Free JNCIA-DevOps practice test — 307+ JNCIA-DevOps practice questions with detailed explanations across all 5 official JNCIA-DevOps exam domains. Every set is scored and drawn from the live question bank — so you practise exactly what the exam tests, not outdated dumps.
Courseiva includes 307+ Juniper Networks Automation and DevOps, Associate (JNCIA-DevOps, JN0-224) (JNCIA-DevOps) practice questions across the official exam domains.
Feature
Courseiva
This free JNCIA-DevOps practice test mirrors the structure and difficulty of the real Juniper Networks Automation and DevOps, Associate (JNCIA-DevOps, JN0-224) (JNCIA-DevOps) exam. Every question is written against the official 2026 exam blueprint published by Juniper Networks, ensuring you practise exactly what the exam tests — not last year's objectives.
The JNCIA-DevOps blueprint is divided into 5weighted domains. Questions on this page are distributed proportionally across each domain, so the mix you see here reflects the same weighting you'll face on exam day. High-weight domains like Python And PyEZ and Junos Automation Stack And DevOps Concepts contribute the most questions, meaning focused practice on these areas gives you the highest return on study time.
JNCIA-DevOps Exam Blueprint — 5 Domains
Python And PyEZ
Junos Automation Stack And DevOps Concepts
Data Serialization
NETCONF And XML API
Junos REST API
23 numbered sets, 5 domain question banks, and targeted sessions — every page is a unique set of questions.
Choose all correct answers
Each chapter page covers one topic in depth — theory, key concepts, and focused practice questions. Use these to close knowledge gaps before returning to full practice tests.
Getting the most from practice questions requires more than just clicking through answers. Here is the study method used by candidates who pass JNCIA-DevOps on their first attempt:
Answer before revealing
Read each JNCIA-DevOps question fully, eliminate obviously wrong choices, then commit to an answer before clicking to reveal. This active recall process is what builds lasting knowledge.
Read every explanation
Even when you answer correctly, read the full explanation. Knowing WHY the right answer is correct — and why the distractors are wrong — is what separates a 750 score from a 900 score.
Track weak domains
Note which JNCIA-DevOps domains you get wrong most often. Then do a targeted 20-30 question session focused only on that domain until your accuracy improves.
Simulate exam pacing
The real JNCIA-DevOps gives you roughly 0.6 minutes per question. Use the 60 or 120-question sessions to practise hitting that pace comfortably.
Most candidates who pass JNCIA-DevOps on their first attempt report doing between 400 and 800 practice questions over 4–8 weeks of preparation. With 307+ questions in the Courseiva bank, you have more than enough material to build that repetition without seeing the same question twice.
Answer each question to reveal the full explanation and correct answer. This starter set is drawn from all 5 exam domains in blueprint proportion. Use the session selector to start a longer focused practice run.
An automation engineer is writing a Python script using Juniper PyEZ to connect to a Junos device. Which context manager approach is best practice to ensure the Device session is properly closed even if an exception occurs?
Select an answer to reveal the explanation
You are configuring a CI/CD pipeline for Junos network deployments. The pipeline must validate the syntax of generated candidate configurations against a physical or virtual Junos device before committing them to production. Which stage of the CI/CD pipeline does this validation step represent?
Select an answer to reveal the explanation
What is the primary delimiter used to separate key-value pairs in a JSON object?
Select an answer to reveal the explanation
Which NETCONF capability URI indicates that the server supports rolling back configuration changes to previous commit points?
Select an answer to reveal the explanation
An automation engineer wants to retrieve information about all software packages installed on a Junos device using the REST API. Which operational RPC endpoint category is typically targeted?
Select an answer to reveal the explanation
Which command is used in Git to save staged changes to the local repository with a descriptive commit message?
Select an answer to reveal the explanation
During a NETCONF session with a Junos device, an automation script issues an RPC to load a configuration. The device returns a response containing an <rpc-error> tag. What does this indicate?
Select an answer to reveal the explanation
Which file extension is conventionally used for YAML data serialization files?
Select an answer to reveal the explanation
A Python script processes a YAML configuration template for Junos BGP neighbors. The configuration contains a multi-line banner string description. Which YAML block scalar indicator preserves newlines exactly as written in the text block?
Select an answer to reveal the explanation
What is the native data format returned by Junos devices when queried via REST API or NETCONF operations configured with JSON output formatting?
Select an answer to reveal the explanation
An automation engineer is designing a deployment strategy for Junos devices using Git branches. Which branching strategy model aligns best with continuous delivery where feature branches are merged frequently into a shared integration branch that automatically triggers staging tests?
Select an answer to reveal the explanation
Which symbol represents the beginning of a single YAML document stream?
Select an answer to reveal the explanation
An automation engineer needs to pretty-print a JSON payload in the Linux terminal for debugging Junos telemetry. Which built-in Python command-line utility can be invoked to validate and pretty-print a JSON file?
