JNCIA-SEC Monitoring And Troubleshooting Practice Question
An engineer is debugging an IPsec VPN tunnel that fails to establish. They want to enable tracing for IKE negotiations to inspect packet exchanges. Where should IKE traceoptions be configured?
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
✓
[edit security ike traceoptions]
IKE tracing is configured under the [edit security ike traceoptions] hierarchy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
[edit security ike traceoptions]
Why this is correct
IKE daemon traceoptions are configured under [edit security ike traceoptions] to debug phase 1 negotiations.
- ✗
[edit security ipsec traceoptions]
Why it's wrong here
IPsec traceoptions exist for phase 2, but IKE phase 1 negotiation tracing is configured under security ike.
- ✗
[edit protocols ike traceoptions]
Why it's wrong here
Routing protocols are under protocols, but security features like IKE reside under the security configuration block.
- ✗
[edit system services ike traceoptions]
Why it's wrong here
IKE is a security service, not a general system service.
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
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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 Juniper Networks exam blueprint
This JNCIA-SEC practice question is part of Courseiva's free Juniper 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 JNCIA-SEC exam.