SSE-Engineer Prisma Access Planning And Deployment Practice Question
An architect is designing a Prisma Access deployment where branch offices require high availability using redundant IPSec VPN tunnels to Prisma Access Remote Networks. How does Prisma Access handle active-active redundant tunnels from a single branch router?
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
✓
By establishing multiple tunnels terminating on separate SPNs and using BGP multi-path or local preference for failover
Prisma Access supports redundant IPSec tunnels from branch routers, utilizing BGP to manage path selection and failover between the tunnels.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
By utilizing VRRP across the cloud public IP addresses
Why it's wrong here
VRRP cannot be configured across cloud-managed Prisma Access public endpoints.
- ✓
By establishing multiple tunnels terminating on separate SPNs and using BGP multi-path or local preference for failover
Why this is correct
Redundant tunnels terminate on Prisma Access nodes and rely on BGP metrics for active-active or active-passive behavior.
- ✗
By enabling Spanning Tree Protocol (STP) over the IPsec tunnel interfaces
Why it's wrong here
STP is not supported over Prisma Access IPSec tunnels.
- ✗
By configuring LACP bonding directly across the cloud IPSec endpoints
Why it's wrong here
LACP is a Layer 2 link aggregation protocol and cannot be run across cloud-terminated IPSec tunnels.
Quick reference
VPN Protocol Comparison
| Protocol | Port | Encryption | Authentication | Use Case |
|---|---|---|---|---|
| IKEv2 / IPsec | UDP 500 / 4500 | AES-256 | Certificates / PSK | Site-to-site & remote access |
| SSL / TLS VPN | TCP 443 | TLS 1.3 | Certificates / MFA | Clientless remote access |
| L2TP / IPsec | UDP 1701 | AES (IPsec) | PSK / Certificates | Legacy remote access |
| WireGuard | UDP 51820 | ChaCha20 | Public keys | Modern high-performance VPN |
| PPTP | TCP 1723 | MPPE (weak) | MS-CHAPv2 | Legacy — avoid in production |
PPTP is considered insecure. IKEv2/IPsec and SSL VPN are the current recommended options.
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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.