Select an answer to reveal the explanation
When parsing a Junos configuration snippet in YAML, an engineer notices a string value starting with a zero (e.g., '01234') that is unquoted. How do YAML parsers typically interpret this value?
Select an answer to reveal the explanation
Which of the following valid JSON values represents a boolean true state?
Select an answer to reveal the explanation
You are writing a Python automation script that reads a Junos configuration file in JSON format. The JSON file contains duplicate keys within the same object scope. According to the JSON specification RFC 8259, how should a conforming JSON parser handle duplicate keys?
Select an answer to reveal the explanation
An automation engineer needs to convert a JSON payload representing Junos interface configurations into equivalent YAML format to reuse in an Ansible playbook. Which fundamental structural relationship between JSON and YAML makes this conversion straightforward?
Select an answer to reveal the explanation
When converting a deeply nested JSON data structure representing Junos device health metrics into YAML using PyYAML, the output uses complex block styles that are difficult for team members to read. Which parameter in yaml.safe_dump() can force scalar values or containers to prefer flow style (JSON-like curly braces and brackets) instead?
Select an answer to reveal the explanation
Which Python function deserializes a JSON-formatted string into a native Python dictionary?
Select an answer to reveal the explanation
An automation script reads interface names and VLAN IDs from a CSV file and converts each row into a JSON object before sending it to a Junos device REST API. Which Python module is specifically designed to parse CSV (Comma-Separated Values) files?
Select an answer to reveal the explanation
Answer all 20 questions to see your domain score breakdown
A structured study plan dramatically increases your chances of passing JNCIA-DevOps on the first attempt. The most effective approach combines reading the official Juniper Networks documentation or a study guide, watching video explanations for difficult concepts, and then reinforcing everything with daily practice questions.
We recommend the following weekly structure for JNCIA-DevOps preparation:
Cover each JNCIA-DevOps domain systematically. Read the exam objectives, watch explanatory content, and do 10–20 practice questions per domain to test understanding as you go.
Run full 50–60 question mixed sessions daily. Review every wrong answer in detail. Identify which domains are consistently scoring below 70% and revisit those study materials.
Do 100–120 question timed sessions to simulate real exam conditions. Aim for consistent scores above 80% before booking your exam date. A score above 80% in practice typically translates to a passing JNCIA-DevOps score.
On exam day, the JNCIA-DevOps tests your ability to apply knowledge to realistic scenarios — not just recall definitions. This is why reading explanations and understanding the reasoning behind every answer matters more than simply grinding question volume. Use the high-count sessions (100, 120) in the final weeks as your confidence benchmark.
Questions
200
On the real exam
Time limit
120 min
0.6 min per question
Passing score
700/1000
Scaled scoring
The JNCIA-DevOps exam uses a scaled scoring system — your raw score of correct answers is converted to a score out of 1000. A passing score of 700/1000 does not mean you need 70% of questions correct; the conversion accounts for question difficulty. Consistently scoring above 75–80% on practice tests puts you in a strong position to achieve 700/1000 on the real exam.
Scenario-based questions covering exam objectives with detailed answer explanations.
Yes. Courseiva provides free Juniper Networks Automation and DevOps, Associate (JNCIA-DevOps, JN0-224) (JNCIA-DevOps) practice questions with explanations across the official exam domains. Start with a quick practice test, then continue with topic-based practice, mock exams, missed-question review, bookmarked questions, weak-topic recommendations, and readiness tracking. No account required. Create a free account to unlock per-domain analytics and progress tracking across every certification on the platform. Courseiva is free forever, supported by advertising.
Every question is written against the official JNCIA-DevOps exam blueprint published by Juniper Networks. Our questions follow the same wording style, scenario complexity, and answer structure as the actual exam. They are original questions — not brain dumps — so you learn the underlying concepts and reasoning, not just memorised answers. Candidates who study with brain dumps often pass but have no transferable knowledge; Courseiva questions make you genuinely competent.
Most candidates who pass JNCIA-DevOps on their first attempt do 30–60 questions per day. Use the Quick 10 session for daily warm-ups when you are short on time. On study days, run a 50 or 60-question session to build stamina. Reserve 100 and 120-question sessions for the final two weeks when you want to simulate real exam conditions and benchmark your readiness.
The JNCIA-DevOps covers 5 domains: Python And PyEZ, Junos Automation Stack And DevOps Concepts, Data Serialization, NETCONF And XML API, Junos REST API. Each domain carries a different weight, so allocate your study time accordingly. The highest-weighted domains — Python And PyEZ and Junos Automation Stack And DevOps Concepts — should receive the most attention.
Exam dumps are memorised question-and-answer lists taken from actual exam papers, often obtained illegally and shared without Juniper Networks's authorisation. Using them violates your NDA and Juniper Networks's certification agreement, and can result in certification revocation. Courseiva questions are 100% original — written by certified engineers to test the same knowledge areas using new scenarios and wording. You learn the material, not just the answers.
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