JNCIA-SEC Junos OS Security Objects Practice Question
You want to create a security zone that permits all host-inbound traffic for system services and protocols without manually listing every service. Is there a wildcard or all-inclusive keyword for host-inbound-traffic in Junos OS?
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
✓
Yes, you can configure 'set security zones security-zone trust host-inbound-traffic system-services all'.
Junos host-inbound-traffic allows specifying 'all' under system-services or protocols to permit everything, though it is discouraged for security reasons.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Yes, you can configure 'set security zones security-zone trust host-inbound-traffic system-services all'.
Why this is correct
Junos supports the 'all' keyword for system-services and protocols in host-inbound traffic.
- ✗
No, host-inbound traffic cannot allow wildcard services for security compliance reasons.
Why it's wrong here
Junos permits the keyword 'all' despite security best practices advising against it.
- ✗
Yes, by using the 'any' keyword instead of 'all'.
Why it's wrong here
'all' is the correct keyword in Junos CLI.
- ✗
No, every service must be explicitly listed individually.
Why it's wrong here
The 'all' keyword is supported.
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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.