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mediumDrag & DropObjective-mapped
CCNP Practice Question: Drag and drop the steps of FlexVPN spoke-to-spoke…
Drag and drop the steps of FlexVPN spoke-to-spoke dynamic tunnel creation into the correct order, from first to last.
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
✓
Spoke sends IKEv2 auth request to hub
In FlexVPN, a spoke sends an IKEv2 authentication request to the hub. The hub authenticates the spoke and sends back the IKEv2 configuration payload with the remote spoke's address. The originating spoke then initiates a direct IKEv2 session to the remote spoke. Both spokes complete IKEv2 authentication and IPsec SA setup. Finally, traffic flows directly between the spokes without going through the hub.
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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Same concept, more angles
1 more way this is tested on 350-401
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Variation 1. Drag and drop the steps of FlexVPN spoke-to-spoke dynamic tunnel creation into the correct order, from first to last.
medium- ✓ A.Spoke1 sends IKEv2 request to hub for Spoke2
- ✓ B.Hub sends redirect notification with Spoke2 address
- ✓ C.Spoke1 initiates IKEv2 SA with Spoke2
- ✓ D.Spoke1 and Spoke2 authenticate each other directly
- ✓ E.Spoke1 and Spoke2 establish IPsec SA
Why A: In FlexVPN, the spoke-to-spoke dynamic tunnel creation process uses IKEv2, not IKEv1. The correct sequence: Spoke1 sends an IKEv2 request to the hub for information about Spoke2. The hub responds with a redirect notification containing Spoke2's address. Spoke1 then initiates a direct IKEv2 SA with Spoke2. Authentication is performed directly between spokes (typically using certificates or pre-shared keys), not via the hub. After authentication, they establish an IPsec SA for secure data transfer.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-401 practice question is part of Courseiva's free Cisco 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 350-401 exam.