The correct answer is that the Panorama application filter must specify the parent application 'facebook' because 'facebook-base' is a sub-application. In Panorama, when filtering by sub-application, you cannot use the sub-application name alone in the app filter; you must first match the parent application and then use a separate subapp parameter, such as (app eq facebook)(subapp eq facebook-base). This is a common trap on the Palo Alto Networks Certified Network Security Administrator PCNSA exam, testing your understanding of how Panorama handles application hierarchy versus a local firewall’s log query, which may resolve sub-applications differently. The zero results occur because Panorama treats 'facebook-base' as an unrecognized top-level application filter, not as a sub-application of 'facebook'. A useful memory tip: think of it like a folder structure—you must open the parent folder before you can find the sub-folder inside.
PCNSA Device Management and Services Practice Question
This PCNSA practice question tests your understanding of device management and services. 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 security analyst uses Panorama to generate a custom report on all traffic using the application 'facebook-base' across the enterprise. The analyst creates a new report template in Panorama with the filter '(app eq facebook-base)' and runs the report for the past 30 days. The report returns zero results. However, when the analyst logs into a specific firewall and queries the traffic logs using the same filter, results appear. The analyst confirms that the firewall is configured to forward logs to Panorama and that Panorama receives logs from all firewalls. What is the most likely reason the Panorama report fails to return data?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The application filter must specify the parent application 'facebook' because 'facebook-base' is a sub-application.
In Panorama, application filters require the parent application name when filtering by sub-application. 'facebook-base' is a sub-application of 'facebook', so the correct filter should be '(app eq facebook)(subapp eq facebook-base)'. Option A (commit to device group) is not required for reports. Option C (scheduled only) is false. Option D (separate port) is incorrect.
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.
✓
The application filter must specify the parent application 'facebook' because 'facebook-base' is a sub-application.
Why this is correct
Panorama requires the parent application for sub-application filters.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Panorama only supports scheduled reports, not ad-hoc queries.
Why it's wrong here
Panorama supports both ad-hoc and scheduled reports.
✗
The report template is not committed to the device group.
Why it's wrong here
Report templates are committed to Panorama, not device groups.
✗
The firewall's log forwarding profile must be set to send logs to Panorama on a separate port.
Why it's wrong here
No separate port is required.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 PCNSA exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Device Management and Services — This question tests Device Management and Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The application filter must specify the parent application 'facebook' because 'facebook-base' is a sub-application. — In Panorama, application filters require the parent application name when filtering by sub-application. 'facebook-base' is a sub-application of 'facebook', so the correct filter should be '(app eq facebook)(subapp eq facebook-base)'. Option A (commit to device group) is not required for reports. Option C (scheduled only) is false. Option D (separate port) is incorrect.
What should I do if I get this PCNSA question wrong?
Identify which PCNSA exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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