JNCIA-DevOps Python And PyEZ Practice Question
You are rendering a Jinja2 template in Python that includes a loop over a list of VLANs. Which Jinja2 block syntax correctly iterates over a list named 'vlan_list'?
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
✓
{% for vlan in vlan_list %} ... {% endfor %}
Jinja2 uses {% for item in list %} ... {% endfor %} syntax for iteration.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
{{ for vlan in vlan_list }} ... {{ endfor }}
Why it's wrong here
Incorrect. Double braces are for printing expressions, not control blocks.
- ✗
[for vlan in vlan_list] ... [endfor]
Why it's wrong here
Incorrect. Square brackets are not used for Jinja2 control blocks.
- ✓
{% for vlan in vlan_list %} ... {% endfor %}
Why this is correct
Correct. The percent-brace syntax defines control structures like loops.
- ✗
<% for vlan in vlan_list %> ... <% endif %>
Why it's wrong here
Incorrect. This mimics Mako syntax, not Jinja2.
Visual reference
About these practice questions
One of 307 original JNCIA-DevOps practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
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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-DevOps 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-DevOps exam.