SSE-Engineer Prisma Access Troubleshooting Practice Question
An administrator is troubleshooting a Prisma Access deployment where specific applications are identified as 'incomplete' or 'unknown-tcp' in the Traffic logs. Which THREE factors or troubleshooting steps should be evaluated? (Choose three)
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
✓
Check for asymmetrical routing where traffic enters through one Prisma Access node/tunnel but exits through another.
'Incomplete' and 'unknown-tcp' sessions typically occur due to insufficient data packets for App-ID identification, asymmetrical routing, or session timeouts before handshakes complete.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Verify the expiration date of the GlobalProtect gateway SSL certificate.
Why it's wrong here
Gateway certificates affect TLS establishment, not general App-ID classification of TCP streams.
- ✗
Check the WildFire subscription license key status.
Why it's wrong here
WildFire scans files for malware; it does not determine App-ID session classification.
- ✓
Check for asymmetrical routing where traffic enters through one Prisma Access node/tunnel but exits through another.
Why this is correct
Asymmetrical routing prevents the firewall from seeing both sides of a handshake, leading to 'incomplete' sessions.
- ✓
Examine packet captures to determine if sessions are being terminated before the application handshake (three-way TCP handshake) completes.
Why this is correct
Sessions that drop during handshake appear as 'incomplete' in traffic logs.
- ✓
Verify that security rules and service objects do not prematurely drop traffic before App-ID can inspect enough packets.
Why this is correct
Strict port-based rules or early drops prevent App-ID from gathering sufficient context.
Visual reference
Quick reference
Asymmetric Encryption Algorithm Comparison
| Algorithm | Key Exchange | Signatures | Equivalent Security Key | Notes |
|---|---|---|---|---|
| RSA-3072 | Yes | Yes | 128-bit | Widely deployed; slow for bulk data |
| ECDSA P-256 | No | Yes | 128-bit | Fast signatures; standard TLS certs |
| ECDH / ECDHE | Yes | No | 128-bit | Perfect forward secrecy in TLS 1.3 |
| DH / DHE | Yes | No | 128-bit (3072-bit key) | Replaced by ECDHE in modern TLS |
| Ed25519 | No | Yes | ~128-bit | SSH keys, modern PKI |
About these practice questions
Courseiva writes every SSE-Engineer question from scratch — 203 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Palo Alto Networks exam blueprint
This SSE-Engineer 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 SSE-Engineer exam.