HomeJuniperJNCIS-DevOpsPrepare for the JN0-423 JNCIS-DevOps Exam with DumpsBase JN0-423 Dumps (V8.02) – Check JN0-423 Free Dumps (Part 1, Q1-Q40) First
May 11, 2026

Prepare for the JN0-423 JNCIS-DevOps Exam with DumpsBase JN0-423 Dumps (V8.02) – Check JN0-423 Free Dumps (Part 1, Q1-Q40) First

If deciding to take the Automation and DevOps, Specialist (JNCIS-DevOps) JN0-423 exam, you can choose DumpsBase as your learning partner. The Juniper JN0-423 exam is available to verify your understanding of the application of scripting tools such as PyEZ, Python, and Ansible to Junos devices and networks. Based on these knowledge points, DumpsBase JN0-423 dumps (V8.02), with 180 practice questions and answers, are designed to reflect the real exam format and key knowledge areas. With DumpsBase JN0-423 dumps (V8.02), you can practice real exam-style questions, understand common question patterns, and improve your confidence before test day. Our JN0-423 dumps (V8.02) are especially useful for professionals who want to save time, review important topics quickly, and identify weak areas during preparation.

Before downloading the dumps, you can check the JN0-423 free dumps (Part 1, Q1-Q40) of V8.02 below:

1. A developer is building a gRPC-based automation interface. The client and server must share strongly typed message definitions and service methods.

Which artifact is most directly involved?
2. A YANG model needs a node that groups related child nodes, such as BGP global settings, but the grouping node itself should not hold a direct value.

Which YANG construct is most appropriate?
3. A network automation system needs to modify a Junos configuration path through a model-driven gNMI interface.

Which gNMI operation should be used?
4. An Ansible playbook uses the same Junos NTP configuration template for all devices. Core routers and access switches require different NTP server values.

Where should the group-specific values be stored?
5. An Ansible playbook uses one Jinja2 template to generate Junos interface configuration for multiple sites. The template renders correct interface names, but one site receives the wrong VLAN IDs.

Where should the engineer check first?
6. A network automation application must update a Junos configuration path through a model-driven gNMI interface.

Which gNMI operation should be used?
7. A telemetry collector connects successfully to a Junos device with gNMIc, but interface counter updates are not received. The target path was copied from documentation for a different platform.

Which problem is most likely?
8. A Junos administrator wants to enforce interface naming standards whenever an engineer commits a configuration change. Noncompliant configuration should be rejected before activation.

Which mechanism should be used?
9. A PyEZ script loads configuration changes to a Junos device but should not activate them until validation succeeds and the script explicitly commits.

Which Junos behavior supports this workflow?
10. A developer chooses Protocol Buffers for a gRPC-based automation interface instead of plain text message formats.

Which characteristic explains this choice?
11. An Ansible workflow deploys Junos configuration successfully. The team now wants an automated method to confirm that expected operational values exist after deployment.

Which addition best satisfies this requirement?
12. A Junos administrator wants automation to insert a missing required configuration statement during commit processing when a specific hierarchy is absent.

Which script type can inspect and modify the candidate configuration during this process?
13. A network automation team uses Terraform to manage Junos-related infrastructure. Before applying changes, they want to review which resources will be created, modified, or removed.

Which command should they run?
14. An Ansible automation repository contains a workflow that defines ordered tasks for loading Junos configuration, committing changes, and running post-checks.

Which Ansible object defines this workflow?
15. A YANG model represents multiple interfaces. Each interface entry must be uniquely identified by its interface name.

Which YANG construct is most appropriate?
16. A Junos automation team wants to package common Ansible tasks, templates, default variables, files, and handlers so the same logic can be reused by several playbooks.

Which Ansible structure should be used?
17. An automation tool needs to interact with Junos configuration loading, validation, and commit processing through the normal management plane.

Which Junos process is most closely associated with this workflow?
18. A YANG model defines an interface administrative mode that can only be one of a fixed set of named values, such as enabled or disabled.

Which YANG type is most appropriate?
19. An operator frequently runs several Junos show commands to troubleshoot BGP and interface errors. The team wants to provide a single custom command that collects and formats the information on demand.

Which script type is most appropriate?
20. A YANG model includes this node:

leaf description {

type string;

}

What does this represent?
21. An architect must decide whether to use MGD-based automation or JSD/JET-based automation. The application requires deeper Junos extensibility and service-process-based interaction, not just configuration loading and commit.

Which option is most appropriate?
22. An automation workflow uses Ansible to render Junos configuration and then validates post-change BGP state against expected values.

Which combination best matches this workflow?
23. A YANG model uses the same group of leaf nodes under multiple protocol neighbor definitions. The engineer wants to define those nodes once and reuse them.

Which YANG statement should define the reusable structure?
24. A Junos telemetry design uses Telegraf to collect metrics, InfluxDB to store time-series data, and Grafana for dashboards.

Which stack is being used?
25. A network engineer compares SNMP polling with gNMI-based telemetry. The goal is structured, model-driven data using paths based on YANG models.

Which advantage is most associated with gNMI?
26. A Junos telemetry pipeline uses Telegraf to collect metrics and InfluxDB to store time-series data. Operations teams need dashboards to visualize the collected telemetry.

Which component provides the dashboard function in the TIG stack?
27. A telemetry workflow uses gNMIc to connect to Junos devices and subscribe to interface statistics. gNMIc initiates the request and receives telemetry updates from the devices.

What role is gNMIc performing?
28. Operators frequently run multiple Junos show commands to troubleshoot interface errors and BGP status. The team wants a single custom operational command that operators can run manually.

Which script type is best suited for this task?
29. A Junos telemetry subscription should send interface counter updates every 30 seconds, even if the counter values have not changed.

Which gNMI subscription mode should be used?
30. A Junos device should automatically collect diagnostic output when a routing adjacency goes down. The action should be triggered by the system event, not by a manual operator command or a configuration commit.

Which combination best fits this requirement?
31. An Ansible project stores Junos login credentials in variable files. The team wants these values encrypted in the repository but still available to playbooks during execution.

Which feature should be used?
32. A Junos device should automatically collect diagnostic output when an interface-down event occurs. The script should not require manual execution and should not run during every commit.

Which script type should be used?
33. A network team wants to verify that BGP neighbors remain established after a maintenance change. They need to compare pre-change and post-change Junos operational state.

Which tool is most appropriate?
34. A network operations team wants Junos devices to stream interface counter updates to a collector using OpenConfig paths. The data should continue flowing without the collector repeatedly sending one-time requests.

Which gNMI operation should be used?
35. A Junos device must run a script only when a specific system event occurs, such as an interface-down event. The script should not run manually and should not run during every commit.

What must be configured to trigger the script?
36. An automation engineer is designing a workflow to load candidate configuration onto Junos devices, run validation, and commit the changes only if validation succeeds. The workflow must use the normal Junos configuration database and commit process.

Which automation category best matches this design?
37. A Junos administrator wants a custom command that operators can run manually to collect troubleshooting data without changing configuration.

Which script type should be used?
38. A network automation team uses Terraform with a Juniper-related provider to manage network infrastructure resources. Before applying any changes, the team wants to see which resources Terraform will create, update, or delete.

Which command should be used?
39. A company operates Junos and non-Junos devices. The automation platform should use a common vendor-neutral YANG model to retrieve interface and routing state.

Which technology best supports this goal?
40. A company requires all Junos devices to include a specific syslog destination and accounting configuration. If either hierarchy is missing, the commit must be rejected before the configuration becomes active.

Which Junos automation mechanism should be used?

 

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