JN0-421 Exam Dumps Pass with Updated Feb-2022 Tests Dumps
JN0-421 exam questions for practice in 2022 Updated 66 Questions
Juniper JN0-421 Exam Certification Details:
| Exam Price | $300 USD |
| Exam Registration | PEARSON VUE |
| Recommended Training | Junos Platform Automation and DevOps (JAUT) |
| Exam Name | Automation and DevOps Specialist |
NEW QUESTION 19
Click the Exhibit button.
Referring to the exhibit, what is the execution order of tasks in the Ansible plybook?
- A. Task A > Task B > Task C
- B. Task C > Task B >
- C. Task A > Task B >
- D. Task C > Task B > Task A
Answer: D
NEW QUESTION 20
Click the Exhibit button.
You manger asks you to trouble shoot an Ansible problem when logging into a Junson device. You notice the Ansible pay in question has a vars_files argument that calls the variables.yml entery file. The contents of that file are displayed in the exhibit.
What is happening in this scenario?
- A. The variables.yml files is not actually a YAMI.file.
- B. The file is encrypted with ansible
- C. The file is encrypted with ansible-vault
- D. The file is an SSH key
Answer: D
NEW QUESTION 21
Which data serialization method does the Junos CLI use to communicate with the Junos management process (mgd) /
- A. JSON
- B. gRPC
- C. XML
- D. YAML
Answer: C
NEW QUESTION 22
Which two statements are correct about JSON characteristics? (Choose two.)
- A. JSON is programming language independent
- B. JSON is easy to read for humans and devices.
- C. JSON is a supported template language.
- D. JSON uses # # for comments
Answer: A,B
NEW QUESTION 23
What are two attributes of the jsd JET service process? (Choose two.)
- A. It executes one API request per session.
- B. It executes APIs from multiple sessions in parallel
- C. It creates a separate thread to service JET application requests
- D. It supports only one client session at a time
Answer: A,C
NEW QUESTION 24
You are asked to write an application that interacts directory with the internal APIs belonging to rpd.
Which statement is true in this scenario?
- A. You must write the application using the YANG APIs.
- B. You must write the application using the JET APIs.
- C. You must write the application using the XML APIs.
- D. You must write the application using the REST APIs.
Answer: D
NEW QUESTION 25
Click the Exhibit button.
Where would the Python code shown in the exhibit be used?
- A. an SNMP script
- B. an op script
- C. an event script
- D. a commit script
Answer: A
NEW QUESTION 26
What is a purpose of RubyEZ?
- A. to provide a Ruby interface to Juniper devices that support Puppet
- B. to provide a Ruby interface to the Junos Space management product
- C. to provide a Ruby framework for interfacing with Juniper devices
- D. to provide an off device interface to Ruby
Answer: B
NEW QUESTION 27
What are two benefits of network automation? (Choose two )
- A. to improve product lifecycle management
- B. to enforce consistency in automated devices
- C. to provide historical configuration management
- D. increase programming language fluency
Answer: A,B
NEW QUESTION 28
What are two message types that compose the message layer of the Juniper NETCONF implementation? (Choose two.)
- A. <rpc>
- B. <rpc-reply>
- C. <get>
- D. <lock>
Answer: A,B
NEW QUESTION 29
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.)
A)
B)
C)
D)
- A. Option B
- B. Option C
- C. Option A
- D. Option D
Answer: D
NEW QUESTION 30
Click the Exhibit button.
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>user02</session-id></kill-session></rpc]]>]]> command.
- D. Login with another NETCONF session and enter the <rpc><kill-session>< session -id>8099</session-id></kill-session></rpc]]>]]> command.
Answer: A
NEW QUESTION 31
Click the Exhibit button.
You need to programmatically extract interface information using PYeZ from you MX Series device. You log in and use the show interfaces terse I display xml rpc command and see the information shown in the exhibit.
What is the correct PyEZ syntax to accomplish this task?
A)
B)
C)
D)
- A. Option B
- B. Option C
- C. Option A
- D. Option D
Answer: D
NEW QUESTION 32
Which statement describes the relationship between YANG and NETCONF?
- A. YANG models the state and configuration data manipulated by the NETCONF protocol.
- B. YANG is the programming language used to generate base classes to develop the NETCONF protocol.
- C. NETCONF models XML data use to program YANG modules.
- D. NETCONF is the programming language used to create the state and configuration data manipulaterd by YANG.
Answer: D
NEW QUESTION 33
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
What is the cause for this error?
- A. router1.example.com was not defined in /etc/ansible/inventory/hosts on the control machine.
- B. router1.example.com was not defined in /etc/hosts on the control machine.
- C. Ansible cannot authenticate to the device.
- D. Ansible cannot connect to the device through NTETCONF
Answer: A
NEW QUESTION 34
You want to push a configuration onto a Junos device without using NETCONF.
Which two will accomplish this task? (Choose two.)
- A. ZTP
- B. Ansible
- C. JET
- D. JSNAPy
Answer: C,D
NEW QUESTION 35
What are three ways for PyEZ to connect to supported Junos devices? (Choose three.)
- A. NETCONF over SSH
- B. JET API
- C. Telnet
- D. Webook
Answer: A
NEW QUESTION 36
In SLAX, what is the difference between the jcs : invoke ( ) and the jcs : execute ( ) functions?
- A. RPCs called by jcs : execute ( ) are executed within an existing connection.
- B. RPCs called by jcs : invoke ( ) are executed within an existing connection.
- C. RPCs called by jcs : invoke ( ) are not executed until the conclusion of the script.
- D. RPCs called by jcs : execute ( ) are not executed until the conclusion of the script.
Answer: C
NEW QUESTION 37
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Juniper JN0-421 Exam Topics:
| Section | Objectives |
|---|---|
| Platform Automation Overview | Identify concepts, general features, or functionality of Junos platform automation
|
| NETCONF/XML API | Describe the concepts, benefits, or operation of automation access methods
|
| Juniper Extension Toolkit | Identify the concepts, general features, or functionality of the Juniper Extension Toolkit
|
| Python | Describe Python tools for automating Junos
|
| Stateful Configuration (Ansible/SALT) | Describe how to use Ansible for automating Junos
|
| Data Serialization and Templating | Describe the concepts, benefits, or operation of data serialization
|
| Junos Automation Scripts | Describe the concepts, benefits, or operation of automation scripts for Junos
|
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