HP2-Z31 Online Practice Questions and Answers

Correct Answer: D

This is an AuthenticationException.

Note: The SDN controller relies on token-based authentication to authenticate its REST APIs. In other words, all REST APIs except the /auth and /rsdoc APIs require an authentication token embedded in an "X-Auth-Token" header to be included with each REST request. The /auth API allows you to obtain a token, while the /rsdoc API provides live REST API documentation information about the controller's REST API.

Reference: HP VAN SDN Controller Administrator Guide

Correct Answer: C

Once a team is configured, the configuration and monitoring of team members and their associated OpenFlow switches is performed by the team manager. If the team manager goes down, the controller with the next highest priority in the team configuration becomes the team manager. Note: Team Management Each controller belonging to a team is a team member. To centralize team management and control, one controller is designated as the team manager. Teaming is configured on one controller and is automatically propagated to the other controllers in the team, regardless of which controller becomes the team manager.

Reference: HP VAN SDN Controller Administrator Guide

Correct Answer: A

A flow table entry is identified by its match fields and priority: the match fields and priority taken together identify a unique flow entry in the flow table. T

Reference: OpenFlow Switch Specification https://www.opennetworking.org/images/stories/downloads/sdn-resources/onf- (page 16) specifications/openflow/openflow-spec-v1.4.0.pdf

Correct Answer: D

LLDP is used to discover direct links between switches and BDDP is used to discover the switches in the same broadcast domain.

Note: Using a link-discovery module, the controller generates both LLDP and broadcast packets (referred to as BDDPs) and sends them to all neighboring switches on a regular basis.

Reference: OpenFlow Controller

Correct Answer: C

Correct Answer: A

Example: Install an Uploaded (STAGED) Application curl --noproxy --header X-Auth-Token: -ksS --fail --url https:// :/sdn/v2.0/apps//action/ -d install --request POST

Incorrect Not B: incomplete command Not C: Use path /sdn/v2.0/... Not D: -H host header not specified. Reference: HP VAN SDN Controller Administrator Guide

Correct Answer: B

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The HP VAN controller supports the following:

Versions 1.0 and 1.3 of OpenFlow on HPN ProVision and Comware switches

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Openflow 1.3.1: Support for multiple flow tables is introduced

Reference: Open Flow 1.3.1 Support: Controller View

Correct Answer: BD

D_ The SDN controller enforces jar-signing validation by default. For an experimental/development environment where unsigned applications need to be deployed, jar- signing validation can be turned off altogether:

Stop the SDN controller: sudo service sdnc stop

2.

Modify the /opt/sdn/virgo/bin/dmk.sh script to include the line "-Dsdn.signedJar=none \"

3.

Start the SDN controller:

sudo service sdnc start

B: Adding Certificates to Jar-Signing Truststore

To deploy other signed applications onto the controller, use the Java keytool to import the public certificate

that was used to sign the application jars into the controller jar-signing truststore (/opt/sdn/admin/

sdnjar_trust.jks):

keytool -importcert -keystore /opt/sdn/admin/sdnjar_trust.jks -file signed_app.cer -alias mysignedcert

The controller needs to be restarted for the new truststore to take effect.

Reference: HP VAN SDN Controller Administrator Guide

Correct Answer: A

LLDP is used to discover direct links between switches and BDDP is used to discover the switches in the same broadcast domain.

Note: Using a link-discovery module, the controller generates both LLDP and broadcast packets (referred to as BDDPs) and sends them to all neighboring switches on a regular basis.

Reference: OpenFlow Controller

Correct Answer: A

For example, the audit log displays software license and teaming activity: Reference: HP VAN SDN Controller Administrator Guide