JN0-412 시험 - Juniper실제시험문제와 답 - 65문항

Question No : 1

What is the fundamental component of a heat template?

A.Resources
B.Node
C.Storage
D.Input

정답:
Explanation: https://docs.openstack.org/heat/pike/

Question No : 2

You are not able to view a specific Glance image under a project named Administrator in OpenStack. However, you are able to view the same image in a different project named ProjectA.
What is the problem in this scenario?
A. The image is not marked as public.
B. There is an issue with Keystone authentication.
C. Only ISO, qcow2, and raw image types can be seen under all of the projects.
D. You have restricted access to the project named Administrator.

정답: A
Explanation: https://www.mirantis.com/blog/openstack-user-tip-add-new-image-openstack/

Question No : 3

A developer is logged into OpenStack and is trying to bring up a recently assigned project but is rejected at the identify source.
Which log file should you review to identify this problem?

A./var/log/keystone.log
B.var/log/apache2/horizon.log
C.var/log/swift.log
D.var/log/neutron.log

정답:

Question No : 4

Which two statements are true regarding the Network Function Virtualization (NFS) framework? (Choose two.)

A.The NFS framework requires an orchestration platform.
B.The NFS framework relies on a commodity hardware.
C.The NFS framework relies on custom built ASICs.
D.The NFS framework requires directly attached storage components.

정답:

Question No : 5

Two virtual machines in different virtual networks are not able to communicate with each other.
Which two troubleshooting steps would you help to identify this problem? (Choose two.)

A.Ensure that the SDN gateway has the VRF or VRFs created for the two virtual networks.
B.Ensure that there is a default route in each virtual network’s VR
C.Ensure that there is a Contrail policy between the two virtual networks.
D.Run the tcpdump command on the virtual machine’s tap interface.

정답:

Question No : 6

Which mechanism creates unique tenants within OpenStack?

A.Group
B.Profile
C.Guest
D.Project

정답:

Question No : 7

Which three load-balancing algorithms are supported by Contrail’s LBaaS feature? (Choose three.)

A.Destination port
B.Source IP
C.Weighted round-robin
D.Least connections
E.ECMP

정답:
Explanation:
https://www.juniper.net/documentation/en_US/contrail3.1/topics/task/configuration/load-balance-as-service-vnc.html

Question No : 8

Which command displays routes in a vRouter VRF?

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

정답:
Explanation:
https://www.juniper.net/documentation/en_US/contrail2.1/topics/task/configuration/vrouter-cli-utilities-vnc.html

Question No : 9

Creating a Contrail service chain requires the configuration of which three elements? (Choose three).

A.Service Policy
B.Service template
C.Service object
D.Service network
E.Service instance

정답:
Explanation:
https://www.juniper.net/techpubs/en_US/contrail3.1/topics/task/configuration/service-chaining-vnc.html

Question No : 10

What is needed to move compute resources between cloud environment?

A.Orchestration software
B.Data compression software
C.Firewall software
D.Load-balancing software

정답:

Question No : 11

Refer to the exhibit.

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.)

A.The SDN-GW interface facing the SDN cloud
B.The Control-1 data interface
C.The Compute-1 data interface
D.The VM-1 tap interface
E.The Compute-2 data interface

정답:

Question No : 12

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?

A.In-network private
B.In-network NAT
C.In-Network
D.Transparent

정답:

Question No : 13

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 OpenStack’s Web user interface would you set up these resources?

A.Project>Compute>Instances
B.Orchestration>Stacks
C.Project>Compute>Images
D.Admin>System>Flavors

정답:
Explanation:
https://docs.openstack.org/horizon/latest/admin/manage-flavors.html

Question No : 14

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.)

A.Create the API endpoints in Keystone.
B.Create a new availability zone for Glance.
C.Create the Glance service credentials.
D.Create local storage capacity for Glance images.

정답:
Explanation:
https://docs.openstack.org/mitaka/install-guide-ubuntu/glance-install.html

Question No : 15

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.A new load-balancing service will be provisioned by the orchestrator prior to moving the caching servers.
B.The orchestration platform can remap the traffic through the existing load-balancing service once the caching servers are moved.
C.The load-balancing service must be decommissioned and re-provisioned once the caching servers are moved.
D.The load-balancing service can be migrated to the vRouters where the caching servers are located.

정답:

Juniper JN0-412 시험