HP HP2-Z31 Online Practice Questions and Exam Preparation

HP HP2-Z31 Online Questions & Answers

• Question 81:

  What is the minimum number of HP VAN SDN Controllers supported in a team?

  A. One
  B. Two
  C. Three
  D. Four
  C. Three

  ---

  The minimum number of team members for an HP VAN SDN Controller team is three. Reference: HP VAN SDN Controller Installation Guide

• Question 82:

  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?

  A. the controller with the IP address 10.1.1.3
  B. the controller with the IP address 10.1.1.1
  C. the controller with the IP address 10.1.1.2
  D. The leader role will be shared amongst all team members.
  C. the controller with the IP address 10.1.1.2

  ---

  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 83:

  Refer to the exhibit.

  

  A team of HP VAN SDN Controllers has been configured. In addition, regions have been configured. The switch shown in the exhibit has two OpenFlow sessions as follows:

  Controller1 - Master Controller2 - Slave

  Controller1 is rebooted What happens?

  A. The role orchestration service detects Controller1 failure, and Controller2 becomes the master. Once Controller1 rejoins the team, it becomes the master, and Controller2 reverts to being the slave.
  B. The role orchestration service detects Controller1 failure, and Controlle2 becomes the master. Once Controller1 rejoins the team, it joins as the slave controller.
  C. The role orchestration service detects Controller1 failure. Controller2 becomes the master, and Controller1 becomes the slave. Once Controller1 rejoins the team. It joins as the master and Controller2 becomes the slave.
  D. The role orchestration service detects Controller1 failure. Controller2 becomes the master and Controller1 becomes the slave. Once Controller1 rejoins the team it no longer communicates with the switch.
  A. The role orchestration service detects Controller1 failure, and Controller2 becomes the master. Once Controller1 rejoins the team, it becomes the master, and Controller2 reverts to being the slave.

  ---

  *

  Failover (step 1)

  ROS (role orchestration service) triggers the failover operation in two cases:

  / Controller failure:

  / Device disconnect:

  The ROS instance in a controller is notified of a communication failure with network device(s) through the Controller Service notifications. It instantly communicates with all ROS instances in the team to determine if the network device(s) in

  question are still connected to any of the backup (slave) controllers within the team. If that is the case, it elects one of the slaves to assume the master role over the affected network device(s).

  *

  Failback (step 2)

  When the configured master recovers from a failure and rejoins the team, or when the connection from the disconnected device(s) with the original master is resumed, ROS initiates a failback operation in which the master role is restored to

  the configured master as defined in the region definition.

  Reference: HP VAN SDN Controller Administrator Guide

• Question 84:

  Which component of OpenStack is used by the HP VAN SDN Controller for identity services?

  A. Glance
  B. Keystone
  C. Swift
  D. Horizon
  B. Keystone

  ---

  The SDN controller uses Openstack Keystone as an identity management for managing users, generating tokens, as well as token validation.

  Reference: HP VAN SDN Controller Administrator Guide

• Question 85:

  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. 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
  C. 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.
  D. The Topology Service has been stopped on the HP VAN SDN Controller and needs to be started.
  D. The Topology Service has been stopped on the HP VAN SDN Controller and needs to be started.

  ---

  The Topology service is used to create a network graph and compute the shortest path between two hosts.

  Note: Mininet is a network emulator that can create and emulate an entire OpenFlow network locally on your PC.

  Incorrect:

  Not C: No need to analyze packages.

  Wireshark is a free and open-source packet analyzer. It is used for network troubleshooting, analysis, software and communications protocol development, and education.

  Reference: HP VAN SDN Controller Administrator Guide

• Question 86:

  What is a key feature of cloud computing?

