PCNSE Manage, Monitor and Operate Practice Question
This PCNSE practice question tests your understanding of manage, monitor and operate. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company has a PA-3260 firewall configured with multiple virtual routers for segmentation. A new subnet 192.168.30.0/24 is added behind a layer3 interface that is part of virtual router 'VR-A'. The administrator adds a static route on the firewall to reach the subnet via next-hop 10.0.0.1. However, hosts in another virtual router 'VR-B' cannot reach the new subnet. The route is present in VR-A's routing table. What should the administrator do to resolve the issue?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Add a static route in VR-B pointing to the new subnet with next-hop as the interface IP of VR-A's interface.
Virtual routers in Palo Alto Networks firewalls are isolated routing tables. A route in VR-A is not visible to VR-B unless explicitly shared. Adding a static route in VR-B with the next-hop pointing to the interface IP of VR-A's interface (the gateway between the two virtual routers) allows VR-B to forward traffic for 192.168.30.0/24 to VR-A, which then routes it to the correct subnet. This is the standard method for inter-virtual-router routing without dynamic redistribution.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Create a security policy rule allowing the traffic between the zones.
Why it's wrong here
Security policy is necessary but does not solve the routing issue.
✓
Add a static route in VR-B pointing to the new subnet with next-hop as the interface IP of VR-A's interface.
Why this is correct
This gives VR-B the necessary routing information to reach the subnet via VR-A.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure route redistribution between VR-A and VR-B using a routing protocol.
Why it's wrong here
This would work but is overkill for a single subnet; simpler to add a static route.
✗
Place all interfaces in the same virtual router.
Why it's wrong here
This would break the segmentation that the company wants.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume security policies are the only barrier between virtual routers, forgetting that virtual routers are isolated routing domains and a route must exist in the source virtual router's table before any policy can be applied.
Detailed technical explanation
How to think about this question
Palo Alto Networks virtual routers maintain separate FIBs (Forwarding Information Bases) and do not share routes by default. When a packet arrives at VR-B, the firewall performs a route lookup in VR-B's routing table; if no matching route exists, the packet is dropped with a 'no route' log entry, even if VR-A has the route. A static route in VR-B with a next-hop of VR-A's interface IP (e.g., 10.0.0.2) essentially creates a 'route leak' that directs traffic to VR-A, which then performs its own lookup. This is analogous to inter-VRF routing in Cisco IOS using static routes or route leaking.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A network engineer segments a warehouse floor into three subnets: 20 scanners, 5 printers, and 2 management hosts. Picking the wrong mask wastes addresses or leaves too few usable hosts. Exam questions test whether you can apply CIDR notation, calculate block size, and identify the correct usable-host range for a given prefix.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Manage, Monitor and Operate — This question tests Manage, Monitor and Operate — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Add a static route in VR-B pointing to the new subnet with next-hop as the interface IP of VR-A's interface. — Virtual routers in Palo Alto Networks firewalls are isolated routing tables. A route in VR-A is not visible to VR-B unless explicitly shared. Adding a static route in VR-B with the next-hop pointing to the interface IP of VR-A's interface (the gateway between the two virtual routers) allows VR-B to forward traffic for 192.168.30.0/24 to VR-A, which then routes it to the correct subnet. This is the standard method for inter-virtual-router routing without dynamic redistribution.
What should I do if I get this PCNSE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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This PCNSE 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 PCNSE exam.
Question Discussion
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