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HP0-Y51 Building HP SDN and FlexNetwork Solutions

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HP · HP0-Y51

Free HP0-Y51 Exam Dumps Preview

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Question 1

Single choice

A company has three HP VAN SDN Controllers, which will be deployed in a team. The administrator is deciding whether to create one region or three regions.

What is a benefit of creating three regions rather than one region?

A
The team can load balance the team leader role, increasing the total number of RESTful API and Java API calls that the solution can handle.
B
The team can provide high availability for SDN application functions rather than only for the OpenFlow controller functions rather than only for the OpenFlow controller functions.
C
The team can load balance the Master OpenFlow controller role, increasing the total number of packetin messages per second that the solution can handle.
D
The team can provide high availability for all the OpenFlow controller functions rather than only for the SDN application functions.

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Correct answerC

Question 2

Single choice

An administrator has set up an HP BYOD solution for an HP MSM760 controller and its APs.

These are the specifications:

Guests should only have to register and log in once After that, the guest device should be automatically logged in.
User Access Manager (UAM) provides the portal in which guests register their own accounts.
The MSM760 is connected to a Comware switch, which redirects unregistered guests to the UAM portal.

Currently guests can reach the portal, register for their accounts, and log in. However, guests report that they cannot reach the Internet after they log in. When the administrator asks the guests to disconnect from the wireless network and then connect again, they succeed in reaching the Internet.

What could fix this problem?

A
In the Comware switch settings, add the guest router to the free rule list
B
In the DHCP scope for the onboardmg VLAN, lower the lease time to about 10 seconds.
C
Configure SOAP settings for the MSM controller on UAM.
D
Configure the Comware switch to accept dynamic authorization updates from UAM.

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Correct answerC

Question 3

Single choice

When should an administrator enable hybrid mode on an HP VAN SDN Controller?

A
When the controller must manage HP Provision switches that use virtualization mode to enable OpenFlow on some VLANs but not on others
B
When the controller must manage HP Provision switches that operate in passive mode
C
When the controller must manage Mininet switches in a developer environment and HP switches in a production environment
D
When the controller must manage OpenFlow-enabled switches that support both OpenFlow 1.0 and 1.3

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Correct answerD

Explanation

References:
http://h20564.www2.hp.com/hpsc/doc/public/display?docId=c04383845
(page 73)

Question 4

Single choice

Refer to the exhibit.

A company has many dual-radio APs that are deployed relatively closely together. They are controlled by an HP Unified Wired-Wireless controller. The administrator wants to implement load balancing among the radios on different APs.

How should the administrator implement load balancing?

A
Implement group-based load balancing by adding radios on different APs to the group.
B
Implement radio-based load balancing by adding APs to the radio templates.
C
Implement AP-based load balancing on the individual APs.
D
Implement AP-based load balancing on the radios of the individual APs.

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Correct answerA

Question 5

Single choice

Refer to the exhibit.

The switches shown in the exhibit use the HP VAN SDN Controller as the OpenFlow controller. They connect to the controller on their out-of-band management (OOBM) ports, but these connections are not shown in the exhibit. The switches also run spanning tree protocol. An SDN application installed on the HP VAN SDN Controller is programmed to discover live ports, find redundant paths, and create loopfree paths for traffic infrastructure shown in the exhibit. However the application is not able to complete these functions because the switches are reporting some ports as blocked.

What should the administrator do to let the application create the loopfree paths?

A
Disable spanning tree on the OpenFlow-enabled switches and do not configure link aggregation.
B
Enable spanning tree on the OpenFlow-enabled switches but set the application as the spanning tree flood parameter controller.
C
Enable spanning tree on the OpenFlow-enabled switches and configure all of the redundant links as egress-only-ports
D
Disable spanning tree on the OpenFlow-enabled switches and configure the redundant links as static link aggregations

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Correct answerD

Question 6

Single choice

What is one benefit of the HP patent for Adaptive Multicast channel width and Guard Interval 802.11n?

A
HP APs can bind up to three channels together for any multicast transmissions in the 5 GHz frequency range, including 802.11a and 802.11n.
B
HP APs can adjust whether they send multicasts over a bonded channel based on the 802.11 standards supported on device in the current environment.
C
HP APs can adapt the precise frequency on which they transmit to each client, enabling them to transmit multicasts to more than one clients at the same time.
D
HP APs can transmit multicasts as broadcasts or unicasts, helping to ensure higher transmission rates and more reliable delivery for multicast.

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Correct answerB

Question 7

Single choice

Table of Acronyms

An administrator has configured an HP Comware IRF virtual device to support FCoE in Fibre Channel Forwarder (FCF) mode. The IRF device supports VLAN 1, 10, 20, and 30.

The device requires two virtual SANs (VSANs), VSAN 1 and VSAN 2. An individual server might connect to for binding the VSANs.

What is valid configuration to VLANs?

A
VSAN 1 and VSAN 2 to VLAN 10
B
VSAN 1 and VSAN 2 to VLAN 1; VSAN 1 to VLAN 10; VSAN 2 to VLAN 20
C
VSAN 1 and VSAN 2 to VLAN 10; VSAN 1 and VSAN 2 to VLAN 20
D
VSAN 1 to VLAN 10; VSAN 2 to VLAN 20

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Correct answerD

Question 8

Single choice

Table of Acronyms

Refer to the exhibit

An administrator wants to connect four data centers using HP EVI.

What is the correct setup for the EVI tunnel interfaces?

A
Three EVI tunnel interfaces on each EVI edge device-one EVI tunnel interface is required for each GRE tunnel in the mesh
B
One EVI tunnel interface on Switch 1, which will be configured as the ENDP server, and no interfaces on the other switches
C
Three EVI tunnel interfaces on Switch 1, which will act as the hub. and one EVI tunnel interface each on the other switches
D
One EVI tunnel interface on each EVI edge device--the devices automatically establish GRE tunnels between these interfaces

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Correct answerC

Question 9

Single choice

A Company has APs that are deployed relatively close together. These APs are controlled by an HP Unified Wired-Wireless controller.

Which setting helps to prevent the APs from interfering with each other while also letting the APs extend their coverage area if one of the AP fails?

A
Channel reuse
B
Dynamic frequency selection (DFS)
C
Transmit power control (TPC)
D
Fair scheduling

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Correct answerA

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Building HP SDN and FlexNetwork Solutions

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