JNCIA-SEC Srx Series Service Gateways Practice Question
Which TWO characteristics describe the Junos OS CLI? (Choose two)
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
✓
It supports command and parameter completion using the Tab key.
The Junos CLI features tab-completion, hierarchical configuration structure, and operational/configuration modes.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It automatically deletes all routes upon login.
Why it's wrong here
Logging in does not affect routes.
- ✓
It supports command and parameter completion using the Tab key.
Why this is correct
Tab-completion is a core feature of the Junos CLI.
- ✗
It only supports graphical mouse navigation.
Why it's wrong here
Junos CLI is text-based.
- ✗
It requires typing raw binary machine code for all commands.
Why it's wrong here
Junos uses human-readable CLI command syntax.
- ✓
It features modal operation (Operational mode and Configuration mode).
Why this is correct
Junos separates monitoring (operational) from configuration editing (configuration mode).
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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.