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JN0-224 Premium Exam & JN0-224 Certification Practice

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Juniper JN0-224 Exam Syllabus Topics:
TopicDetails
Topic 1
  • Python
  • PyEZ: This domain examines Python programming with PyEZ library for Junos automation, including JSNAPy, Jinja2 templates, RPC calls, exception handling, and device configuration management.
Topic 2
  • Junos Automation Stack and DevOps Concepts: This domain covers fundamental automation tools, frameworks, APIs, and DevOps culture applicable to Junos platform operations and network management.
Topic 3
  • NETCONF
  • XML API: This domain focuses on XML syntax, XPath expressions, NETCONF protocol, and XML API functionality for programmatic device configuration and communication.
Topic 4
  • Rest API: This domain covers Junos REST API implementation, REST API Explorer tool, and cURL usage for HTTP-based device management and configuration.
Topic 5
  • Data Serialization: This domain addresses YAML and JSON formats used for structured data representation and exchange in network automation workflows.

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Juniper Automation and DevOps, Associate (JNCIA-DevOps) Sample Questions (Q42-Q47):NEW QUESTION # 42
Using the set rest control configuration command, what are two ways to control access to the REST API running on a Junos device? (Choose two.)
  • A. Limit the number of simultaneous connections.
  • B. Limit management access to specific users.
  • C. Limit access to only certain source IP addresses
  • D. Limit management access to only SSH
Answer: A,C
Explanation:
When using the set rest control configuration command on a Junos device, you have several options to control access to the REST API. Two effective methods include:
Limiting the number of simultaneous connections: This ensures that the REST API is not overwhelmed by too many concurrent requests, which could potentially lead to performance issues or denial of service.
Limiting access to certain source IP addresses: This method restricts API access to specific IP addresses, enhancing security by ensuring that only trusted sources can interact with the REST API.
Option A (Limit management access to only SSH) is unrelated to controlling REST API access specifically.
Option B (Limit management access to specific users) might be relevant in a different context, but it is not directly tied to REST API control via the specific command mentioned.
Supporting Reference:
Juniper Networks REST API Documentation: This documentation explains how to configure and control access to the REST API on Junos devices, including connection limits and IP-based access control.

NEW QUESTION # 43
Which two data structures are used in JSON? (Choose two.)
  • A. tuples
  • B. arrays
  • C. dictionaries
  • D. objects
Answer: B,D
Explanation:
In JSON (JavaScript Object Notation), the two primary data structures are:
Objects: These are collections of key-value pairs, where each key is a string, and the value can be a string, number, array, boolean, or another object. In Python, this structure is analogous to a dictionary.
Arrays: These are ordered lists of values, where each value can be of any data type, including another array or object. In Python, this structure is similar to a list.
Option A (tuples) and Option D (dictionaries) refer to Python-specific data structures and are not directly used in JSON.
Supporting Reference:
JSON Documentation and Tutorials: JSON objects and arrays are the standard data structures used in this format, as described in many tutorials and the official JSON documentation.

NEW QUESTION # 44
What is an example of correct XML syntax?
  • A. <Devices><hostname>vMX1</ho3tnameX/Device3>
  • B. <Device3><ho3tname>vMX1</hostname><Devices/>
  • C. <Devices><hostname>vMX1<Devices/>
  • D. <Devices><hostname>vMX1<De vices/X/hostname>
Answer: D

NEW QUESTION # 45
Which HTTP status code indicates a response to a successful request?
  • A. 0
  • B. 1
  • C. 2
  • D. 3
Answer: B
Explanation:
Explanation
Reference: https://www.juniper.net/document ... ce-sdk/13.1/apiref/ com.juniper.junos_space.sdk.help/html/reference/Commonbehav.html

NEW QUESTION # 46
Which process is responsible for XML automation requests?
  • A. mgd
  • B. rpd
  • C. jsrpd
  • D. jsd
Answer: A
Explanation:
The mgd (Management Daemon) process in Junos is responsible for handling XML automation requests. This daemon manages the configuration and operational commands received via NETCONF, which uses XML for data exchange. The mgd process parses the XML data and applies the necessary configuration or retrieves the requested information.
Option B is correct because mgd is the process that handles XML-based requests in Junos.
Options A (jsrpd), C (rpd), and D (jsd) are incorrect because they are responsible for different functions, such as routing protocols and services, not XML automation.
Supporting Reference:
Juniper Networks Management Daemon (mgd) Documentation: Provides an overview of the responsibilities of the mgd process, including handling XML requests.

NEW QUESTION # 47
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