HP HP2-Z31 Online Practice Questions and Exam Preparation

HP HP2-Z31 Online Questions & Answers

• Question 71:

  An administrator wants to increase the number of log files held by the HP VAN SDN Controller. What would the administrator need to do to change this?

  A. Modify the /opt/sdn/virgo/configuration/serviceability.xml configuration file.
  B. Log in to the Virgo console and change the logging settings.
  C. Adjust the logging setting via the Support Logs web interface.
  D. Modify the /opt/sdn/virgo/bin/dmk.sh script.
  C. Adjust the logging setting via the Support Logs web interface.

  ---

  The Support Logs function automatically maintains an internal record of events of interest from the operations of an active SDN controller.

  Configure the Support Log for Queue Size

  The default queue size is 100 lines. To configure a different queue size, change the value for the max.display.rows key in the adm.log.impl.LogManager Configurations component.

  Reference: HP VAN SDN Controller Administrator Guide

• Question 72:

  Refer to the exhibit.

  

  OpenFlow has been enabled on an HP switch and is communicating with an HP VAN SDN Controller The network administrator has checked the switch flow table entries via the controller graphical user interface, but is unsure of the format. The administrator has taken a screenshot and sent you a copy. Why does the flow table display n/a?

  A. The switch has negotiated to use OpenFlow 1.0 with the controller for this instance.
  B. The switch has negotiated to use OpenFlow 1.3 with the controller for this instance,
  C. The switch has negotiated to use standard mode with the controller for this OpenFlow instance.
  D. The switch has negotiated to use ip-control-table-mode with the controller for this OpenFlow instance.
  A. The switch has negotiated to use OpenFlow 1.0 with the controller for this instance.

  ---

  Table ID n/a indicates that OpenFlow 1.0 is in use. Example of the Flows View for a Specific OpenFlow Device

  

  The "Table ID" field applies to OpenFlow 1.3 and greater, but not to OpenFlow 1.0. Reference: HP VAN SDN Controller Administrator Guide

• Question 73:

  A multicast application is used in a customer's environment that relies on IGMP. On an edge switch an Openflow 1.3 instance is configured in aggregation mode. By default, what happens to the IGMP traffic if no matching flow entry exists?

  A. IGMP traffic is forwarded on the data plane.
  B. IGMP traffic is forwarded to the SON Controller.
  C. IGMP traffic is dropped.
  D. IGMP traffic is forwarded on the control plane.
  C. IGMP traffic is dropped.

  ---

  In Aggregation mode, all VLANs in the switch are part of an OpenFlow instance. When Aggregation is configured, there is only OpenFlow traffic, no production traffic. Reference: HP OpenFlow 1.3 Administrator Guide, Wired Switches K/KA/KB/WB 15.15

• Question 74:

  What are internal applications that are included with the HP VAN SDN Controller? (Select three.)

  A. Capacity Planner
  B. OpenFlow Daemon
  C. Topology Manager
  D. Node Manager
  E. Path Daemon
  F. Time Daemon
  C. Topology Manager
  D. Node Manager
  E. Path Daemon

  ---

  The HP VAN SDN Controller ships with a default set of core network service components, which provide an out-of-box experience in terms of enabling connectivity across network applications in the Openflow network. They include:

  

  Topology Manager

  

  Node Manager

  

  Path Daemon

  

  OpenFlow Node Discovery

  

  Link Manager

  

  OpenFlow Link Discovery

  Reference: HP VAN SDN Controller Programming Guide

• Question 75:

  Which Open Flow plane is responsible for forwarding the packets?

  A. Control plane
  B. Application plane
  C. Management plane
  D. Data plane
  D. Data plane

  ---

  The forwarding table is delivered to the data plane by the management plane as part of the device operating system. Thus when an Ethernet frame arrives on the switch interface, the data plane then forwards it to output port.

