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Question No 8

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

Answer: B
Explanation
References:

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Question No 7

Which statement describes the relationship between YANG and NETCONF?

Options

A.YANG is the programming language used to generate base classes to develop the NETCONF protocol
B.NETCONF models XML data used to program YANG modules
C.YANG models the state and configuration data manipulated by the NETCONF protocol
D.NETCONF is the programming language used to create the state and configuration data manipulated by YANG

Answer: C
Explanation
References:

JN0-420 Dumps | Actual Free And Updated Dumps – Braindumps

Question No 6

Which two statements are correct about JSON characteristics? (Choose two)

Options

A. JSON is a supported template language
B. JSON is easy to read for humans and devices
C. JSON uses ## for comments
D. JSON is programming language independent

Answer: B,D

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Question No 5

You need to reset all Junos systems in your lab to their factory-default state and then push a new configuration to the device. Which two Ansible modules would your playbook use to accomplish this task? (Choose two)

Options

A. junos_system_services
B. junos_zeroize
C. junos_get_facts
D. junos_install_config

Answer: B,D
Explanation:
References:
https://www.juniper.net/documentation/en_US/junos-ansible1.0/topics/example/junos-ansibleplaybooks-device-zeroize.html
https://www.juniper.net/documentation/en_US/junos-ansible1.0/topics/example/junos-ansibleplaybooks-device-configuring.html

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Question no 4

Which two statements are correct about JSON characteristics? (Choose two)

Options

A. JSON is a supported template language
B. JSON is easy to read for humans and devices
C. JSON uses ## for comments
D. JSON is programming language independent

Answer: B,D

JN0-420 Exam Study Material | JN0-420 Exam Study Guide - Braindumps

JN0-420 Dumps | Juniper Exam Study Guide – Realexamdumps.us

Question No 3

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

Answer: B
Explanation
References:

JN0-420 Dumps | Download Exact Juniper Exam Study Guide – Realexamdumps.us

Question No 2

You need to reset all Junos systems in your lab to their factory-default state and then push a new configuration to the device.Which two Ansible modules would your playbook use to accomplish this task? (Choose two)

Options

A.junos_system_services
B.junos_get_facts
C.junos_install_config

Answer: B D
Explanation
References:
https://www.juniper.net/documentation/en_US/junos-ansible1.0/topics/example/junos-ansible-playbooks-device-zeroize.html
https://www.juniper.net/documentation/en_US/junos-ansible1.0/topics/example/junos-ansible-playbooks-device-c

JN0-420 Dumps | Download Exact Juniper JN0-420 Exam Study Guide – Realexamdumps.us

Question No 1

What are two attributes of the jsd JET service process? (Choose two.)

Options

A. It executes APIs from multiple sessions in parallel
B. It executes one API request per session.
C. It creates a separate thread to service JET application requests
D. It supports only one client session at a time

Answer: B,C