Juniper JN0-224専門トレーリング & JN0-224サンプル問題集

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Juniper JN0-224 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Network DevOps and Orchestration	10%	- Orchestration Tools 1. Integration with third-party tools 2. Overview of network orchestration platforms 3. Workflow automation principles - Continuous Integration and Deployment 1. Testing and validation automation 2. Version control for network configurations 3. CI/CD pipeline concepts for network devices
Topic 2: Platform Fundamentals	20%	- Junos OS Architecture and Components 1. Junos file systems and snapshots 2. Routing Engine and Packet Forwarding Engine 3. Junos daemons and processes - CLI and Configuration Basics 1. CLI operational and configuration modes 2. Configuration hierarchies and groups 3. Rescue configuration
Topic 3: Junos OS Automation Scripts	20%	- Commit, Op, Event, and SNMP Scripts 1. SNMP scripts for MIB extension 2. Event scripts for event-driven automation 3. Op scripts for operational commands 4. Commit scripts for configuration validation - SLAX and Python Scripting 1. Python for Junos scripting 2. SLAX language basics 3. Script library locations and execution
Topic 4: Network Automation	25%	- Configuration Management 1. Configuration data formats (XML, JSON, Set) 2. Configuration rollback and rescue 3. Configuration commits and confirmed commits - Automation Tools and Concepts 1. Jinja2 templates for configuration generation 2. PyEZ library for Python 3. Ansible and Ansible playbooks for Junos
Topic 5: Junos APIs and Data Formats	25%	- XML and NETCONF 1. XML API calls for configuration and operational data 2. XPath for data filtering and extraction 3. NETCONF protocol operations and sessions - JSON and REST API 1. JET (Juniper Extension Toolkit) overview 2. REST API concepts and Junos support 3. JSON data format usage in Junos

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JN0-224サンプル問題集 & JN0-224認定テキスト

JN0-224学習ガイドは、ユーザーの要求に十分に応えるため、メモリを分離するための少しの知識になりますが、それらを一緒に追加すると、時間を活用できる日が非常に多くあります。 JN0-224試験準備により、ユーザーはいつでもどこでもがれきの時間を使って勉強し、勉強と生活をより合理的に調整することができます。私たちのJN0-224シミュレーションマテリアルを選択するのは良い選択です。私たちのステップに従ってください。自分を信じて、あなたは完璧にそれをすることができます！

Juniper Automation and DevOps, Associate (JNCIA-DevOps) 認定 JN0-224 試験問題 (Q25-Q30):

質問 # 25
Which two statements about XML schema definition (XSD) files are correct? (Choose two.)

A. Every XML document must have an XSD file defined for it.
B. XSD files define all the elements in an XML document and the document XML hierarchy.
C. An XSD file is not an XML document.
D. XSD files ensure that everyone working with the XML document uses a common set of tags.

正解：B、D

解説：
XML Schema Definition (XSD) files are used to define the structure and data types of an XML document. They ensure that the XML document adheres to a specific structure by defining the allowed elements, attributes, and their data types, thereby enforcing a consistent format.
Option A is correct because XSD files define the elements, attributes, and structure (hierarchy) of an XML document.
Option D is correct because XSD files provide a standardized format, ensuring that all parties working with the XML document use the same set of tags and structure.
Option B (Every XML document must have an XSD file defined for it) is incorrect; not every XML document requires an XSD file, although it's beneficial for validation.
Option C (An XSD file is not an XML document) is incorrect because XSD files themselves are written in XML.
Supporting Reference:
W3C XML Schema Definition (XSD) Documentation: Explains the purpose and structure of XSD files, including their role in defining XML document schemas.

質問 # 26
Which two programming languages are used for Junos on-box scripting? (Choose two.)

A. SLAX
B. Ruby
C. Perl
D. XSLT

正解：A、D

解説：
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.

質問 # 27
Which two statements are valid regarding Junos automation? (Choose two.)

A. The mgd process handles JET API requests.
B. The jsd process handles XML API calls.
C. The mod process handles XML API calls.
D. The jsd process handles JET API requests.

正解：B、D

解説：
In Junos automation, several processes handle API requests, and understanding which process handles what is crucial:
jsd Process:
XML API Calls (A): The jsd process is responsible for handling XML API calls, which are a significant part of Junos automation. XML API allows for structured and standardized communication with Junos devices, enabling automation scripts to query and configure devices.
JET API Requests (C): The jsd process also handles JET (Junos Extension Toolkit) API requests. JET provides a more modern, programmable interface for interacting with Junos OS, and jsd is the process that manages these interactions.
mgd Process (Incorrect Option):
Not for JET API Requests: The mgd process handles general management operations, such as CLI commands and managing the configuration database, but it does not handle JET API requests. That role is fulfilled by jsd.
mod Process (Incorrect Option):
Not for XML API Calls: The mod process deals with managing chassis components and is not involved in handling XML API calls.
Reference:
Juniper Networks JET and XML API Documentation: Describes the roles of jsd in handling both XML and JET API requests.
Junos Automation and DevOps Documentation: Provides insights into how different processes interact with Junos APIs.

質問 # 28
Which two statements about NETCONF are correct? (Choose two.)

A. The default port for NETCONF is port 830.
B. NETCONF can use the default SSH port.
C. NETCONF cannot use the default SSH port.
D. The default port for NETCONF is port 930.

正解：A、B

解説：
NETCONF (Network Configuration Protocol) is used for network device management and can operate over SSH. The following are true about NETCONF:
Default Port 830 (B): By default, NETCONF uses port 830 for communication over SSH. This is the standard port reserved for NETCONF sessions.
Use of Default SSH Port (D): NETCONF can also operate over the standard SSH port (port 22) if configured to do so. This allows flexibility in network management scenarios where port 830 might not be available or used.
Options A and C are incorrect because they refer to incorrect or non-applicable port numbers for NETCONF.
Reference:
IETF RFC 6241: Specifies the use of NETCONF over SSH, including port details.
Juniper Networks NETCONF Documentation: Discusses the configuration and operation of NETCONF on Junos devices, including port usage.

質問 # 29
Which two statements are correct about the Junos REST API Explorer? (Choose two.)

A. The REST API Explorer is enabled by default on all Junos devices.
B. The REST API Explorer returns data only in XML format.
C. The REST API Explorer supports both GET and POST calls.
D. The REST API Explorer supports multiple RPC calls.

正解：C、D

解説：
The Junos REST API Explorer provides an interactive environment to explore and execute REST API calls. The correct statements are:
Supports GET and POST Calls (C): The REST API Explorer allows users to make both GET and POST requests, enabling retrieval and submission of data to the Junos device.
Supports Multiple RPC Calls (D): The REST API Explorer can execute multiple RPC (Remote Procedure Call) commands, allowing a wide range of operations to be performed directly through the interface.
Option A is incorrect because the REST API Explorer is not enabled by default; it must be enabled manually. Option B is incorrect because the REST API Explorer returns data in both XML and JSON formats, not just XML.
Reference:
Junos REST API Explorer Documentation: Provides details on the supported operations and how to use the Explorer for different types of requests.
Juniper Networks Documentation: Covers the setup and usage of the REST API Explorer.

質問 # 30
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