HP0-Y51 Online Practice Questions and Answers

A company is deploying an HP Unified Wired-Wireless controller solution with an HP BYOD solution. Guests will connect to an open Guest SSID and be redirected by their default gateway to a portal hosted by User Access Manager (UAM). The default gateway is a Comware routing device.

The administrator has set up portal authentication on the Comware device to implement the redirect. The administrator asks the BYOD solution designer about the correct RADIUS and domain settings for portal authentication on the switch. What should the BYOD solution designer explain to the administrator?

A. The administrator does not need to make any changes as long as the switch is managed by IMC. UAM will automatically access the managed switch and configure the correct settings.

B. These settings are not necessary because the UAM BYOD portal automatically handles the authentication and then forces the guest to reconnect the SSID and authenticate with MAC-Auth.

C. The RADIUS scheme and domain must be configured with the same settings that would be used for traditional portal authentication to UAM. In addition, the RADIUS scheme must use the standard server type.

D. The RADIUS scheme and domain must be configured with the same settings that would be used for traditional portal authentication to UAM. In addition, the RADIUS scheme must enable transparent MAC authentication.

An administrator plans to deploy a wireless network, which might need to support a mix of 802.11g and 802.11n clients in the 2.4 GHz frequency. The administrator wants to prioritize transmissions for 802.11 n clients. Which 2.4 GHz radio setting helps to prevent slow clients from taking more than their share of transmission time?

A. Set up the channel reuse option.

B. Set up the fair scheduling option.

C. Set the mandatory data rate for 802.11g as low as possible.

D. Set the multicast data rate for 802.11n as low as possible.

What correctly describes the role of OpenFlow in an SDN solution?

A. OpenFlow regulates the communications among teamed SDN controllers, as well as between an SDN controller and a network infrastructure device

B. OpenFlow integrates the SDN controller into a larger management suite such as that provided in an HP CloudSystern solution.

C. OpenFlow is a communication protocol that an SDN controller can use to control devices at the network infrastructure layer.

D. OpenFlow is the open standard technology that regulates SDN control plane and application plane communications.

Table of Acronyms

What is a benefit of enabling tandem multicast replication for SPBM?

A. SPBM switches can send multicasts as both multicasts and unicasts, increasing reliability for the transmission.

B. Multicasts follow a better path to each destination than they would with head-end replication.

C. An ingress SPBM switch does not have the load of replicating and forwarding many copies of a multicast.

D. An ingress SPBM switch can load-balance multicasts over multiple equal-cost paths to a destination, even when the multicast belong to the same I-SID.

How does the HP Optimizer SDN Application -Microsoft Lync enhance QoS for Microsoft Lync?

A. The application registers as a packet listener for all IP packets in the HP VAN SDN Controller. It creates reactive flows for all user traffic, including prioritized ones for UCandC traffic.

B. The application pre-provisions several flows on all HP switches, which redirect all IP traffic to the HP VAN SDN Controller. Each TCP session is then assigned the correct priority before it can be established.

C. The application receives RESTful API calls from a plug-in to Lync. It uses information obtained to create proactive prioritized flows for UC and traffic.

D. The application registers as a packet listener for TCP 5060 in the HP VAN SDN Controller. It uses packets received to create reactive prioritized flows for UC and C traffic.

A company is adding an HP BYOD solution. User Access Manager (UAM) should provide the portal in which guests register their own accounts. Guests should only have to register and log in once. After that, the guest device automatically logs in by MAC address.

UAM has these settings:

User account BYOD Anonymous = Assigned to Access service 1

Guest access service = Access service 2

Access service 1: Default access policy = Access policy 1

Access policy 1: No certificate authentication and User VLAN 8

Access service 2. Default access policy = Access policy 2

Access policy 2: No certificate authentication and User VLAN 88

How should the administrator configure portal authentication (HTTP redirection)?

A. Set up portal authentication to UAM in the Unified Wired-Wireless controller VLAN 88 settings

B. Set up portal authentication to UAM in the Unified Wired-Wireless controller Guest SSID settings.

C. Set up portal authentication on the default gateway for VLAN 88.

D. Set up portal authentication to UAM on the default gateway for VLAN 8.

HP Unified Wired-Wireless controllers support wireless Intrusion Detection System (IDS)/intrusion prevention system (IPS) features. An HP AP radio is configured to participate in this solution in hybrid mode. Which functions can the hybrid mode radio fulfill?

A. Can support wireless clients and scan wireless traffic.

B. It can support wireless clients, scan wireless traffic, and implement countermeasures

C. It can implement countermeasures and scan wireless traffic.

D. It can scan wireless traffic and wired traffic.

A company is considering TRILL and SPBM as options for the data center architecture. The company is interested in how the solution handles load-balancing unicast traffic. What correctly describes the TRILL and SPBM options?

A. TRILL can use Equal Cost Multi-Path (ECMP). SPBM selects one best path to each SPBM switch in each B-VLAN, but can select different paths for different B-VLANs

B. SPBM can use Equal Cost Multi-Path (ECMP). TRILL does not support ECMP for unicasts, but can load-balance multicast, depending on the tree configuration.

C. Neither SPBM nor TRILL can use Equal Cost Multi-Path (ECMP). Both technologies can send traffic for different VLAN VLANs or I-SIDs on different links.

D. Both SPBM and TRILL can use Equal Cost Multi-Path (ECMP) to load-balance unicasts. provided that ECMP is enable at hardware level.

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.

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