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JN0-412 exam, what kind of exam is it?

The Cloud, Specialist (JNCIS-Cloud) exam will validate your understanding of software-defined networking principles and technologies. It is more or less related to JN0-411 and further expanded in the form of Juniper courses.

Exam Code: JN0-412
Exam time: 90 minutes
Exam Type: 65 multiple choice questions
Prerequisite Certification: JNCIA-Cloud
Software version: Contrail 5.1
Official Exam Resources:

  • Industry/product knowledge
  • Juniper TechLibrary
  • Contrail API Reference
  • Contrail Networking and Security User Guide
  • Kubernetes Documentation
  • OpenStack Documentation

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JN0-412 free dumps exam questions answers:


You are using Contrail as the SDN controller for your data center. You must ensure that Contrail provides DNS service
to the VMs of a particular virtual network. Which two DNS modes would accomplish this task? (Choose two.)

A. tenant
B. virtual DNS
C. default
D. reverse

Correct Answer: AB

Reference: https://juniper.github.io/contrail-windows-docs/For%20developers/Research/ dns_in_contrail_overview/


You decide to create only host routes for each of your virtual networks in a project. Each virtual network is sent its
correct host prefix. When troubleshooting inter-VN connectivity, using the ping command, the response times out
between two virtual networks even though your policies allow for it. What is the problem in this scenario?

A. The VMs do not have interfaces.
B. Using host routes prevents the default route from being sent.
C. Your VMs have incorrect DNS settings.
D. The IPAM settings are incorrect.

Correct Answer: C


Click the Exhibit button.

The exhibit displays a Contrail analyzer virtual machine\\’s console. Which two statements are true in this scenario?
(Choose two.)

A. The ping traffic is initiated by a virtual machine with an IP address of
B. The ping traffic is initiated by a virtual machine with an IP address of
C. The Contrail analyzer virtual machine\\’s IP address is
D. The Contrail analyzer virtual machine\\’s IP address is

Correct Answer: AC


Which ETSI NFV function is responsible for the management of virtual network functions (VNF) and element
management systems (EMS)?

A. Virtual Network Function Manager (VNFM)
B. OpenStack
C. Contrail Command
D. Analytics Database

Correct Answer: A


Which role does Contrail serve in SDN?

A. orchestrator
B. controller
C. gateway
D. fabric

Correct Answer: A

Reference: https://www.sdxcentral.com/networking/sdn/definitions/juniper-contrail-controller/


Which three encapsulations does Contrail support for overlay networking? (Choose three.)

A. MPLS over GRE
D. MPLS over UDP
E. MPLS over IPsec

Correct Answer: ACD

Reference: https://www.juniper.net/us/en/local/pdf/whitepapers/2000535-en.pdf


Click the Exhibit button.

Referring to the exhibit, what must have occurred prior to JohnDoe sending the request?

A. JohnDoe must have obtained a valid token from Horizon.
B. JohnDoe must have successfully authenticated using OpenStack\’s Web user interface.
C. JohnDoe must have obtained a valid token from Keystone.
D. JonnDoe must have obtained a valid token from the Contrail control node.

Correct Answer: A


To retrieve attributes of a new virtual machine, with which Contrail component does the OpenStack Nova agent
communicate to create a virtual network?

A. Neutron
B. Glance
C. Analytics
D. Control

Correct Answer: A


Which two statements regarding tags, within the Contrail Security framework, are correct? (Choose two.)

A. RBAC determines which user accounts can modify or remove attached tags.
B. Tags are communicated from the control node to vRouters through route updates.
C. Only the CSPadmin user account can modify or remove attached tags.
D. Tags are communicated from the config node to vRouters through route updates.

Correct Answer: AB


Which command displays routes in vRouter VRF?

A. rt
B. show route
C. show route table vrf-name
D. route print

Correct Answer: A

Reference: https://www.juniper.net/documentation/en_US/contrail2.21/topics/task/configuration/vrouter-cliutilitiesvnc.html


You are creating a new Contrail cluster within the Contrail Command setup wizard.
In this scenario, which three parameters are required to create the cluster? (Choose three.)

A. Container Registry
B. cluster name
C. NTP server
D. Default Virtual Gateway
E. Contrail version

Correct Answer: ABE

Reference: https://www.juniper.net/documentation/en_US/contrail19/topics/example/contrail-commandcluster.html


Which two statements are true about AppFormix Heat maps? (Choose two.)

A. AppFormix Heat maps show historical performance at a glance.
B. AppFormix Heat maps show a visual chart of the relationship between hosts and VMs.
C. AppFormix Heat maps show real-time performance at a glance.
D. AppFormix Heat maps show a visual chart of the relationship between control and config nodes.

Correct Answer: BC

Reference: https://www.juniper.net/documentation/en_US/appformix/topics/concept/appformix-heatmap.html


What are two predefined tags that are used in Contrail Security policies? (Choose two.)\

A. label
B. group
C. family
D. site

Correct Answer: AD

Reference: https://www.juniper.net/documentation/en_US/contrail20/information-products/pathway-pages/ contrailnetworking-security-user-guide.pdf

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