JNCIA-DevOps Python And PyEZ Practice Question
When developing Python scripts that utilize PyEZ and Jinja2, which THREE best practices ensure robust and maintainable automation code? (Choose three)
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
✓
Using the PyEZ Config context manager to ensure locks are released and rollbacks occur on error
Best practices include proper exception handling, using context managers, and separating templates from logic.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Using the PyEZ Config context manager to ensure locks are released and rollbacks occur on error
Why this is correct
Correct. Context managers handle resource cleanup safely.
- ✗
Hardcoding administrative passwords inside template files for easy rendering
Why it's wrong here
Incorrect. Hardcoding secrets is a severe security violation.
- ✓
Using try-except blocks to catch specific PyEZ exceptions like ConnectError and ConfigError
Why this is correct
Correct. Proper exception handling ensures graceful failure recovery.
- ✗
Avoiding device.close() calls to keep network sessions open permanently
Why it's wrong here
Incorrect. Sessions should always be closed cleanly after script completion.
- ✓
Separating Jinja2 template files from core Python execution scripts
Why this is correct
Correct. Separation of concerns improves maintainability.
About these practice questions
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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.