JNCIA-DevOps NETCONF And XML API Practice Question
An engineer applies a configuration change using NETCONF with <edit-config> and specifies default-operation="replace" at the top level, but includes an element with operation="merge". How does Junos evaluate this?
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
✓
The specific element operation ('merge') takes precedence over the transaction-level default-operation ('replace').
Per-element operation attributes override the default-operation specified at the transaction level.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The transaction fails because default-operation and element operations conflict.
Why it's wrong here
Junos allows specific element operations to override the default operation.
- ✓
The specific element operation ('merge') takes precedence over the transaction-level default-operation ('replace').
Why this is correct
Per-element attributes override the default-operation setting.
- ✗
The device rolls back the configuration due to ambiguous parameters.
Why it's wrong here
Ambiguity of this type is resolved by standard hierarchical precedence rules.
- ✗
The default-operation takes precedence, ignoring the merge attribute.
Why it's wrong here
Per-element operations specifically override defaults.
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This JNCIA-DevOps question is part of Courseiva's 307-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
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.