JNCIA-DevOps Python And PyEZ Practice Question
Which TWO of the following methods or attributes are valid ways to handle rollback operations or commit errors when using the PyEZ Config utility (cu)?
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
✓
cu.rollback(id=1)
cu.rollback() reverts the candidate configuration to a previous rollback index, and cu.commit(comment=...) allows committing changes with specific options. Options B and D are correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
cu.force_commit()
Why it's wrong here
force_commit is not a valid method; check-val or confirm flags are passed directly into commit().
- ✓
cu.rollback(id=1)
Why this is correct
cu.rollback() rolls back the candidate configuration to the specified rollback index.
- ✗
cu.undo()
Why it's wrong here
cu.undo() is not a valid PyEZ configuration method.
- ✓
cu.commit(comment="Automated deployment", timeout=30)
Why this is correct
cu.commit accepts parameters such as comment and timeout.
- ✗
cu.revert(rollback=0)
Why it's wrong here
The correct method name is rollback(), not revert().
About these practice questions
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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-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.