HP HP2-Z31 Online Practice Questions and Exam Preparation

HP HP2-Z31 Online Questions & Answers

• Question 11:

  An administrator wants to configure the HP Network Protector SDN Application to allow access to a specific corporate website when a host is quarantined. The DNS response should still be NXDomain for websites such as piratesmustdie.com. What should the administrator configured?

  A. Permit statement on the ACLs that are pushed to the switches
  B. ACL list with the IP address of the website
  C. Ensure that OpenFlow 1.3 is enabled on the switch and that no redirection server address is specified
  D. DNS Response Type to DNS redirection server address
  D. DNS Response Type to DNS redirection server address

  ---

  Setting policies to quarantine hosts

  The application quarantines a host if the host satisfies the quarantine criteria set in the general threshold policy. You can set policies to direct the host to a safe site and access limited resources on the network. To set the general policies,

  complete the following steps.

  1.

  Select Policies Policy Enforcement Settings. The Policies/Policy Enforcement Settings page appears.

  2.

  Click the icon to edit the policy enforcement settings.

  3.

  Select Non-existent Domain option to display a message that the domain does not exist.

  4.

  Enter time in seconds in the TTL(sec) text box to cache the response.

  5.

  Select Redirection Server option to redirect the host to a known safe site.

  6.

  Enter the domain name or IP address of the known safe site in the DNS Redirection Server Address text box.

  7.

  Click icon to add the domain name or IP address of the resources that the host can access when it is quarantined.

  8.

  Click icon to save the setting.

  Reference: HP Network Protector SDN Application Administrator Guide

• Question 12:

  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?

  A. Based on the timeout values, the flow entries age out, and only OpenFlow traffic is discarded
  B. All flow entries are removed, and traffic is forwarded using normal switch processing.
  C. All flow entries are set not to age out, and the classified traffic is still redirected.
  D. Based on the timeout values, the flow entries are removed from the flow tables, and all traffic is discarded on the switches.
  B. All flow entries are removed, and traffic is forwarded using normal switch processing.

  ---

  OpenFlow instance connection interruption mode

  You can set the type of behavior when the switch loses connection with the controller.

  fail-standalone

  If the switch loses connection with all of the controllers, packets and messages of new flows behave as a legacy switch or router would. Existing flows of this OpenFlow instance are removed.

  Reference: HP OpenFlow Switches

  (page 21)

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

• Question 13:

  Which HP IMC SDN Manager functionality provides a logical overview of the OpenFlow network?

  A. SDN Manager reports
  B. SDN Manager dashboard
  C. SDN Manager flow entry management
  D. SDN Manager OpenFlow topology
  B. SDN Manager dashboard

  ---

  HP IMC Dashboard figure:

  

  My Network view (within SDN Manager Dashboard):

  

  Reference: Review: HP Intelligent Management Center (IMC)

• Question 14:

  Which services does HP IMC SDN Manager provide? (Select two.)

  A. Managing switch listeners
  B. Updating Topology Service discovery protocol
  C. Managing OpenFlow enabled SDN resources
  D. Creating and maintaining flow policies
  E. Managing and maintaining application awareness
  C. Managing OpenFlow enabled SDN resources
  D. Creating and maintaining flow policies

  ---

  *

  HP VAN SDN Manager provides the following:

  / Consistent management experience across SDN and traditional networks / Configuration, monitoring, and policy management for a software-defined network / OpenFlow switch management for quick troubleshooting and deployment

  *

  SDN management

  HP Provides a complete SDN management solution that:

  / Delivers network agility through rapid provisioning and automation of network policy enforcement and enabling SDN deployments.

  / Accelerates application deployment through rapid provisioning of server connectivity. / Enables service agility and velocity from access to core through network resource provisioning. / Provides comprehensive management of all SDN

  layers.

  Reference: Mock RFI for Enterprise SDN Solutions

• Question 15:

  Which HP IMC SDN Manager functionally provides a detailed overview of flow entry history?

