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Juniper JN0-223 Exam Questions
- Topic 1: Junos Automation Stack and DevOps Concepts: This section is about the core concepts and general features associated with Junos Platform automation and DevOps practices.
- Topic 2: NETCONF/XML API: This section is about how to become well-versed in the core concepts and functionalities related to XML, the XML API, XPath, and the Network Configuration Protocol (NETCONF).
- Topic 3: Data Serialization: This section is about how to understand the principles, advantages, and operations of data serialization. This encompasses key formats like YAML and JavaScript Object Notation (JSON), etc.
- Topic 4: Python/PyEZ: This section is about how to know Python and PyEZ tools designed for automating Junos OS devices and networks. This includes learning Python syntax and core concepts, using Junos Snapshot Administrator (JSNAPy) for managing configurations, and leveraging Jinja2.
- Topic 5: Rest API: This section covers the concepts, benefits, and functions of the Junos REST API. This involves understanding the Junos REST API's capabilities and its Explorer tool, as well as how to utilize Client URL (cURL) for interacting with the API.
Free Juniper JN0-223 Exam Actual Questions
Note: Premium Questions for JN0-223 were last updated On Apr. 17, 2025 (see below)
A REST API client uses which two HTTP methods to execute RPC requests on the server? (Choose two.)
REST APIs use HTTP methods to perform different operations on resources. In the context of RPC (Remote Procedure Call) requests:
GET: This method is used to retrieve data from the server. In a REST API, it is commonly used to fetch information about resources, such as the current configuration or operational state.
POST: This method is used to send data to the server to create or update a resource. In the context of RPC, POST is often used to execute a procedure on the server that may result in the modification of a resource or triggering of an action.
Options B (HEAD) and D (CONNECT) are not typically used for executing RPC requests:
HEAD is similar to GET but only retrieves the headers, not the body of the response.
CONNECT is used to establish a tunnel to the server, primarily for SSL-encrypted communication, and is not commonly associated with RESTful RPC operations.
Supporting Reference:
Juniper Networks REST API Documentation: The documentation provides detailed information about the use of HTTP methods in Juniper's RESTful services.
'RESTful Web Services' by Leonard Richardson and Sam Ruby: This book explains the principles of REST and how different HTTP methods, particularly GET and POST, are used to interact with RESTful APIs.
Which process is responsible for JET automation requests?
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.
Your organization is developing an application to automate management of Junos network appliances. You want to use the existing PyEZ libraries to improve the development process. Which API would satisfy this requirement?
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?
Exhibit.
Referring to the exhibit, which statement about REST is correct?
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