Juniper JN0-420 Exam Practice Questions and Answers

Question 6 of 65

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

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

Question 7 of 65

Click the Exhibit button.

Exhibit:

Where would the Python code shown in the exhibit be used?

A.

a commit script

B.

an op script

C.

an event script

D.

an SNMP script

Question 8 of 65

Click the Exhibit button.

Exhibit:

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?

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 <rpc><close-session>8099</close-session></rpc>]]>]] command

C.

Log in with another NETCONF session and enter the <rpc><kill-session><session-id>8099</session-id></kill-session></rpc>]]>]]> command

D.

Log in with another NETCONF session and enter the <rpc><kill-session><session-id>user02</session-id></kill-session></rpc>]]>]]>

Question 9 of 65

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

What is the cause for this error?

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

Question 10 of 65

Which statement describes the relationship between YANG and NETCONF?

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