default is allow.
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About these practice questions
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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.