The correct answer is that this firewall supports a maximum of 5 million concurrent sessions. This is true because the PA-5250, a chassis-based model in the PA-5200 series, has a fixed hardware specification of 5 million sessions, regardless of the PAN-OS version shown in the output. On the PCNSA exam, this question tests your ability to distinguish between platform-specific hardware limits and software-based features; a common trap is assuming session limits scale with PAN-OS version, but they are tied to the physical model. For the PA-5250, remember the mnemonic “Five for the 50” — the “50” in the model number signals the 5 million session ceiling.
PCNSA Palo Alto Networks Platforms and Architecture Practice Question
This PCNSA practice question tests your understanding of palo alto networks platforms and architecture. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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.
Exhibit
show system info
System info:
Hostname: FW-01
Model: PA-5250-5G
PAN-OS version: 10.1.6
Serial number: 0123456789
System uptime: 14 days, 3 hours, 45 minutes
Refer to the exhibit. A network engineer executes the "show system info" command and sees the above output. Based on the model and PAN-OS version, which of the following is true about this firewall?
show system info
System info:
Hostname: FW-01
Model: PA-5250-5G
PAN-OS version: 10.1.6
Serial number: 0123456789
System uptime: 14 days, 3 hours, 45 minutes
A
It has redundant power supplies.
Why wrong: The model name does not indicate power supply redundancy.
B
It supports a maximum of 10 virtual systems.
Why wrong: The maximum number of virtual systems depends on licensing, not solely the model.
C
It can be upgraded to PAN-OS 11.0 directly without an intermediate version.
Why wrong: Upgrade paths may require intermediate versions depending on the current version.
D
It supports maximum sessions of 5 million.
The PA-5250-5G model supports up to 5 million concurrent sessions.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
It supports maximum sessions of 5 million.
The output shows a PA-5250 firewall running PAN-OS 9.1.3. The PA-5250 is a high-end chassis-based platform that supports up to 5 million concurrent sessions, making option D correct. This session limit is a hardware specification of the PA-5200 series, not determined by the PAN-OS version alone.
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.
✗
It has redundant power supplies.
Why it's wrong here
The model name does not indicate power supply redundancy.
✗
It supports a maximum of 10 virtual systems.
Why it's wrong here
The maximum number of virtual systems depends on licensing, not solely the model.
✗
It can be upgraded to PAN-OS 11.0 directly without an intermediate version.
Why it's wrong here
Upgrade paths may require intermediate versions depending on the current version.
✓
It supports maximum sessions of 5 million.
Why this is correct
The PA-5250-5G model supports up to 5 million concurrent sessions.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the virtual system limit (which varies by model) with session limits, or assume that any PAN-OS version can be upgraded directly to the latest major release without considering the required upgrade path.
Detailed technical explanation
How to think about this question
The session limit of a Palo Alto firewall is tied to its hardware architecture, specifically the processing capacity of the data plane (e.g., PA-5250 uses a Cavium Octeon processor). Session counts are measured as concurrent flows tracked in the session table, and exceeding this limit can cause packet drops or session timeouts. In real-world deployments, understanding session limits is critical for capacity planning, especially in high-traffic environments like data centers or ISPs.
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 practitioner preparing for the PCNSA exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
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.
Palo Alto Networks Platforms and Architecture — This question tests Palo Alto Networks Platforms and Architecture — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: It supports maximum sessions of 5 million. — The output shows a PA-5250 firewall running PAN-OS 9.1.3. The PA-5250 is a high-end chassis-based platform that supports up to 5 million concurrent sessions, making option D correct. This session limit is a hardware specification of the PA-5200 series, not determined by the PAN-OS version alone.
What should I do if I get this PCNSA 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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.