JN0-223 Practice Exams and Training Solutions for Certifications
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NEW QUESTION # 35
Which two statements are true about an XML schema document? (Choose two.)
- A. It is formatted as an XLT file.
- B. It is an authoritative source for operational and configuration XML.
- C. lit is formatted as an XSD file.
- D. It cannot be examined in the Junos CLI.
Answer: B,C
Explanation:
An XML schema document (XSD) is a key component in defining the structure and constraints of XML data used in various applications, including Junos:
* Authoritative Source (C): An XML schema document serves as the authoritative definition of the structure, content, and semantics of XML documents. It ensures that the XML data adheres to specific rules and formats, which is essential for both operational and configuration XML.
* XSD Format (D): XML schema documents are typically written in the XSD (XML Schema Definition) format, which provides a formal description of the XML document's structure.
Option A is incorrectbecause XML schemas are not formatted as XLT files (which are related to XSLT transformations), andOption B is incorrectbecause XML schemas can indeed be examined in the Junos CLI using appropriate commands.
* W3C XML Schema Definition Language (XSD) Documentation: Provides comprehensive information on the XSD format.
* Juniper Networks Documentation: Discusses the role of XML schemas in managing Junos configurations.
References:
NEW QUESTION # 36
Which process is responsible for JET automation requests?
- A. jsd
- B. rpd
- C. mgd
- D. jsrpd
Answer: A
Explanation:
Thejsd(Junos Script Daemon) process is responsible for handlingJET (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.
References 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.
NEW QUESTION # 37
As part of an application to manage network devices, you must query hundreds of network devices and return the unique set of IP prefixes by configured firewall filters. To accomplish this task you will require a mutable data type that contains unordered, unique elements.
Which Python data type will fulfill these requirements?
- A. tuples
- B. sets
- C. lists
- D. dictionaries
Answer: B
Explanation:
https://stackoverflow.com/questions/14193438/are-python-sets-mutable/14193582
NEW QUESTION # 38
Which development model is the classic approach to software development?
- A. Waterfall
- B. Scrum
- C. Lean
- D. Kanban
Answer: A
Explanation:
Reference: https://searchsoftwarequality.techtarget.com/definition/waterfall-model
NEW QUESTION # 39
Which Python operator tests two variables to see if they contain the same value?
- A. =
- B. != =
- C. !=
- D. = =
Answer: D
NEW QUESTION # 40
Exhibit.
Referring to the exhibit, what is the function of the register key?
- A. to set an input value for the juniper_junos_rpc module
- B. to define a variable containing the return value from the module
- C. to configure a global setting for the playbook
- D. to print a result to standard out
Answer: B
NEW QUESTION # 41
Exhibit.
Referring to the exhibit, which two statements about the script are correct? (Choose two.)
- A. The script retrieves the interface configuration in JSON.
- B. The script prints the name of each configured interface.
- C. The script prints interface information for each interface name.
- D. The script retrieves the interface configuration in XML
Answer: A,B
NEW QUESTION # 42
Exhibit
Referring to the exhibit, what will be two results of this playbook before saving it to a file? (Choose two.)
- A. to retrieve the candidate configuration
- B. to include everything but the system/services
- C. to include only the system/services
- D. retrieve the committed configuration
Answer: C,D
NEW QUESTION # 43
Exhibit.
Which command will solve the problem......
- A. pip install-eznc..
- B. pip install Juniper, junos..
- C. ansible-galaxy install..
- D. ansible-galaxy install ..
Answer: D
NEW QUESTION # 44
Which statement about the NETCONF content layer is true?
- A. It uses HTML for RPC request and response payloads.
- B. It uses YAML for RPC request and response payloads.
- C. It uses JSON for RPC request and response payloads.
- D. It uses XML for RPC request and response payloads.
Answer: D
Explanation:
The NETCONF protocol, used for network management, utilizes XML for encoding the RPC (Remote Procedure Call) requests and responses. XML is chosen because of its flexibility and ability to represent hierarchical data structures, making it well-suited for representing network configurations and states.
* Option Bis correct because XML is the standard format used for NETCONF RPC payloads.
* Options A (YAML), C (JSON), and D (HTML)are incorrect because these formats are not used by NETCONF for its RPC payloads.
Supporting References:
* RFC 6241 - NETCONF Protocol:This RFC describes the use of XML for encoding NETCONF messages.
NEW QUESTION # 45
Which two statements about Ansible are correct? (Choose two.)
- A. Ansible requires a license to unlock full functionality.
- B. Ansible is an open source project.
- C. Ansible modules must be written in Go.
- D. Ansible can use a single playbook to configure devices from multiple vendors.
Answer: B,D
NEW QUESTION # 46
Exhibit.
Which type of file is shown in the exhibit?
- A. Ansible playbook
- B. XML file
- C. XSLT file
- D. Puppet manifest
Answer: A
NEW QUESTION # 47
You must use Junos PyEZ to configure unique IP addresses on individual machines.
Which two features willpermit this requirement? (Choose). Ian SCP module
- A. a Jinja2 template
- B. a YAML data file
- C. an SCP module
- D. a BSON data file
Answer: A,B
Explanation:
To configure unique IP addresses on individual machines using Junos PyEZ, you can use the following features:
* YAML Data File (C): YAML files are used to store configuration data in a human-readable format.
They are often used in combination with Jinja2 templates to provide the data necessary for template rendering.
* Jinja2 Template (D): Jinja2 is a templating engine for Python that allows you to create dynamic templates. When used with Junos PyEZ, a Jinja2 template can be filled with data (such as IP addresses from a YAML file) to generate configuration snippets that are applied to different devices.
Options A (SCP module) and B (BSON data file)are not typically used with Junos PyEZ for this purpose.
* Junos PyEZ Documentation: Discusses the use of YAML files and Jinja2 templates for generating configurations.
* Jinja2 Templating Documentation: Provides details on how to create and use templates in Python scripts.
References:
NEW QUESTION # 48
Which two statements about Ansible are correct? (Choose two.)
- A. Separate host and group variable files can be used for larger environments
- B. Groups can be nested and a device is allowed to participate in multiple groups
- C. All Ansible host and group variables must be defined in the /etc/ansible/hosts directory
- D. Groups cannot be nested and a device is allowed to participate only a single group
Answer: B,C
NEW QUESTION # 49
What are two examples of XPath axes? (Choose two.)
- A. sibling
- B. grandchild
- C. grandparent
- D. parent
Answer: A,D
Explanation:
Reference: https://www.juniper.net/documentation/en_US/junos/topics/concept/junos-script- automation-xpathoverview.html
NEW QUESTION # 50
Exhibit.
Referring to the exhibit, where would the junos. conf file be found?
- A. a local directory on the Ansible control machine
- B. a directory on juniper__}uno3_conf
- C. a directory located on R1
- D. a directory on the device list in inventory_hostname
Answer: A
NEW QUESTION # 51
Which two statements are correct about a Python list data type? (Choose two.)
- A. The data contained in a list data type is not sequenced or indexed.
- B. The data contained in a list data type cannot be modified.
- C. The data contained in a list data type can be modified.
- D. The data contained in a list data type is sequenced and indexed starting from 0.
Answer: C,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 incorrectbecause lists are mutable, allowing modifications.Option D is incorrectbecause lists are indeed sequenced and indexed, unlike dictionaries.
* Python Official Documentation: Covers the properties of lists, including mutability and indexing.
* Python Data Structures Guide: Explains list operations and how to manipulate them.
References:
NEW QUESTION # 52
Which Ansible Playbook play parameter will prevent the system from copying the playbook to the Junos devices?
- A. serial
- B. environment
- C. gather_facts
- D. connection
Answer: D
NEW QUESTION # 53
Which two programming languages are used for Junos on-box scripting? (Choose two.)
- A. XSLT
- B. Perl
- C. Ruby
- D. SLAX
Answer: A,D
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.
* 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.
References:
NEW QUESTION # 54
Which two statements about NETCONF are true? (Choose two.)
- A. It uses the operations layer to lock the configuration of a Junos device.
- B. It uses the messages layer to lock the configuration of a Junos device.
- C. It uses the operations layer to commit the configuration of a Junos device.
- D. It uses the messages layer to commit the configuration of a Junos device.
Answer: A,C
Explanation:
NETCONF (Network Configuration Protocol) operates through different layers, with the operations layer being particularly important for managing configurations:
* Operations Layer (A & D): This layer is responsible for actions like locking and committing the configuration on a Junos device. The lock operation prevents other sessions from modifying the configuration, and the commit operation applies the configuration changes to the device.
Options B and Care incorrect because the messages layer handles the communication aspects, such as exchanging data between the client and server, not performing configuration operations like locking and committing.
* IETF RFC 6241 (NETCONF): Describes the protocol layers and their functions, with a focus on the operations layer.
* Juniper Networks NETCONF Documentation: Provides insights into how NETCONF operations are managed in Junos References:
NEW QUESTION # 55
Which two programing languages would be used for on-box scripting with Junos devices? (Choose two.)
- A. Python
- B. XSLT
- C. Ansible
- D. Puppet
Answer: A,B
NEW QUESTION # 56
Exhibit.
Which command produces the output shown in the exhibit?
- A. user@router> show version I display xml
- B. user@router# show version I display xzil
- C. user@router> show version I display json
- D. user@router> show version | display xml rpc
Answer: A
NEW QUESTION # 57
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Juniper JN0-223 (Automation and DevOps, Associate (JNCIA-DevOps)) Exam is a certification exam that focuses on the knowledge and skills required for automation and DevOps practices in a network infrastructure. JN0-223 exam is designed for network engineers, network administrators, and other IT professionals who want to enhance their skills in automation and DevOps practices. JN0-223 exam covers topics such as Python programming, YAML data serialization, Ansible automation, Git version control, and more.
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