JN0-420 Online Practice Questions and Answers

Click the Exhibit button.

Exhibit:

Ansible playbook:

The r0 device is currently in a factory-default state. The console connection of r0 is reachable using Telnet

on TCP port 555 of the console_server host.

Referring to the exhibit, which statement is true?

A. The device does not require configuration changes for the playbook to run successfully

B. The Telnet service must be configured for the playbook to run successfully

C. A password for the root user must be configured for the playbook to run successfully

D. The NETCONF service must be configured for the playbook to run successfully

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

With which three processes does the JET service process communicate? (Choose three)

A. snmpd

B. ancpd

C. cosd

D. mgd

E. rpd

Click the Exhibit button. Exhibit:

Referring to the exhibit, what is the type of the myConfig variable on line 17 of the Python script?

A. template

B. dictionary

C. string

D. list

Click the Exhibit button. Exhibit:

The Ansible playbook shown in the exhibit is executed against a set of Junos network devices. Each Junos

device is configured with a user account in the super-user login class. The user account uses SSH-keybased authentication with a passphrase of user123.

What is the result of executing this playbook against the Junos network devices?

A. The playbook executes, but fails with a "ConnectAuthError" due to the missing passphrase argument to the junos_get_facts module

B. The playbook fails due to a YAML syntax error.

C. The playbook executes and prints the version of Junos running on each network device as the value of response.facts.version

D. The playbook executes and prints "VARIABLE IS NOT DEFINED!" as the value response.facts.version

Which two primary processes are used by Juniper devices for on-box or off-box automation? (Choose two)

A. mgd

B. ancpd

C. jsd

D. rpd

Click the Exhibit button. Exhibit:

An automation developer is using command-line scripting and wants to briefly survey NETCONF

capabilities before running a new task.

Referring to the exhibit, how does the automation developer end the current NETCONF session and go to

the next one?

A. Use the command.

B. Use the quit command

C. Use the logout command

D. Use the command.

You are writing a SLAX op script to provide a customized rendition of the show interface output. You want to include a command-line argument named interface and provide it with the default value of fxp0. Which code snippet accomplishes this goal?

A. default $interface = "fxp0";

B. argument $interface = "fxp0";

C. param $interface = "fxp0";

D. $interface = "fxp0";

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?

A. augment

B. deviation

C. case

D. choice

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?

A. Option A

B. Option B

C. Option C

D. Option D