Free Juniper JN0-420 Exam Actual Questions

The questions for JN0-420 were last updated On Dec 19, 2025

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Question No. 1

In SLAX, what is the difference between the jcs:invoke () and the jcs:execute () functions?

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Correct Answer: A

Question No. 2

Your organization is creating a custom YANG module. You are asked to create a leaf node called timeout with a data type of duration.

In this scenario, what is the appropriate syntax for this leaf node?

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Correct Answer: D

Question No. 3

Which data serialization is used between RubyEZ and a Junos device?

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Correct Answer: B

Question No. 4

Click the Exhibit button.

Exhibit:

Referring to the exhibit, what should be replaced with to correctly print out the exception message Cannot connect to device?

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Correct Answer: B

Question No. 5

Which pair of daemons in the Junos OS handle automation?

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Correct Answer: A