Get Started: JN0-223 Exam [2025] Dumps Juniper PDF Questions
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NEW QUESTION # 35
Which two standard logical operators does XPath support? (Choose two.)
- A. AND
- B. IOR
- C. NOT
- D. MAMD
Answer: A,C
Explanation:
XPath is a query language used for selecting nodes from an XML document. It supports various logical operators that can be used to create complex queries. The two standard logical operators supported by XPath are:
NOT: This operator negates a condition, returning true if the condition is false, and vice versa.
AND: This operator is used to combine two conditions, and it returns true only if both conditions are true.
Option A (IOR) and Option D (MAMD) are not standard XPath operators.
Supporting Reference:
XPath Documentation: The W3C XPath specification lists the standard operators supported in XPath, including AND and NOT.
NEW QUESTION # 36
Which two statements are correct about Junose PyEZ Tables and Views? (Choose two.)
- A. The Juniper_Junos_config module enables the use of PyEZ Tables and Views.
- B. PyEZ Tables and Views are defined using YAML.
- C. PyEZ Tables and Views are defined using CSV.
- D. The juniper_junos_table module enables the use of PyEZ Tables and Views.
Answer: A,B
NEW QUESTION # 37
You want to make a list in Python to store data.
Which statement is the correct way to accomplish this task?
- A. L = "0, 1, 2, 3, 4, 5"
- B. L = [0, 1, 2, 3, 4, 5]
- C. L = {0, 1, 2, 3, 4, 5}
- D. L = (0, 1, 2, 3, 4, 5)
Answer: B
Explanation:
In Python, to create a list, you use square brackets []. The correct syntax to create a list containing the numbers 0 through 5 is:
L = [0, 1, 2, 3, 4, 5]
This statement creates a list object that stores the specified integers.
Other options are incorrect:
A defines a string, not a list.
B defines a set, which is an unordered collection with no duplicate elements.
D defines a tuple, which is an immutable sequence, not a list.
Reference:
Python Official Documentation: Discusses lists, sets, tuples, and their syntaxes.
Python Data Structures Guide: Provides examples of creating and manipulating lists.
NEW QUESTION # 38
Which type of on-box automation script is designed to run every time a user executes a configuration change?
- A. SNMP
- B. operation
- C. event
- D. commit
Answer: D
Explanation:
In Junos OS, acommit scriptis an on-box automation script that runs every time a configuration change is committed. Commit scripts are used to enforce configuration policies, validate configuration changes, or make automatic adjustments to configurations when certain conditions are met.
* Commit Script (C): Executes automatically during the commit process, ensuring that the new configuration adheres to specific rules or conventions before it is applied to the system.
Event, SNMP, and operation scriptsare used for other purposes in Junos automation but do not run automatically with every configuration change.
* Junos OS Automation Scripts Guide: Provides details on different types of scripts, including commit scripts, and their use cases.
* Juniper Networks Documentation: Offers examples and best practices for creating and using commit scripts.
References:
NEW QUESTION # 39
Which two programming languages have a NETCONF library supported by Juniper Networks? (Choose two.)
- A. Go
- B. Python
- C. Ruby
- D. SLAX
Answer: A,B
Explanation:
Juniper Networks supports NETCONF libraries for several programming languages, including:
* Python (B): Python has a well-supported NETCONF library calledncclient, which is widely used for automating network configurations across Junos devices.
* Go (C): Go also has a NETCONF library (go-netconf), which provides similar functionalities for managing Junos devices.
Ruby (A)andSLAX (D)do not have widely recognized or supported NETCONF libraries directly from Juniper Networks, making Python and Go the correct choices.
* Juniper Networks NETCONF Documentation: Lists supported programming languages and libraries for interacting with NETCONF on Junos devices.
* ncclientDocumentation: The primary Python library for working with NETCONF.
References:
NEW QUESTION # 40
Which Python operator tests two variables to see if they contain the same value?
- A. != =
- B. = =
- C. =
- D. !=
Answer: B
NEW QUESTION # 41
You want to make a list in Python to store data.
Which statement is the correct way to accomplish this task?
- A. L = "0, 1, 2, 3, 4, 5"
- B. L = [0, 1, 2, 3, 4, 5]
- C. L = {0, 1, 2, 3, 4, 5}
- D. L = (0, 1, 2, 3, 4, 5)
Answer: B
Explanation:
In Python, to create a list, you use square brackets[]. The correct syntax to create a list containing the numbers
0 through 5 is:
* L = [0, 1, 2, 3, 4, 5]
This statement creates a list object that stores the specified integers.
Other options are incorrect:
* Adefines a string, not a list.
