Score Higher on Verified JN0-223 | Automation and DevOps Associate (JNCIA-DevOps) Exam Questions with Answers

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:

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.

REST API requests can be made using various tools that support HTTP methods. Two common tools are:

cURL:A command-line tool that allows you to send HTTP requests, including GET, POST, PUT, and DELETE. It is widely used for testing and interacting with RESTful APIs due to its simplicity and flexibility.

Web Browser:Modern web browsers can be used to send HTTP GET requests directly by entering the URL into the address bar. Additionally, browser extensions like Postman or built-in developer tools can be used to construct and send more complex REST API requests.

Option B (NETCOfJF)is incorrect as it does not refer to a standard tool for making REST API requests.

Option D (SSH)is incorrect because SSH is a protocol used for secure remote login and command execution, not for sending REST API requests.

Supporting References:

cURL Documentation:Official cURL documentation provides extensive information on how to use cURL to interact with REST APIs.

Web Development and REST API Guides:Many web development resources and REST API documentation recommend using web browsers and tools like cURL for testing and interacting with APIs.