JNCIA-DevOps Python And PyEZ Practice Question
You need to execute a custom remote procedure call (RPC) in PyEZ to retrieve the Ethernet switching table. The tag in Junos XML API is get-ethernet-switching-table-information. How should you write this method call in Python?
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
✓
dev.rpc.get_ethernet_switching_table_information()
PyEZ maps XML RPC hyphens to Python underscores, allowing you to call rpc methods directly as attributes on dev.rpc.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
dev.rpc.get-ethernet-switching-table-information()
Why it's wrong here
Incorrect. Python syntax rules do not allow hyphens in method identifiers.
- ✗
dev.get_ethernet_switching_table_information()
Why it's wrong here
Incorrect. RPC methods must be invoked through the .rpc attribute namespace.
- ✗
dev.execute_rpc('get-ethernet-switching-table-information')
Why it's wrong here
Incorrect. While execute() exists for raw XML strings, the standard attribute access uses underscores.
- ✓
dev.rpc.get_ethernet_switching_table_information()
Why this is correct
Correct. PyEZ converts hyphens in RPC names to underscores for Python method calls.
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.