A company has an IRF-based, 2-tier FlexFabric architecture in its data center. The company is now increasing the amount of server virtualization and also adding more redundant connections across the network infrastructure backbone. Which benefit does software-defined networking (SDN) provide for this FlexFabric solution?
ASDN applications can extend the virtual switches inside hosts into the control plane of multiple physical infrastructure devices.
BSDN can help core routing switches handle more routing table entries without sacrificing performance.
CSDN extends the SNMP MIBs to include MIBs for virtual switches.
DSDN applications can help to provision network connectivity for virtual machines and to forward traffic across complex meshes of links
Which OpenFlow version introduces multiple flow tables?
A1.0
B1.1
C1.2
D1.3
An administrator wants to secure the connection between an HP Provision switch and HP VAN SDN Controller. What is the recommended approach to securing the OpenFlow messages?
AUse CA-signed certificates on an HP VAN SDN Controller and the HP Provision switches, and then use TLS to secure communication.
BUse OpenFlow message type 5 on the auxiliary channel to secure OpenFlow messages.
CUse an IPsec VPN between the HP Provision switch and the HP VAN SDN Controller to secure OpenFlow messages.
DUse self-signed certificates on an HP VAN SDN Controller and the HP Provision switches, and then use TLS to secure communication.
A customer has a network consisting of 90 switches running OpenFlow 1.0. High Availability is not required as a hybrid network is being used. Which license types does the customer need to purchase? (Select two.)
AHP VAN SDN Ctrl 100-node E-LTU
BHP VAN SDN Ctrl HA E-LTU
CHP VAN SDN Ctrl Base SWw/ 100-node E-LTU
DHP VAN SDN Ctrl Base SW w/ 50-node E-LTU
EHP VAN SDN Ctrl 50-node E-LTU
An SDN developer wants to develop a new OpenFlow proactive application using the HP VAN SDN Controller. The controller is configured with IP address
192.168.56.7 and is using release 2.0. The developer is unsure of the REST APIs available on the controller.
To which URL should you recommend the developer navigate?
Ahttps://192.168.56.7:8443/api
Bhttps://192.168.56.7:8443/sdn/ui
Chttp://192.168.56.7:8443/api
Dhttp://192.168.56.7:8443/sdn/ui
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Creating HP Software-defined Networks
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A customer wants to deploy an HP ProVision-based network with laptops daisy chained to physical IP phones. The customer also wants the laptop traffic to be managed by OpenFlow, while the phones use traditional QoS. Which OpenFlow switch instance configuration option should the customer use?
AQoS passthrough
BAggregate
CVirtualization
DPassive
What is an advantage of using the HP Network Optimizer SDN application with UC&C applications rather than just the SDN applications?
AIt enables the QoS trust boundary to be shifted to the switch.
BIt enables the UC&C Client to select the UC&C application server optimally located for them.
CIt removes the need for queuing.
DIt enables QoS verification for BYOD.
Which technology can be used in OpenFlow 1.3 that allows rate limiting of packets that are sent to the SDN Controller?
ASlicing
BsFlow support
CMeter on IP ToS/DSCP bits
DMeter table
What is used by the HP VAN SDN Controllers for internal communication between controllers?
AREST API Token
BAdmin ToKen
CAuth ToKen
DService Token
What is a key feature of cloud computing?
Aserver virtualization
Bnetwork management virtualization
Cuser self-provisioning
Dsoftware-defined networking
An administrator wants to navigate to the HP VAN SDN Controller graphical user interface to view options such as the OpenFlow Topology, Alerts, and installed applications. Which URL is correct for release 2.0 of the HP VAN SDN Controller configured with IP address 192.168.56.7?
Ahttps://192.168.56.7:8443/api
Bhttps://192.168.56.7:8080/sdn/ui
Chttps://192.168.56.7:8443/sdn/ui
Dhttp://192.168.56.7:8443/sdn/ui C
Which OpenFlow message ensures that all previous flow mod messages have been processed by the OpenFlow switch agent and that there are no flow mod messages queued for processing from an earlier time?
AFlush
BPush
CBarrier
DForce
Which environmental component is used to handle authentication requests to the HP VAN SDN Controller?
AZookeeper
BCassandra
CNeutron
DKeystone
What are two challenges when planning to implement a BYOD environment? (Select two.)
Adevice state unknown
Bdevice software inspection
Cdevice not under central control
Ddevice CA enrollment
Edevice inventory control
Which HP IMC SDN Manager functionality provides a logical overview of the OpenFlow network?
ASDN Manager reports
BSDN Manager dashboard
CSDN Manager flow entry management
DSDN Manager OpenFlow topology
A network environment consists of multiple switches. Some of the switches are configured for OpenFlow 1.0, and some of the switches are configured for
OpenFlow 1.3. These switches are configured to communicate with an HP VAN SDN Controller. What is the result of the negotiation?
AAll OpenFlow switches successfully negotiate to use OpenFlow 1.3 with the controller, and OpenFlow 1.0 switches ignore OpenFlow 1.3 extensions.