  Note: OpenFlow defines a standard for sending flow rules to network devices so that the Control Plane can add them to the forwarding table for the Data Plane.

  Incorrect:

  Not A: The control plane will use the routing table to build the forwarding table used by data plane. Not C: The Management Plane handles functions such device management, firmware updates, SNMP and external configuration via the CLI.

  Reference: OpenFlow and Software Defined Networking: Is it Routing or Switching ?

• Question 76:

  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?

  A. 192.168.56.2
  B. 192.168.56.7
  C. 192.168.56.5
  D. 192.168.56.6
  C. 192.168.56.5

  ---

  The controller with the highest priority.

  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

• Question 77:

  Refer to the exhibits.

  

  

  

  What happens when the switch shown in the exhibit loses connectivity to the HP VAN SDN Controller?

  A. The switch removes all flow entries and reverts to the normal forwarding process,
  B. The switch removes all flow entries and continues to use the OpenFlow pipeline.
  C. The switch forwards traffic based on flow tables and does not delete unexpired flow entries.
  D. The switch uses the normal forwarding process and does not delete the flow entries.
  C. The switch forwards traffic based on flow tables and does not delete unexpired flow entries.

• Question 78:

  Refer to the exhibit.

  

  (page 21)

  http://h20628.www2.hp.com/km-ext/kmcsdirect/emr_na-c03512348-4.pdf

  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?

  A. RSDoc does not support the submission of datapath requests until a token has been received oURL.
  B. A username and password has not been submitted to the controller via RSDoc.
  C. A Service Token has been submitted to the controller via the Token field in RSDoc.
  D. An Auth Token has not been submitted to the controller via the Token field in RSDoc.
  D. An Auth Token has not been submitted to the controller via the Token field in RSDoc.

  ---

  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

• Question 79:

  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.)

  A. HP VAN SDN Ctrl 100-node E-LTU
  B. HP VAN SDN Ctrl HA E-LTU
  C. HP VAN SDN Ctrl Base SWw/ 100-node E-LTU
  D. HP VAN SDN Ctrl Base SW w/ 50-node E-LTU
  E. HP VAN SDN Ctrl 50-node E-LTU
  D. HP VAN SDN Ctrl Base SW w/ 50-node E-LTU
  E. HP VAN SDN Ctrl 50-node E-LTU

  ---

  The following licenses are available for the HP VAN SDN Controller:

  * (D) Base controller license (HP VAN SDN Ctrl Base SW w/ 50node E-LTU)--Enables the HP VAN SDN Controller to communicate with up to 50 OpenFlow switches. This license is a prerequisite for the other licenses, and must be installed

  for you to receive technical support during your first 90 days of use.

  *(E) Base controller plus 50 "Add Nodes" license (HP VAN SDN Ctrl 50node E-LTU)-- Extends by 50 the number of switches the base controller can communicate with using OpenFlow. In addition, you can install the Add Nodes license

  multiple times. For example:

  If you install one Add Nodes license on an HP VAN SDN Controller with a base license present, the total number of OpenFlow switches supported is 100. If you install three Add Nodes licenses on an HP VAN SDN controller with a base

  license, the total number of OpenFlow switches supported is 200.

  Etc.

  Reference: HP VAN SDN Controller License Registration and Activation Guide

• Question 80:

  What is a key advantage of implementing malware protection by using the HP Network Protector SDN application?

  A. To provide central management of antivirus software
  B. To provide rule-based access control
  C. To provide VLAN assignment without supplicant
  D. To provide clientless operation
  B. To provide rule-based access control

  ---

  About VLAN group policies Policies are a collection of filters or rules that provide a method for setting up security configuration options for VLAN groups. You can create customized policies for each VLAN group based on the requirements and the threat type for each group.

  You can customize the policies for the groups by setting the reputation scores. You can set up policies for each group to protect your network from the following threat types: Botnet, Malware, etc Reference: HP Network Protector SDN Application Administrator Guide