SSE-Engineer Prisma Access Services Practice Question
A security engineer is configuring a Prisma Access Remote Network location with redundant IPsec tunnels to ensure high availability. What configuration requirement must be met on the customer premise equipment (CPE) router to support dynamic routing over these redundant tunnels?
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
✓
BGP peering must be established across both tunnels with the Prisma Access service node.
BGP peering must be configured over both IPsec tunnels, with appropriate path metrics or AS path prepending to manage active/backup or active/active flow.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Static floating routes with identical metrics must be used.
Why it's wrong here
While static routes are supported, dynamic routing with BGP is the recommended approach for redundant tunnels.
- ✓
BGP peering must be established across both tunnels with the Prisma Access service node.
Why this is correct
Dynamic routing with BGP over IPsec enables automatic failover between redundant tunnels.
- ✗
OSPF area 0 must be configured on the CPE interface.
Why it's wrong here
OSPF is not supported over Prisma Access IPsec connections.
- ✗
GRE encapsulation must wrap the IPsec packets.
Why it's wrong here
Prisma Access IPsec tunnels do not require GRE wrapping.
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.
About these practice questions
This SSE-Engineer question is part of Courseiva's 203-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam 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.