* Bdefines a set, which is an unordered collection with no duplicate elements.
* Ddefines a tuple, which is an immutable sequence, not a list.
* Python Official Documentation: Discusses lists, sets, tuples, and their syntaxes.
* Python Data Structures Guide: Provides examples of creating and manipulating lists.
References:
NEW QUESTION # 42
What are two examples of XPath operators? (Choose two.)
- A. AND
- B.
- C. @
- D. IS
Answer: B,C
NEW QUESTION # 43
Which two statements are correct about a Python dictionary data type? (Choose two.)
- A. The data contained in a dictionary data type is a key/value pair.
- B. The data stored in a dictionary data type is not sequenced or indexed.
- C. The data contained in a dictionary data type cannot be removed once the dictionary has been created.
- D. The data stored in a dictionary data type is sequenced and indexed.
Answer: A,B
Explanation:
A Python dictionary is a data type that stores data in the form of key/value pairs. It has the following characteristics:
* Key/Value Pair (C): Each entry in a dictionary is a pair consisting of a unique key and a value. The key is used to access the corresponding value.
* Not Sequenced or Indexed (D): Unlike lists or tuples, dictionaries do not maintain order for their entries (in versions prior to Python 3.7). Even though Python 3.7+ maintains insertion order, dictionaries are not considered indexed or sequenced in the traditional sense like lists, where elements are accessed via positional index.
Option A is incorrectbecause dictionary entries can be added, modified, or removed after the dictionary is created.Option B is incorrectbecause dictionaries are not accessed by a numeric index but rather by their keys.
* Python Official Documentation: Details the nature of dictionaries, including their mutability and key
/value structure.
* Python Data Structures Guide: Explains dictionary operations and characteristics.
References:
NEW QUESTION # 44
Exhibit.
In the XML output shown in the exhibit. what is the full XPath for the IP address of the interface?
- A.
- B.
- C.
- D.
Answer: B
NEW QUESTION # 45
What is a valid JSON object?
- A. { ''vmx-1: 172.25.11.1''}
- B. { ''vmx-1'', ''172.25.11.1''}
- C. ''hostname:vmx-1''
- D. { ''hostname'' : ''vmx-1''}
Answer: D
NEW QUESTION # 46
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 server.
- C. The REST API application is stateful.
- D. The TCP session state is maintained by the client
Answer: A,D
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 # 47
Exhibit.
Referring to the exhibit, which XPath statement would retrieve the commit-user attribute in the candidate configuration?
- A. configuration/junos: commit-user
- B. configuration/@ junos: commit-user
- C. configuration:@ junos: commit-user
- D. configuration/commit-user
Answer: C
NEW QUESTION # 48
You are asked to write an automation script using Python. When you execute the script, you notice that your code sends an RpcTimeoutError error.
In this scenario, what would be the reason for this error?
- A. The Juniper device took too long to reply to the RPC call
- B. The Python script was not able to connect to the Juniper device
- C. The Juniper device rejects the connection
- D. The RPC syntax is incorrect
Answer: A
NEW QUESTION # 49
Which two statements about Ansible are true? (Choose two.)
- A. By default, Ansible core modules use NETCONF to connect to the remote host.
- B. By default, Ansible playbooks are executed locally.
- C. Ansible uses an agentless architecture.
- D. Ansible modules only execute a change if required -
Answer: A,C
Explanation:
Reference: https://www.juniper.net/documentation/en_US/junos-ansible/topics/concept/junos- ansibleoverview.html#:~:text=Ansible%20uses%20an%20agentless%20architecture,software%20on
%20the%20managed%20nodes.&text=Thus%2C%20Ansible%20users%20can%20get,of%20Python%
20to%20use% 20Ansible
NEW QUESTION # 50
Which statement is correct about the Junos XML API?
- A. The API uses HTTPS for securing off-box automation.
- B. The API uses NETCONF for off-box automation.
- C. The API only works for on-box automation tools.
- D. The API is only executed when a configuration is committed
Answer: B
NEW QUESTION # 51
Which Junos system process handles NETCONF automation commands?
- A. jsd
- B. snmpd
- C. mgd
- D. eventd
Answer: C
Explanation:
Reference: https://www.oreilly.com/library/view/automating-junos-
administration/9781491928875/ch01.html
NEW QUESTION # 52
What is an example of correct XML syntax?
- A. <Devices><hostname>vMX1</ho3tnameX/Device3>
- B. <Device3><ho3tname>vMX1</hostname><Devices/>
- C. <Devices><hostname>vMX1<Devices/>
- D. <Devices><hostname>vMX1<De vices/X/hostname>
Answer: D
NEW QUESTION # 53
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