JNCIA-SEC Content Security Practice Question
You are troubleshooting an issue where an SRX firewall fails to update its UTM antivirus signatures automatically. The firewall has internet access, but updates consistently fail with a signature download error. Which troubleshooting step or CLI command can verify whether the SRX can reach the Juniper update servers?
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
✓
ping update.juniper.net (or the configured update server hostname) to verify DNS and reachability.
Testing connectivity and DNS resolution to the update servers via ping or checking update server status helps diagnose update failures.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Reboot the Routing Engine into single-user recovery mode.
Why it's wrong here
Recovery mode is unnecessary for network connectivity troubleshooting.
- ✗
Run 'request system software delete antivirus' to reset the update daemon.
Why it's wrong here
Deleting software removes features rather than fixing network connectivity.
- ✗
Modify the security policy to allow all traffic without inspection.
Why it's wrong here
Bypassing inspection does not fix signature server reachability.
- ✓
ping update.juniper.net (or the configured update server hostname) to verify DNS and reachability.
Why this is correct
Pinking the update server validates network connectivity and DNS resolution.
Visual reference
About these practice questions
Courseiva writes every JNCIA-SEC question from scratch — 520 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 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.