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HP HP2-Z31 Exam Syllabus Topics:

HP Creating HP Software-defined Networks Sample Questions:

1. Two HP OpenFlow switches are connected to an intermediate layer 2 switch running LLDP, but not OpenFlow. This intermediate switch is configured with a single VLAN. Which protocol is used by the OpenFlow switches to discover this multi-hop link?

A) CDP
B) LLDP
C) ND
D) BDDP

2. Why would an architect require an application to be written as an internal application rather than as an external application?

A) greater flexibility of platform choices
B) lower cost of development
C) faster event-driven responses
D) increased program language options

3. Refer to the exhibit.

A network engineer wants to use dpctl to make flow modifications directly on an HP 3800 switch flow table. Can the engineer make the changes using dpctl on the switch in the exhibit?

A) The engineer is able to connect to the switch directly using dpctl. The engineer will then need to use the correct OpenFlow 1 3 syntax to make flow modifications using dpctl.
B) The engineer is unable to connect to the switch directly. Once the correct configuration is completed on the switch, the engineer will be able to connect directly and then use the correct OpenFlow 1.3 syntax to make flow modifications using dpctl
C) The engineer is unable to connect to the switch directly. Dpctl requires OpenFlow 1.0, and (he switch is currently configured to use OpenFlow 1.3.
D) The engineer is able to connect to the switch directly using dpctl, but is unable to use dpctl to update the flow entries on the switch. Ovs-ofctl is required to make flow modifications when using OpenFlow 1.3.

4. Which protocol is used for link discovery when OpenFlow switches are separated by a non-OpenFlow switch?

A) LACP
B) LLDP
C) RSTP
D) BDDP

5. 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?

A) Traffic needs to be sent by the Mininet nodes before they will be discovered by the HP VAN SDN Controller.
B) OpenFlow communication between Mininet and the HP VAN SDN Controller is not functioning correctly. Wireshark can be used to aid with troubleshooting the OpenFlow communication.
C) The Topology Service has been stopped on the HP VAN SDN Controller and needs to be started.
D) The developer is using the incorrect API calls and needs to ensure that tokens are sent when requesting information from the HP VAN SDN Controller

Solutions: