Pass Exam With Full Sureness - JN0-223 Dumps with 66 Questions
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The JN0-223 certification exam covers a wide range of topics, including automation tools and technologies, continuous integration and delivery (CI/CD), software development methodologies, and DevOps culture and practices. JN0-223 exam is designed to test the candidate's ability to apply these concepts and technologies in real-world scenarios.
NEW QUESTION # 21
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 is sequenced and indexed starting from 0.
- D. The data contained in a list data type can be modified.
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 # 22
Which Python operator tests two variables to see if they contain the same value?
- A. != =
- B. !=
- C. =
- D. = =
Answer: D
NEW QUESTION # 23
What is a valid JSON object?
- A. { ''hostname'' : ''vmx-1''}
- B. { ''vmx-1: 172.25.11.1''}
- C. { ''vmx-1'', ''172.25.11.1''}
- D. ''hostname:vmx-1''
Answer: A
NEW QUESTION # 24
Which two programming languages are used for Junos on-box scripting? (Choose two.)
- A. Perl
- B. XSLT
- C. Ruby
- D. SLAX
Answer: B,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 # 25
Exhibit.
Which type of file is shown in the exhibit?
- A. Ansible playbook
- B. XML file
- C. Puppet manifest
- D. XSLT file
Answer: A
NEW QUESTION # 26
An Ansible playbook executes which type of module?
- A. Puppet
- B. Python
- C. YAML
- D. SaltStack
Answer: C
NEW QUESTION # 27
Which set of DevOps CAUMS values is correct?
- A. Control, Automation, Learn, Methodology, and Support
- B. Coordinate, Acculturation. Lean, Mentoring, and Society
- C. Culture Automation, Lean, Measurement, and Sharing
- D. Continuous, Assimilation, Learn, Morning, and Scientific
Answer: A
NEW QUESTION # 28
Exhibit
Referring to the exhibit, what will be two results of this playbook before saving it to a file? (Choose two.)
- A. retrieve the committed configuration
- B. to include everything but the system/services
- C. to include only the system/services
- D. to retrieve the candidate configuration
Answer: A,C
NEW QUESTION # 29
YAML uses which two data structures? (Choose two.)
- A. sequences
- B. arrays
- C. mappings
- D. objects
Answer: A,C
Explanation:
YAML (YAML Ain't Markup Language) primarily uses two data structures:
* Mappings: These are key-value pairs, similar to dictionaries or hashes in programming languages. In YAML, mappings are used to represent associative arrays or objects. They are defined with a colon (:) separating the key from the value.
Example:
key: value
name: John Doe
* Sequences: These are ordered lists of items, equivalent to arrays or lists in other programming languages. Sequences in YAML are denoted by a dash (-) followed by a space and then the item.
Example:
fruits:
- Apple
- Banana
- Cherry
* Mappings(B) allow you to define relationships between keys and values, making it possible to represent more complex data structures like dictionaries or objects.
* Sequences(C) allow you to represent ordered collections, which is important for listing elements that must maintain a specific order.
Detailed Explanation:YAML is often used in configuration files and data serialization in DevOps environments, such as in Ansible playbooks, Kubernetes manifest files, and CI/CD pipeline definitions.
Its simplicity and human-readable format make it a popular choice for these applications.
* YAML Official Documentation: YAML's specification outlines these core data structures.
* Juniper Automation and DevOps Documentation: Provides best practices for using YAML in network automation scripts and configuration management.
References:
NEW QUESTION # 30
Exhibit.
Referring to the exhibit, which XML XPath expression will only show the IP address XML elements?
- A. //address/name
- B. //name
- C. /address/name
- D. /name
Answer: A
Explanation:
https://www.w3schools.com/xml/xpath_syntax.asp
NEW QUESTION # 31
Which two Python packages use NETCONF to interact with Junos devices? (Choose two.)
- A. pyyaml
- B. numpy
- C. junos-eznc
- D. jsnapy
Answer: C,D
NEW QUESTION # 32
Which two statements regarding the DevOps methodology are correct? (Choose two.)
- A. Code changes should be few and manually tested.
- B. A goal is to make development, test, and production environments as identical as possible
- C. Communication between people should be minimized during the process as much as possible
- D. Feedback should be analyzed at each stage of the process.
Answer: B,D
NEW QUESTION # 33
While conducting an automation test, you must issue a command using the curl tool to request the text formatted output from the show interfaces ge-0/0/0 terse command.
In this scenario, which command would you use?
- A. curl ""u "lab:lab123" "http://10.210.10.155:3000/rpc/get-interface-information@format=text?interface-name=ge-0/0/0&terse="
- B. curl ""u "lab:lab123" "http://10.210.10.155:3000/rpc/get-interface-information@interface-name=ge-0/0/0?terse="
- C. curl ""u "lab:lab123" "http://10.210.10.155:3000/rpc/get-interface-information&format=text&interface-name=ge-0/0/0&terse="
- D. curl ""u "lab:lab123" "http://10.210.10.155:3000/rpc/get-interface-information@format=text&interface-name=ge-0/0/0?terse="
Answer: A
NEW QUESTION # 34
Which cur1 command will successfully retrieve interface information from a Juniper device?
- A. cur1 -''lab:lab123'' http://10.200.1.1:3443/rpc/get-interface-information -X POST
- B. cur1 -''lab:lab123'' http://10.200.1.1:8443/rpc/get-interface-information -X GET
- C. cur1 -''lab:lab123'' http://10.200.1.1:3000/rpc/get-interface-information -X GET
- D. cur1 -''lab:lab123'' http://10.200.1.1:3443/rpc/get-interface-information -X POST
Answer: A
NEW QUESTION # 35
Which two PyEZ object methods are included by default when using a Python context manager? (Choose two.)
- A. pdiff() and diff()
- B. open() and close()
- C. |load() and commit ()
- D. lock () and unlock (>
Answer: B,D
Explanation:
When using a Python context manager with Junos PyEZ, two key methods are automatically included:
* open()andclose(): These methods are used to establish and terminate a connection to a Junos device.
When you use a context manager (thewithstatement),open()is called when entering the block, andclose() is called when exiting, ensuring the connection is properly managed.
* lock()andunlock(): These methods are used to lock the configuration database to prevent other users from making changes while you are working on it. When using a context manager,lock()is called at the start of the block, andunlock()is called at the end, ensuring safe configuration changes.
Supporting References:
* Junos PyEZ Documentation:The documentation explains how context managers work in PyEZ, including the automatic invocation ofopen(),close(),lock(), andunlock()methods.
NEW QUESTION # 36
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?
- A. XML API
- B. REST API
- C. JETAPI
- D. RPC API
Answer: B
NEW QUESTION # 37
Which process is responsible for XML automation requests?
- A. rpd
- B. jsrpd
- C. jsd
- D. mgd
Answer: D
Explanation:
Themgd(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. Themgdprocess parses the XML data and applies the necessary configuration or retrieves the requested information.
* Option Bis correct becausemgdis 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 References:
* Juniper Networks Management Daemon (mgd) Documentation:Provides an overview of the responsibilities of themgdprocess, including handling XML requests.
NEW QUESTION # 38
Which statement about element nodes is correct?
- A. Element nodes only consist of a single line of code
- B. Element nodes cannot be nested in other element nodes
- C. Only a single root element node is allowed
- D. Only the root element node can contain other element nodes
Answer: C
Explanation:
https://en.wikipedia.org/wiki/Root_element#:~:text=Each%20XML%20document%20has%20exactly, is%20the%20element.
NEW QUESTION # 39
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