A network engineer is designing a monitoring solution for a Junos device. The solution needs to collect configuration changes and operational state data. The engineer wants to use a programmatic interface that provides a structured, machine-readable format. Which interface should the engineer choose?

NETCONF with 'get-config' and 'get' operations

CLI with 'show configuration' commands

J-Web with the configuration viewer

A network engineer is automating configuration changes on a Junos device. The engineer wants to ensure that a configuration change is applied only if it passes validation, and if it fails, the device should not be left in an inconsistent state. Which approach should the engineer use?

Use the 'rollback' operation after the 'commit' operation.

Use the 'commit check' operation before the 'commit' operation.

Use the 'load override' operation before the 'commit' operation.

Use the 'commit confirmed' operation with a timeout.

An automation engineer is writing a script that uses NETCONF to make configuration changes on a Junos device. The script needs to ensure that if the commit fails, the device automatically reverts to the previous configuration after a specified timeout. Which approach should the engineer use?

Use the 'commit check' operation and then issue a 'commit' if validation passes.

Use the 'commit confirmed' operation with a timeout value.

Use the 'commit' operation and then manually issue a 'rollback' if the commit fails.

Use the 'load override' operation and then issue a 'commit'.

When you issue an operational command like 'show interfaces', how does MGD process it?

MGD forwards the request to the Packet Forwarding Engine for execution

MGD executes the command and returns the output to the client

MGD sends the request to the routing protocol process for execution

MGD discards the request if it is not a configuration command

Juniper NetworksCertified Specialist, Automation and DevOps (JNCIS-DevOps)

Domain 1Objective 1

Management Process (MGD-based) Automation JN0-423 Practice Questions (Page 3)

Part of the Platform Automation Overview domain, which makes up ~14% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~5–8 in this domain), expect 2–3 from this objective — we provide 21 practice questions to prepare you well beyond it. (estimate)

21questions here

5free pages

5concepts

Questions 11–15

11foundation · easy
Which management interface is a web-based graphical interface that interacts with MGD?
Select an answer first
12application · medium
A network engineer is designing a monitoring solution for a Junos device. The solution needs to collect configuration changes and operational state data. The engineer wants to use a programmatic interface that provides a structured, machine-readable format. Which interface should the engineer choose?
Select an answer first
13expert · medium
A network engineer is automating configuration changes on a Junos device. The engineer wants to ensure that a configuration change is applied only if it passes validation, and if it fails, the device should not be left in an inconsistent state. Which approach should the engineer use?
Select an answer first
14expert · medium
An automation engineer is writing a script that uses NETCONF to make configuration changes on a Junos device. The script needs to ensure that if the commit fails, the device automatically reverts to the previous configuration after a specified timeout. Which approach should the engineer use?
Select an answer first
15foundation · easy
When you issue an operational command like 'show interfaces', how does MGD process it?
Select an answer first

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Management Process (MGD-based) Automation JN0-423 Practice Questions (Page 3)

Questions 11–15

Which management interface is a web-based graphical interface that interacts with MGD?

A network engineer is automating configuration changes on a Junos device. The engineer wants to ensure that a configuration change is applied only if it passes validation, and if it fails, the device should not be left in an inconsistent state. Which approach should the engineer use?

An automation engineer is writing a script that uses NETCONF to make configuration changes on a Junos device. The script needs to ensure that if the commit fails, the device automatically reverts to the previous configuration after a specified timeout. Which approach should the engineer use?

When you issue an operational command like 'show interfaces', how does MGD process it?

Keep studying — Platform Automation Overview