JN0-224 Exam Preparation Material | Automation and DevOps, Associate (JNCIA-DevOps)

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Prepare for the JN0-224 Automation and DevOps, Associate (JNCIA-DevOps) exam with CertQueen's independently developed study resources. Review important concepts, practice scenario-based questions, and use clear explanations to identify areas that require further study.

Question#1

Exhibit.



You have the configuration shown in the exhibit, but are unable to access the REST API Explorer.
Which configuration is necessary to solve this problem?

A. Configure the rest service to be active on port 80.
B. Configure an IPv4 address on ge-0/0/0 0.
C. Configure a secondary IPv6 address on ge-0/0/0.0.
D. Configure a firewall filter to explicitly permit SS

Question#2

Which two statements are correct about a Python dictionary data type? (Choose two.)

A. The data contained in a dictionary data type cannot be removed once the dictionary has been created.
B. The data stored in a dictionary data type is sequenced and indexed.
C. The data contained in a dictionary data type is a key/value pair.
D. The data stored in a dictionary data type is not sequenced or indexed.

Explanation:
A Python dictionary is a data type that stores data in the form of key/value pairs. It has the following characteristics:
Key/Value Pair (C): Each entry in a dictionary is a pair consisting of a unique key and a value. The key is used to access the corresponding value.
Not Sequenced or Indexed (D): Unlike lists or tuples, dictionaries do not maintain order for their entries (in versions prior to Python 3.7). Even though Python 3.7+ maintains insertion order, dictionaries are not considered indexed or sequenced in the traditional sense like lists, where elements are accessed via positional index.
Option A is incorrect because dictionary entries can be added, modified, or removed after the dictionary is created. Option B is incorrect because dictionaries are not accessed by a numeric index but rather by their keys.
Reference: Python Official Documentation: Details the nature of dictionaries, including their mutability and key/value structure.
Python Data Structures Guide: Explains dictionary operations and characteristics.

Question#3

What is an example of correct XML syntax?

A. <Device3><ho3tname>vMX1</hostname><Devices/>
B. <Devices><hostname>vMX1<De vices/X/hostname>
C. <Devices><hostname>vMX1<Devices/>
D. <Devices><hostname>vMX1</ho3tnameX/Device3>

Question#4

Which two programming languages are used for Junos on-box scripting? (Choose two.)

A. Perl
B. Ruby
C. SLAX
D. XSLT

Explanation:
Junos on-box scripting supports the following programming languages:
SLAX (C): SLAX (Structured Language for XML) is a scripting language designed specifically for Junos devices. It allows for easy manipulation of XML data, making it ideal for creating Junos scripts that interact with device configurations.
XSLT (D): XSLT (Extensible Stylesheet Language Transformations) is another language used for transforming XML documents into other formats. It is commonly used in Junos for transforming XML data into different views or outputs.
Options A (Perl) and B (Ruby) are not used for Junos on-box scripting. While these languages are popular in other contexts, Junos scripting relies heavily on XML-based languages like SLAX and XSLT.
Reference: Junos XML API and Scripting Guide: Describes the use of SLAX and XSLT for on-box scripting.
Juniper Networks Automation Documentation: Provides examples and best practices for using SLAX and XSLT in Junos scripting.

Question#5

Which process is responsible for JET automation requests?

A. jsrpd
B. mgd
C. rpd
D. jsd

Explanation:
The jsd (Junos Script Daemon) process is responsible for handling JET (Junos Extension Toolkit) automation requests. The JET framework allows for more programmable interactions with Junos devices, using APIs to manage and automate network functions. The jsd process handles these API requests, executes the relevant scripts, and interacts with the Junos configuration and operational states accordingly.
JET enables developers to write applications that interact with the Junos OS through APIs, providing a powerful tool for network automation, monitoring, and configuration management. The jsd process ensures that all JET-related operations are processed and executed properly.
Why the Other Options Are Incorrect:
A. jsrpd: This is not a process associated with JET automation requests.
B. mgd: The mgd process is responsible for handling management tasks like CLI commands and configuration changes but is not directly responsible for JET automation requests.
C. rpd: The rpd (Routing Protocol Daemon) manages routing protocols like BGP and OSPF but has no involvement in JET automation.
Reference from Juniper Documentation:
Juniper's documentation on JET and the jsd process outlines how this daemon manages script and API request processing for automation tasks.

Exam Code: JN0-224
Q & A: 66 Q&As         Updated:  Oct 17,2026

 

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Review Key Concepts

Review the technologies, products, processes, and practical skills covered by the current JN0-224 exam objectives.

Practice Scenario-Based Questions

Work through independently developed questions designed to strengthen your understanding of technical scenarios and decision-making.

Identify Knowledge Gaps

Use your results and the provided explanations to find weaker areas and focus your study more effectively.

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Review the Exam Scope

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