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Juniper JN0-224 Exam Overview:

Certification Vendor:	Juniper Networks
Exam Name:	Automation and DevOps, Associate (JNCIA-DevOps)
Exam Number:	JN0-224
Related Certifications:	JNCIA-DevOps
Certificate Validity Period:	3 years
Real Exam Qty:	65
Exam Price:	USD 200
Exam Format:	Multiple-choice, Multiple-select
Passing Score:	Approximately 60-70% (variable based on exam form)
Exam Duration:	90 minutes
Available Languages:	English, Japanese
Sample Questions:	Juniper JN0-224 Sample Questions
Exam Way:	Pearson VUE (Online or Test Center)
Pre Condition:	None (Associate-level entry exam)
Official Syllabus URL:	https://www.juniper.net/us/en/training/certification/tracks/devops/jncia-devops.html

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Juniper JN0-224 Exam Syllabus Topics:

Topic	Details
Topic 1	NETCONF XML API: This domain focuses on XML syntax, XPath expressions, NETCONF protocol, and XML API functionality for programmatic device configuration and communication.
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	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 4	Data Serialization: This domain addresses YAML and JSON formats used for structured data representation and exchange in network automation workflows.
Topic 5	Rest API: This domain covers Junos REST API implementation, REST API Explorer tool, and cURL usage for HTTP-based device management and configuration.

Juniper Automation and DevOps, Associate (JNCIA-DevOps) Sample Questions (Q10-Q15):

NEW QUESTION # 10
Which two tools would you use to make REST API requests? (Choose two.)

A. cURL
B. SSH
C. Web browser
D. NETCOfJF

Answer: A,C

Explanation:
REST API requests can be made using various tools that support HTTP methods. Two common tools are:
cURL: A command-line tool that allows you to send HTTP requests, including GET, POST, PUT, and DELETE. It is widely used for testing and interacting with RESTful APIs due to its simplicity and flexibility.
Web Browser: Modern web browsers can be used to send HTTP GET requests directly by entering the URL into the address bar. Additionally, browser extensions like Postman or built-in developer tools can be used to construct and send more complex REST API requests.
Option B (NETCOfJF) is incorrect as it does not refer to a standard tool for making REST API requests.
Option D (SSH) is incorrect because SSH is a protocol used for secure remote login and command execution, not for sending REST API requests.
Supporting Reference:
cURL Documentation: Official cURL documentation provides extensive information on how to use cURL to interact with REST APIs.
Web Development and REST API Guides: Many web development resources and REST API documentation recommend using web browsers and tools like cURL for testing and interacting with APIs.

NEW QUESTION # 11
Which statement about the NETCONF content layer is true?

A. It uses XML for RPC request and response payloads.
B. It uses JSON for RPC request and response payloads.
C. It uses HTML for RPC request and response payloads.
D. It uses YAML for RPC request and response payloads.

Answer: A

NEW QUESTION # 12
Which two statements are correct about a Python list data type? (Choose two.)

A. The data contained in a list data type is sequenced and indexed starting from 0.
B. The data contained in a list data type cannot be modified.
C. The data contained in a list data type is not sequenced or indexed.
D. The data contained in a list data type can be modified.

Answer: A,D

Explanation:
Python lists have the following characteristics:
Modifiable Data (A): Lists are mutable, meaning you can change, add, or remove elements after the list has been created.
Sequenced and Indexed (B): Lists maintain the order of their elements and are indexed starting from 0. This means you can access elements by their position in the list.
Option C is incorrect because lists are mutable, allowing modifications. Option D is incorrect because lists are indeed sequenced and indexed, unlike dictionaries.
Reference:
Python Official Documentation: Covers the properties of lists, including mutability and indexing.
Python Data Structures Guide: Explains list operations and how to manipulate them.

NEW QUESTION # 13
Which development model is the classic approach to software development?

A. Lean
B. Scrum
C. Waterfall
D. Kanban

Answer: C

NEW QUESTION # 14
Which two statements about the REST API are correct? (Choose two.)

A. The REST API application is stateless.
B. The TCP session state is maintained by the client
C. The REST API application is stateful.
D. The TCP session state is maintained by the server.

Answer: A,B

Explanation:
REST (Representational State Transfer) is an architectural style for designing networked applications, and its key principles include:
Statelessness (B): Each request from the client to the server must contain all the information needed to understand and process the request. The server does not store any session state between requests, meaning each request is independent and does not rely on previous ones.
TCP Session State (C): While REST itself is stateless, the underlying TCP connection's state, such as keeping the connection alive or managing retries, is handled by the client. The server does not retain information about the TCP connection beyond the processing of the individual request.
Options A and D are incorrect because they imply that the REST API is stateful, which contradicts the stateless nature of REST.
Reference:
REST API Design Principles: Describes the stateless nature of REST and the responsibility of clients in managing session state.
Web Development Documentation: Discusses how REST APIs operate, focusing on statelessness and client-server interaction.

NEW QUESTION # 15
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