What are three mechanisms supported by the Neutron ML2 plugin? (Choose three.)
- A . GRE
- B . VLAN
- C . VXLAN
- D . IPsec
- E . MPLS
A,B,C
Explanation:
https://wiki.openstack.org/wiki/Neutron/ML2
Click the exhibit button.
While completing the install of OpenStack, you upload the Cirros image the CLI to validate the Glance install. However, it times out after a short time. You review the logs located at /var/log/glance/api.log.
Referring to the exhibit, which action will solve this problem?
- A . Set the glance.api version to version 1 and retry the upload.
- B . Get a new Cirros image; the current image is corrupted.
- C . Replace the schema image file with the correct name of the image.
- D . Update the GLANCE DBPASS in the keystone.conf file.
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 customer’s VM that uses the SR-IOV interface.
Which two statements are true in this scenario? (Choose two.)
- A . You cannot perform analytics on the SR-IOV interface traffic.
- B . The SR-IOV interface must be re-added to the analytics engine.
- C . The data of packets going to the VM does not go through the vRouter on the host.
- D . You must use the tap interface on the Contrail vRouter to collect SR-IOV analytics data.
hat are two Keystone endpoint types? (Choose two.)
- A . root
- B . admin
- C . rbac
- D . public
B,D
Explanation:
https://linuxacademy.com/blog/linux/understanding-keystone-endpoints/
What is the role of an orchestration platform in a cloud networking environment?
- A . It controls and monitors the network underlay infrastructure.
- B . It controls pools of compute, storage, and networking resources.
- C . In configures and monitors tunnels between physical hosts.
- D . It configures and monitors tunnels between virtual hosts.
Refer to the exhibit.
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?
- A . The packet sniffing service must be performed on the edge routers facing the Internet.
- B . The packet sniffing service must be enabled on the vRouter directly attached to the customer’s VM.
- C . The packet sniffing service can be implemented on any physical host in the cloud environment.
- D . The packet sniffing service can be implemented on any switch within the underlay fabric.
Which two OpenStack projects contain networking components? (Choose two.)
- A . Keystone
- B . Magnum
- C . Nova
- D . Neutron
Which statement is true regarding Virtual Network Functions (VNF)?
- A . A VNF is implemented with virtual platforms.
- B . A VNF requires an SDN controller for implementation.
- C . A VNF is implemented with physical hardware platforms.
- D . 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?
- A . 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.
- B . 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.
- C . 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.
- D . 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?
- A . IaaS
- B . PaaS
- C . DBaaS
- D . SaaS
Refer to the exhibit.
Referring to the exhibit, what does the IP address 10.1.1.2 refer to in the api_server.conf file in Contrail?
- A . The physical server IP address
- B . The OpenStack controller IP address
- C . The Server Web UI IP address
- D . 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 . 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.
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.
A,C
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 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
D
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?
- A . In-network private
- B . In-network NAT
- C . In-Network
- D . Transparent
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
What is needed to move compute resources between cloud environment?
- A . Orchestration software
- B . Data compression software
- C . Firewall software
- D . Load-balancing software
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
A,B,E
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?
- A . rt
- B . show route
- C . show route table vrf-name
- D . route print
A
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 Contrail’s LBaaS feature? (Choose three.)
- A . Destination port
- B . Source IP
- C . Weighted round-robin
- D . Least connections
- E . ECMP
B,C,D
Explanation:
https://www.juniper.net/documentation/en_US/contrail3.1/topics/task/configuration/load-balance-as-service-vnc.html
Which mechanism creates unique tenants within OpenStack?
- A . Group
- B . Profile
- C . Guest
- D . Project
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 VRF.
- 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.
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.
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
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.
A
Explanation: https://www.mirantis.com/blog/openstack-user-tip-add-new-image-openstack/
What is the fundamental component of a heat template?
- A . Resources
- B . Node
- C . Storage
- D . Input
A
Explanation: https://docs.openstack.org/heat/pike/