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  5. Automation and DevOps Specialist (JNCIS-DevOps) Questions and Answers
Note! The JN0-421 Exam is no longer available.

JN0-421 Automation and DevOps Specialist (JNCIS-DevOps) Questions and Answers

Questions 4

What is the purpose of an __init__.py file?

Options:

A.

An __init__.py file initializes a Python application with default values for instantiated objects

B.

An __init__.py file indicates to the Python interpreter that a directory contains Python packages or modules

C.

__init__.py file sets all magic attributes with the __init__.prefix with the appropriate default values

D.

An __init__.py file contains strings for additional directories that the Python interpreter adds to sys.path []

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Questions 5

Using the RESTful API on a Junos device, you are able to retrieve configuration information in which three formats? (Choose three)

Options:

A.

YAML

B.

XML

C.

plain text

D.

GPB

E.

JSON

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Questions 6

You want to implement a function that is available in the Junos OS , but not defined in a standard model.

Which statement would you use with YANG to accomplish this task?

Options:

A.

augment

B.

deviation

C.

case

D.

choice

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Questions 7

Click the Exhibit button.

Exhibit:

JN0-421 Question 7

What will executing the program shown in the exhibit retrieve from a Junos device?

Options:

A.

the previous configuration changes of the device

B.

the current memory utilization

C.

the FPC inventory of the device

D.

the current software version on the device

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Questions 8

Click the Exhibit button.

Exhibit:

JN0-421 Question 8

While using NETCONF, the developer attempts to lock the configuration, but the error shown in the exhibit is received. The developer verifies no one else is configuring the device.

According to Juniper, how would you clear the error in this scenario?

Options:

A.

Log in with another NETCONF session, reboot the instance, and save the original configuration

B.

Log in with another NETCONF session and enter the 8099]]>]] command

C.

Log in with another NETCONF session and enter the 8099]]>]]> command

D.

Log in with another NETCONF session and enter the user02]]>]]> command

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Questions 9

A customer has a control machine with a default Ansible installation. During execution of an Ansible module against a Junos device, the Ansible control machine generates the

msg: unable to connect to router1.example.com: ConnectRefusedError (router1.example.com) error.

What is the cause for this error?

Options:

A.

router1.example.com was not defined in /etc/hosts on the control machine

B.

Ansible cannot connect to the device through NETCONF

C.

router1.example.com was not defined in /etc/ansible/inventory/hosts on the control machine

D.

Ansible cannot authenticate to the device

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Exam Code: JN0-421
Exam Name: Automation and DevOps Specialist (JNCIS-DevOps)
Last Update: Dec 11, 2023
Questions: 65