  A. server virtualization
  B. network management virtualization
  C. user self-provisioning
  D. software-defined networking
  A. server virtualization

  ---

  Virtualization is a foundational element of cloud computing and helps deliver on the value of cloud computing. Cloud computing is the delivery of shared computing resources, software or data -- as a service and on-demand through the Internet Reference: Virtualization vs. Cloud Computing: What's the Difference? http://www.businessnewsdaily.com/5791-virtualization-vs-cloud-computing.html

• Question 87:

  A controller is able to register for asynchronous messages from an OpenFlow switch, but when the controller attempts a flow_mod. the OpenFlow command is rejected. Which mode is the controller in from the switch point of view?

  A. Leader
  B. Slave
  C. Master
  D. Equal
  B. Slave

• Question 88:

  A network administrator wants to back up the HP VAN SDN Controller. Which files will need to be downloaded and kept together? (Select two.)

  A. sdn_controller_backcup_.rar
  B. sdn_concroller_backup_.rar.MD5
  C. sdn_cont;roller_backcup_.zip
  D. sdn_controller_backcup_.zip.MD5
  E. sdn controller backup .tgz
  C. sdn_cont;roller_backcup_.zip
  D. sdn_controller_backcup_.zip.MD5

  ---

  Download a Backup From the Controller to Another Location Both the .zip file and the .MD5 (checksum) file (zip.MD5) should be downloaded to the same, secure location. Choose the correct name now; you cannot rename the files later Details (check the file extensions):

  1.

  Download the Backup .zip File:

  curl --noproxy --header "X-Auth-Token:" --fail -ksSfL --request GET --url "https://:8443/sdn/v2.0/systems//backup?csum=false" > .zip

  2.

  Download the backup .MD5 (Checksum) File

  curl --noproxy --header "X-Auth-Token:" --fail -ksSfL --request GET --url "https://:8443/sdn/v2.0/systems//backup?csum=true" > .zip.MD5

  Reference: HP VAN SDN Controller Administrator Guide

• Question 89:

  What are the addressing requirements for an HP VAN SDN Controller team?

  A. A team requires two IP addresses for each controller, plus one IP address assigned to the team.
  B. A team requires one IP address for each controller, plus one IP address assigned to the team.
  C. A team requires one IP address, and members communicate using their MAC addresses.
  D. A team requires one IP address for each controller; each is configured with the same multicast address.
  B. A team requires one IP address for each controller, plus one IP address assigned to the team.

  ---

  A team requires one IP address for each controller, plus one IP address assigned to the team. If the current team manager goes down, the failover process includes keeping the team IP address active on the new team manager. Reference: HP VAN SDN Controller Administrator Guide

  http://h20566.www2.hp.com/portal/site/hpsc/template.BINARYPORTLET/public/kb/docDisplay/resourc e.process/? spf_p.tpst=kbDocDisplay_ws_BIandspf_p.rid_kbDocDisplay=docDisplayResURLandjavax.portlet.begCach eTok=com.vignette.cachetokenandspf_p.rst_kbDocDisplay=wsrp-resourceState%3DdocId%253Demr_na- (page 54) c04003114-2%257CdocLocale%253Dandjavax.portlet.endCacheTok=com.vignette.cachetoken

• Question 90:

  What are advantages of using the HP Network Protector SDN application in a BYOD Network for Malware protection? (Select two.)

  A. To provide updates to filtered host lists
  B. To provide centralized management of client based firewall
  C. To provide full HIPS functionality for BYOD devices
  D. To provide security at the network core to provide prevention before connection
  C. To provide full HIPS functionality for BYOD devices
  D. To provide security at the network core to provide prevention before connection

  ---

  You can set general policies for all the hosts in the network to manage and mitigate malicious traffic and host name requests. General policies enable the application to detect changes in network traffic patterns. The general policies prevent the host from acting like a botnet and being controlled by external malicious computers.

  When network traffic from a host exceeds the policy limits, you can configure application to perform one of the following actions:

  

  Block

  

  Block and notify

  

  Quarantine

  

  Quarantine and Notify

  Note: HIPS Short for host-based intrusion prevention system, HIPS is an IPS or intrusion prevention system designed for security over host-based systems where intrusions and infections are dealt with at the individual workstation level to provide a more effective level of security. Reference: HP Network Protector SDN Application Administrator Guide