PCNSA App-ID and Content-ID Practice Question
An administrator wants to block upload of files with extension .exe to the application 'box-net'. Which security policy component is most appropriate?
⚠ Common exam trap
A common mix-up: candidates confuse File Blocking with Data Filtering, but Data Filtering is for data patterns (e.g., SSNs), not file types, while File Blocking specifically targets file extensions and types.
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
✓
File Blocking profile
The File Blocking profile is the correct choice because it is specifically designed to block files based on type (e.g., .exe) within allowed applications like 'box-net'. This profile works with App-ID to enforce content-level control, preventing the upload of executable files while still permitting the application's traffic.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Data Filtering profile
Why it's wrong here
Data Filtering profiles inspect file content and data patterns, not filename extensions, so .exe uploads pass unfiltered. It is tempting because filtering sounds like file control, and it would be correct for blocking credit-card numbers or confidential data patterns in transit.
- ✗
Application filter in security rule
Why it's wrong here
Application filters match application characteristics, not file extensions, so an .exe upload within an allowed application is not distinguished. It is tempting because it targets box-net traffic, and it would be correct for permitting or denying the application itself rather than specific file types.
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URL Filtering profile
Why it's wrong here
URL Filtering classifies traffic by web category and URL, not by file extension, so it cannot inspect the .exe filename inside an upload to box-net. It is tempting because it governs SaaS application access, but that scenario is blocking categories or URLs, not file types; File Blocking handles extensions.
- ✓
File Blocking profile
Why this is correct
A File Blocking profile inspects traffic by file type and direction, letting you block specific extensions such as .exe on upload while permitting downloads. Applied to the box-net application, it directly satisfies the requirement to prevent .exe uploads, unlike URL Filtering or App-ID rules, which cannot match file extensions.
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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.