JN0-223リアルな試験問題JN0-223練習問題集 [Q36-Q53]

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JN0-223リアルな試験問題JN0-223練習問題集

厳密検証されたJN0-223試験問題集と解答で無料提供のJN0-223問題と正解付き

質問 # 36
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/commit-user
  • C. configuration/junos: commit-user
  • D. configuration/@ junos: commit-user

正解：A

解説：
.


質問 # 37
A REST API client uses which two HTTP methods to execute RPC requests on the server? (Choose two.)

  • A. CONNECT
  • B. GET
  • C. POST
  • D. HEAD

正解：B、C

解説：
REST APIs use HTTP methods to perform different operations on resources. In the context of RPC (Remote Procedure Call) requests:
* GET:This method is used to retrieve data from the server. In a REST API, it is commonly used to fetch information about resources, such as the current configuration or operational state.
* POST:This method is used to send data to the server to create or update a resource. In the context of RPC, POST is often used to execute a procedure on the server that may result in the modification of a resource or triggering of an action.
Options B (HEAD) and D (CONNECT) are not typically used for executing RPC requests:
* HEADis similar to GET but only retrieves the headers, not the body of the response.
* CONNECTis used to establish a tunnel to the server, primarily for SSL-encrypted communication, and is not commonly associated with RESTful RPC operations.
Supporting References:
* Juniper Networks REST API Documentation:The documentation provides detailed information about the use of HTTP methods in Juniper's RESTful services.
* "RESTful Web Services"by Leonard Richardson and Sam Ruby: This book explains the principles of REST and how different HTTP methods, particularly GET and POST, are used to interact with RESTful APIs.


質問 # 38
Exhibit.

Which command produces the output shown in the exhibit?

  • A. user@router> show version | display xml rpc
  • B. user@router> show version I display xml
  • C. user@router# show version I display xzil
  • D. user@router> show version I display json

正解：B


質問 # 39
Which two statements about NETCONF are correct? (Choose two.)

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

正解：A、D

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 incorrectbecause they refer to incorrect or non-applicable port numbers for NETCONF.
* 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.
References:


質問 # 40
What will determine which data serialization format is used for interfacing with a system?

  • A. the operating system
  • B. IDE specifications
  • C. the system's API
  • D. programming language version

正解：C


質問 # 41
Exhibit.

Referring to the exhibit, which statement about REST is correct?

  • A. The device is configured to allow only two simultaneous REST connections.
  • B. The device is configured to allow HTTP connections on port 3030.
  • C. The device is configured to allow connections from the REST API Explorer
  • D. The device is configured to allow HTTPS connections on port 3443.

正解：D


質問 # 42
Which two statements about Junos automation are correct? (Choose two.)

  • A. Junos automation allows for device provisioning through the console port.
  • B. Junos automation does not allow for device provisioning throuqh the console port.
  • C. The Junos REST API client is on-box.
  • D. The Junos REST API client is off-box.

正解：A、C

解説：
* A. The Junos REST API client is on-box:The Junos REST API ison-box, meaning it is hosted directly on the Junos OS device. This allows you to interact with the device through RESTful API calls without needing an external client to act as an intermediary. With the on-box REST API, users can manage and automate configuration and operational tasks directly from the Junos device itself using HTTP/HTTPS protocols. This simplifies automation and remote management since the API server is embedded within the device.
Key Automation Capabilities of On-box REST API:
* Supports configuration, monitoring, and operational commands.
* Allows for direct device interaction via tools like curl, or through custom-built automation scripts.


質問 # 43
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. dictionaries
  • C. lists
  • D. sets

正解：D

解説：
https://stackoverflow.com/questions/14193438/are-python-sets-mutable/14193582


質問 # 44
Exhibit.

Referring to the exhibit, which two statements are correct? (Choose two.)

  • A. The module in the first task in maintained by Ansible.
  • B. The module in the first task is maintained by Juniper.
  • C. The Ansible play in the exhibit modifies and outputs the device hostname.
  • D. The Ansible play in the exhibit outputs but does not modify the device hostname.

正解：B、D


質問 # 45
Exhibit.

Referring to the exhibit, which two statements about the script are correct? (Choose two.)

  • A. The script prints interface information for each interface name.
  • B. The script retrieves the interface configuration in JSON.
  • C. The script retrieves the interface configuration in XML
  • D. The script prints the name of each configured interface.

正解：B、D


質問 # 46
Exhibit.

Referring to the exhibit, which two statements are correct? (Choose two)

  • A. The Junos configuration database is automatically locked and unlocked.
  • B. The connection to the Junos device is automatically opened and closed
  • C. The Junos configuration database is explicitly locked and unlocked
  • D. The connection to the Junos device is explicitly opened and closed

正解：A、C


質問 # 47
Exhibit.

Referring to the exhibit, which statement about REST is correct?

  • A. The device is configured to allow only two simultaneous REST connections.
  • B. The device is configured to allow HTTP connections on port 3030.
  • C. The device is configured to allow connections from the REST API Explorer
  • D. The device is configured to allow HTTPS connections on port 3443.

正解：D


質問 # 48
Which two processes does Junos automation use? (Choose two.)

  • A. chassisd
  • B. jsd
  • C. dcd
  • D. mgd

正解：B、D

解説：
Reference: https://coggle.it/diagram/XW0atWn5-1ccZJer/t/junos-automation-stack


質問 # 49
Which feature is used in XML to ensure that all attributes and elements have unique names?

  • A. namespace
  • B. XPath
  • C. selectors
  • D. predicate

正解：B


質問 # 50
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/commit-user
  • C. configuration/junos: commit-user
  • D. configuration/@ junos: commit-user

正解：A

解説：
.


質問 # 51
Which XML shorthand notation is used when no data exists between tags?

  • A. <data+>
  • B. </data/>
  • C. <data*>
  • D. <data/>

正解：D


質問 # 52
Which two statements are correct about a Python list data type? (Choose two.)

  • A. The data contained in a list data type cannot be modified.
  • B. The data contained in a list data type is not sequenced or indexed.
  • 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.

正解：C、D

解説：
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.


質問 # 53
......

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