  A. SDN Manager service flow management
  B. SDN Manager Open Flow device management
  C. SDN Manager dashboard
  D. SDN Manager flow entry management
  A. SDN Manager service flow management

  ---

  Flow Management:

  *

  Delivers History Flow Entry records flow entry used before to help administrators audit flow policy change

  *

  Displays the list of all current Flow entry in OF network, including Match Field, Instruction and other statistics.

  *

  Shows detailed flow service information and flow traffic and trend in flow entry detail page

  *

  Provides shortcut to locate flow to topology show device and link status Reference: HP IMC Virtual Application Networks Software-defined Networking Manager Software

• Question 16:

  What is used by the HP VAN SDN Controllers for internal communication between controllers?

  A. REST API Token
  B. Admin ToKen
  C. Auth ToKen
  D. Service Token
  D. Service Token

  ---

  The Service token is used for internal communication between controllers and is not exposed to the user.

  Reference: HP VAN SDN Controller Administrator Guide, Service and Admin Tokens

• Question 17:

  What are challenges when selecting traffic from UCandC soft devices for marking, in order to apply the appropriate prioritization? (Select two.)

  A. UCandC traffic uses dynamic port numbers.
  B. UCandC traffic is not peer-to-peer
  C. UCandC traffic is routable.
  D. UCandC traffic uses well-known port numbers.
  E. UCandC traffic can share a port, mac, and VLAN combination with non-UCandC traffic.
  C. UCandC traffic is routable.
  D. UCandC traffic uses well-known port numbers.

  ---

  C: UCandC signaling can be routed through centralized UCandC infrastructure components and that all interactions.

  D (not A): UCandC signaling traffic is identified using the well know transport and port numbers used by the UCandC signaling protocol.

  Reference: Automating QoS

  (page 7, bullet # 2)

  http://johnacook.files.wordpress.com/2014/03/2014_02_27_use_case.pdf

• Question 18:

  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?

  A. Flush
  B. Push
  C. Barrier
  D. Force
  A. Flush

  ---

  flush()

  Pushes buffered data out the Stream; this is NOT guranteed to flush all data, multiple flush() calls may be required, until needFlush() returns false.

  Reference: org.openflow.io, Interface OFMessageOutStream

• Question 19:

  How does an HP VAN SDN Controller team provide high availability for external applications?

  A. By using the southbound controller interface tied to a region configuration
  B. By using the southbound controller interface with a secondary interface
  C. By using the northbound controller interface tied to a region configuration
  D. By using the northbound controller interface with a secondary interface
  C. By using the northbound controller interface tied to a region configuration

  ---

  *

  Northbound API Relative to figure 1 below, the Northbound API is the API that enables communications between the control layer and the application layer (external business applications.

  Southbound API

  Relative to Figure 1 below, the Southbound API is the API that enables communications between the control layer and the infrastructure layer (OpenFlow).

  *

  Putting the region configurations in place in a controller team ensures seamless failover and failback among the configured controllers for the specified network devices in a region. That is, when a master controller experiences a fault, the Role Orchestration Service ensures that a slave controller immediately assumes the master role over the group of network devices to which the failed controller was in the master role.

  Figure 1. ONF's SDN architecture

  

  Reference: Technical white paper, Mock RFI for Enterprise SDN Solutions Reference: HP VAN SDN Controller Administrator Guide

• Question 20:

  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?

  A. https://192.168.56.7:8443/api
  B. https://192.168.56.7:8080/sdn/ui
  C. https://192.168.56.7:8443/sdn/ui
  D. http://192.168.56.7:8443/sdn/ui
  C. https://192.168.56.7:8443/sdn/ui

  ---

  Start the SDN Graphical User Interface

  1.

  Use the Google Chrome browser to access the controller's GUI at the controller IP address:

  https://:8443/sdn/ui

  For example:

  https://127.0.0.1:8443/sdn/ui

  2.

  Enter user name and password credentials, then click Login.

  The default user name is "sdn".

  The default password is "skyline".

  The main controller GUI screen then appears:

  

  Reference: HP VAN SDN Controller Administrator Guide