JN0-412 Online Practice Questions and Answers

What are two networking components of OpenStack? (Choose two.)

A. Neutron

B. Nova

C. Ironic

D. Barbican

Which two statements are true about Generic Device Operations? (Choose two.)

A. Generic Device Operations execute multiple commands on multiple devices.

B. Generic Device Operations are executed using the REST API.

C. Generic Device Operations are executed using Ansible.

D. Generic Device Operations execute a single command on multiple devices.

What is a TAP interface in Contrail?

A. A software network interface that operates at OSI Layer 3.

B. A hardware network interface that operates at OSI Layer 3.

C. A software network interface that operates at OSI Layer 2.

D. A hardware network interface that operates at OSI Layer 2.

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

Your development team asks you to provision twenty exact copies of a three-tier application containing three VMs. Each copy of the application must be on their own isolated network. The development team also wants to deploy more copies in the future from a self-service portal.

What will accomplish this task?

A. Create a Heat orchestration template for the application and then launch twenty stacks using the Horizon dashboard or OpenStack CLI.

B. Use the Contrail fabric manager to define and launch all twenty stacks using an intent-driven automation feature.

C. Create all twenty networks and launch each instance using the Horizon instance creation wizard.

D. Create a Heat orchestration template for the application and then launch twenty stacks using the AppFormix user interface.

What are two supported methods to add a new Contrail compute node using Contrail Command? (Choose two.)

A. From the Web UI, add a new server and assign it as a compute node to the existing cluster.

B. From the CLI on the Contrail Command server, edit the instances.yml file and add the new node information.

C. From the CLI on the Contrail Command server, edit the command_servers.yml file and add the new node information.

D. From the CLI on the Contrail Command server, edit the testbed.py file and add the new node information.

Which statements correct about Contrail security?

A. Contrail security is used to control access into Junos devices.

B. Contrail security is used to apply security features and segment traffic flows.

C. Contrail security is used to analyze network performance and learn traffic patterns.

D. Contrail security is used to control management access to VNFs.

Click the Exhibit button.

Within your Contrail cluster, a BGP peer is not advertising routes as expected. After issuing the curl http:// :8081/analytics/uves/bgp-peers command, you receive the output show in the exhibit.

What is causing this problem?

A. an incorrect local ID

B. an incorrect peer type

C. an incorrect IP address

D. an incorrect family

Which two statements about a Contrail environment are true? (Choose two.)

A. Control nodes peer with other control nodes using XMPP.

B. Control nodes peer with other control nodes using MP-BGP.

C. Control nodes peer with compute nodes using XMPP.

D. Control nodes peer with compute nodes using MP-BGP.

In which OpenStack core service would you find disk snapshots?

A. Glance

B. Trove

C. Cinder

D. Swift