BOpenFlow 1.3 switches successfully negotiate to use OpenFlow 1.3 with the controller, and the OpenFlow 1.0 switches fail to connect
CAll switches negotiate to use OpenFlow 1.0 as the highest common version.
DOpenFlow 1.3 switches negotiate to use OpenFlow 1.3, and OpenFlow 1.0 switches negotiate to use OpenFlow 1.0.
A switch connects to the HP VAN SDN Controller, which has the HP Network Protector SDN Application installed. These are the switch details:
Switch: 3800-24G-2XG -
Firmware: KA15.14.003 -
OpenFlow negotiated: 1.3 -
Which channel will be used for communication with the HP Network Protector application?
AOpenFlow Channel
BNormal Forwarding
CService Insertion Tunnel
DGRE Tunnel
An HP Provision switch loses its OpenFlow connection to the HP VAN SDN Controller. How is traffic processed by default if no controller teaming is configured?
APackets and messages destined to the controller are dropped. Flows continue to expire according to their time-outs. This is because the default setting on HP Provision switches is fail-standalone.
BPackets and messages of new flows behave as a legacy switch or router would. Existing flows of this OpenFlow instance are removed. This is because the default setting on HP Provision switches is fail-standalone.
CPackets and messages of new flows behave as a legacy switch or router would. Existing flows of this OpenFlow instance are removed. This is because the default setting on HP Provision switches is fail-secure.
DPackets and messages destined to the controller are dropped. Flows continue to expire according to their time-outs. This is because the default setting on HP Provision switches is fail-secure.
An administrator wants the switches to forward traffic in the legacy mode. If all the controllers fail, which action should the administrator take?
AInstall a packetin rule as the lowest priority rule in the flow table.
BConfigure the instance to fail in standalone mode.
CInstall a packet_out rule as the lowest priority rule in the flow table.
DConfigure the instance to fail in interruption mode.
Refer to the exhibit.
An SDN developer has tried use RSDoc to dis-cover the datapaths in the network. However, the error in the exhibit is displayed. Why is an error returned rather than the datapaths?
ARSDoc does not support the submission of datapath requests until a token has been received oURL.
BA username and password has not been submitted to the controller via RSDoc.
CA Service Token has been submitted to the controller via the Token field in RSDoc.
DAn Auth Token has not been submitted to the controller via the Token field in RSDoc.
An HP VAN SDN Controller team is configured consisting of three controllers, using default settings.
✑ The first controller is configured with IP address 10.1.1.1 and priority 10.
✑ The second controller is configured with IP address 10.1.1.2 and priority 20.
✑ The third controller is configured with IP address 10.1.1.3 and priority 30.
Currently the third controller (IP address 10.1.1.3) is the leader device. An administrator reboots the third controller.
Which controller will be the leader once this controller comes back online?
Athe controller with the IP address 10.1.1.3
Bthe controller with the IP address 10.1.1.1
Cthe controller with the IP address 10.1.1.2
DThe leader role will be shared amongst all team members.
Refer to the exhibit.
Mininet is being used by a developer to test an OpenFlow RESTful API application developed in Python. The developer is able to view the switches in the
OpenFlow topology diagram shown in the exhibit, but no hosts are displayed in the topology diagram. The same behavior is seen when making a RESTful API call for nodes via the RESTful API. Switch information is provided via API calls from the HP VAN SDN Controller, but no nodes are shown.
What is a possible issue?
ATraffic needs to be sent by the Mininet nodes before they will be discovered by the HP VAN SDN Controller.
BThe developer is using the incorrect API calls and needs to ensure that tokens are sent when requesting information from the HP VAN SDN Controller
COpenFlow communication between Mininet and the HP VAN SDN Controller is not functioning correctly. Wireshark can be used to aid with troubleshooting the OpenFlow communication.
DThe Topology Service has been stopped on the HP VAN SDN Controller and needs to be started.
A single HP VAN SDN Controller is used to control OpenFlow enabled switches that operate in virtualization mode. An internal application is installed on the controller that redirects classified traffic to a specific VLAN. The connection between the controller and the network is lost. The HP OpenFlow enabled switches' connection interruption mode is set to standalone mode.
What is the forwarding behavior of the OpenFlow enabled switches?
ABased on the timeout values, the flow entries age out, and only OpenFlow traffic is discarded
BAll flow entries are removed, and traffic is forwarded using normal switch processing.
CAll flow entries are set not to age out, and the classified traffic is still redirected.
DBased on the timeout values, the flow entries are removed from the flow tables, and all traffic is discarded on the switches.
Refer to the exhibit -
A team of HP VAN SDN Controllers has been configured using the controllers shown in the exhibit. Which controller will become the team leader by default?
A192.168.56.2
B192.168.56.7
C192.168.56.5
D192.168.56.6
Refer to exhibit.
Which HP VAN SDN Controller interface can a network administrator use to troubleshoot the southbound interface of the controller and displays the output shown in the exhibit?
