JN0-413 Dumps
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JN0-413 Actual Questions
Cloud, Specialist (JNCIS-Cloud)
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You have configured an SR-IOV interface on a virtual host machine in your Contrail network environment. You discover that analytics data is not being recorded for traffic to the customerâs VM that uses the SR-IOV interface.
Which two statements are true in this scenario? (Choose two.)
You cannot perform analytics on the SR-IOV interface traffic.
The SR-IOV interface must be re-added to the analytics engine.
The data of packets going to the VM does not go through the vRouter on the host.
You must use the tap interface on the Contrail vRouter to collect SR-IOV analytics data.
What are two Keystone endpoint types? (Choose two.)
root
admin
rbac
public
Explanation:
https://linuxacademy.com/blog/linux/understanding-keystone-endpoints/
What is the role of an orchestration platform in a cloud networking environment?
It controls and monitors the network underlay infrastructure.
It controls pools of compute, storage, and networking resources.
In configures and monitors tunnels between physical hosts.
It configures and monitors tunnels between virtual hosts.
You have a Contrail providing cloud services to Customer A. Customer A wants to add a packet capture service to their network to analyze traffic flowing to and from the Internet.
Referring to the exhibit, which statement is true?
The packet sniffing service must be performed on the edge routers facing the Internet.
The packet sniffing service must be enabled on the vRouter directly attached to the customerâs V
The packet sniffing service can be implemented on any physical host in the cloud environment.
The packet sniffing service can be implemented on any switch within the underlay fabric.
Which two OpenStack projects contain networking components? (Choose two.)
Keystone
Magnum
Nova
Neutron
Which statement is true regarding Virtual Network Functions (VNF)?
A VNF is implemented with virtual platforms.
A VNF requires an SDN controller for implementation.
A VNF is implemented with physical hardware platforms.
A VNF requires an SDN orchestrator for implementation.
You are required to implement a Contrail service that will automatically increase network resources for that service when under high traffic loads, and reduce network resources for that service under low traffic loads.
Which configuration steps will accomplish this task?
Configure Heat to monitor the CPU threshold of services VMs, and configure a Heat auto-scaling policy to adjust the VM resources allocated to the service.
Configure Ceilometer to monitor the CPU threshold of services VMs, and configure a Ceilometer auto-scaling policy to adjust the VM resources allocated to the service.
Configure Heat to monitor the CPU threshold of services VMs, and configure a Ceilometer auto-scaling policy to adjust the VM resources based on alarms generated by Heat.
Configure Ceilometer to monitor the CPU threshold of services VMs, and configure a Heat auto-scaling policy to adjust VM resources based on the alarms generated by Ceilometer
You want to deploy an application to the cloud so that the application instances can be dynamically mirrored. You want to manage only the application, leaving all other management to the cloud provider.
Which type of cloud service should you choose in this situation?
IaaS
PaaS
DBaaS
SaaS
Referring to the exhibit, what does the IP address 10.1.1.2 refer to in the api_server.conf file in Contrail?
The physical server IP address
The OpenStack controller IP address
The Server Web UI IP address
The Contrail IP address
You have deployed a load-balancing service for a customer in your Contrail cloud networking environment for their data cache system. Due to the network capacity requirements, the caching servers must be migrated to a different rack of equipment within the data center.
Which two statements are true in this scenario? (Choose two.)
A new load-balancing service will be provisioned by the orchestrator prior to moving the caching servers.
The orchestration platform can remap the traffic through the existing load-balancing service once the caching servers are moved.
The load-balancing service must be decommissioned and re-provisioned once the caching servers are moved.
The load-balancing service can be migrated to the vRouters where the caching servers are located.
You are implementing an OpenStack environment and need to install the Glance service on the control node. Which two actions must take place to successfully complete this action? (Choose two.)
Create the API endpoints in Keystone.
Create a new availability zone for Glance.
Create the Glance service credentials.
Create local storage capacity for Glance images.
Explanation:
https://docs.openstack.org/mitaka/install-guide-ubuntu/glance-install.html
You are using OpenStack as the orchestrator for your data center. You need to instantiate several instances of a webserver. There is a requirement that each webserver VM must have six VCPUs and 32 GB of RAM.
Where in OpenStackâs Web user interface would you set up these resources?
Project>Compute>Instances
Orchestration>Stacks
Project>Compute>Images
Admin>System>Flavors
Explanation: https://docs.openstack.org/horizon/latest/admin/manage-flavors.html
You are asked to create a Contrail service instance between two virtual networks. The left virtual network is a private virtual network. The routes from the left virtual network VRF should not be leaked into the right virtual network VRF.
Which Contrail service instance type would you choose in this scenario?
In-network private
In-network NAT
In-Network
Transparent
Virtual machine VM-1 is spawned on a compute node Compute-1. VM-1 is not able to ping PC-1, which is located outside of the SDN cloud. You want to run packet captures to trace the packet initiated by VM-1 towards PC-1.
Referring to the exhibit, which three interfaces would you use to accomplish this task? (Choose three.)
The SDN-GW interface facing the SDN cloud
The Control-1 data interface
The Compute-1 data interface
The VM-1 tap interface
The Compute-2 data interface
What is needed to move compute resources between cloud environment?
Orchestration software
Data compression software
Firewall software
Load-balancing software
Creating a Contrail service chain requires the configuration of which three elements? (Choose three).
Service Policy
Service template
Service object
Service network
Service instance
Explanation:
https://www.juniper.net/techpubs/en_US/contrail3.1/topics/task/configuration/service-chaining-vnc.html
Which command displays routes in a vRouter VRF?
rt
show route
show route table vrf-name
route print
Explanation:
https://www.juniper.net/documentation/en_US/contrail2.1/topics/task/configuration/vrouter-cli-utilities-vnc.html
Which three load-balancing algorithms are supported by Contrailâs LBaaS feature? (Choose three.)
Destination port
Source IP
Weighted round-robin
Least connections
ECMP
Explanation:
https://www.juniper.net/documentation/en_US/contrail3.1/topics/task/configuration/load-balance-as-service-vnc.html