Juniper JN0-421 Real 2023 Braindumps Mock Exam Dumps [Q13-Q30]

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Juniper JN0-421 Real 2023 Braindumps Mock Exam Dumps

JN0-421 Exam Questions | Real JN0-421 Practice Dumps

QUESTION 13
Click the Exhibit button.
Exhibit:

Referring to the exhibit, which exception is raised if the <get-interface-information> RPC takes 40 seconds to return a complete response?

jnpr.junos.exception.RpcError

jnpr.junos.exception.ConnectTimeoutError

jnpr.junos.exception.RpcTimeoutError

jnpr.junos.exception.LockError

Explanation
By default, the timeout value is 30 seconds, if this is exceeded a jnpr.junos.exception.RpcTimeoutError error is received.

QUESTION 14
You want to enable an unsigned Python op script named inventory.py that will be stored on a local Junos device.
Which two commands are needed to accomplish this task? (Choose two)

set system scripts op allow-url-for-python

set system scripts op file inventory.py

set system scripts op no-allow-url

set system scripts language python

QUESTION 15
Click the Exhibit button.

Referring to the exhibit, what is the execution order of tasks in the Ansible plybook?

Task C > Task B > Task A

Task A > Task B > Task C

Task C > Task B >

Task A > Task B >

QUESTION 16
You want to push a configuration onto a Junos device without using NETCONF.
Which two will accomplish this task? (Choose two.)

JET

JSNAPy

Ansible

ZTP

QUESTION 17
Which statement describes the relationship between YANG and NETCONF?

YANG is the programming language used to generate base classes to develop the NETCONF protocol

NETCONF models XML data used to program YANG modules

YANG models the state and configuration data manipulated by the NETCONF protocol

NETCONF is the programming language used to create the state and configuration data manipulated by YANG

QUESTION 18
What are two format distinctions to know when using YAML? (Choose two)

white space indentation sensitive

tab indentation not allowed

tab indentation allowed

white space indentation insensitive

Explanation
Because YAML is white-space sensitive and indentation is significant (not allowed), you should always use spaces rather than tabs when creating playbooks. In YAML, items preceded by a hyphen (-) are considered list items, and the key:value notation represents a hash.
References:

QUESTION 19
What are three supported languages for operational scripts on Junos devices? (Choose three.)

SLAX

Python

Java

PHP

QUESTION 20
Click the Exhibit button.
Exhibit:

Referring to the exhibit, what are two results of the Python operational script? (Choose two)

It disables a user-selected interface

It commits the configuration

It deactivates a user-selected interface

It does not commit the configuration

QUESTION 21
Click the Exhibit button.

You are using RubyEZ to interface with a Junos device, however, you are not successfully connecting to the device.
Referring to the exhibit, what is the problem?

A Junos::Ez::Provider statement is missing before the Netconf::SSH.nw statement.

Netconf::SSH.new statement arguments must be hashes.

Netconf::SSH.new statement only expects an IP address of the target device.

Arguments passed to Netconf::SSH.new statement must be referenced as variables.

QUESTION 22
You are asked to write an application that interacts directory with the internal APIs belonging to rpd.
Which statement is true in this scenario?

You must write the application using the REST APIs.

You must write the application using the XML APIs.

You must write the application using the YANG APIs.

You must write the application using the JET APIs.

QUESTION 23
Click the Exhibit button.
Exhibit:

Referring to the exhibit, what is the execution order of tasks in the Ansible playbook?

Task A > Task B

Task A > Task B > Task C

Task C > Task B

Task C > Task B > Task A

QUESTION 24
To which component(s) does the JET service APIs provide access?

YANG modules

XML APIs

control plane

forwarding plane

QUESTION 25
Which two primary processes are used by Juniper devices for on-box or off-box automation? (Choose two)

mgd

ancpd

jsd

rpd

QUESTION 26
Click the Exhibit button.

Referring to the exhibit, which Python statement selects the <user-entry> element for the user logged in on the pts/2 TTY?
A)

B)

C)

D)

Option A

Option B

Option C

Option D

QUESTION 27
What are three ways for PyEZ to connect to supported Junos devices? (Choose three)

NETCONF over SSH

serial interface

Telnet

JET API

Webhook

QUESTION 28
What are three elements of a JET notification message? (Choose three)

time

severity

username

subscription type

hostname

Explanation
JET notification is delivered in JSON format. The JSON message has two parts, one the header, and other the event-information portion, called attributes. The header is common for all events. It contains the event ID, hostname, time, severity, and facility of the event. The attributes vary depending event’s topic name.
References:

QUESTION 29
Using the RESTful API on a Junos device, you are able to retrieve configuration information in which three formats? (Choose three)

YAML

XML

plain text

GPB

JSON

QUESTION 30
Which YAML document represents a valid mapping (dictionary) of sequences (lists)?