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HP Building HP SDN and FlexNetwork Solutions Sample Questions:

1. Refer to the exhibit.

A company has HP APs that are managed by the two Unified Wired-Wireless controllers. Wireless
users use Wi-Fi Protected access (WPA2) and authenticate with 802.1X to HP Access Manager (UAM). The SSID uses centralized forwarding. Users need to be able to roam seamlessly from area 1 to area 2.
Which step helps to meet these needs?

A) Change the security mode to preshared key (PSK) and enable opportunistic key change (also called "fast roaming").
B) Set up enable a roam that includes both controllers.
C) Configure controller 1 as a backup controller for APs in area; configure controller 2 as a backup controller for APs in area1.
D) Configure local forwarding for the SSID on both controllers.

2. Table of acronyms

Refer to the exhibit.

An administrator is setting up an MPLS and L2VPN virtual circuit (VC) between customer Site 1 and Site 2. The administrator is creating a global cross-connect group, which uses LDP signaling, on PE-1. Which two elements are required to do this?

A) An AC connection (specifies a service instance on g1/0/1) and a peer (PE-2)
B) A peer (PE-2) and a VPN instance (associated with g1/0/1)
C) A peer (PE-2) and a VLAN ID (access VLAN or. g1/0/1)
D) An AC connection (specifies a service instance on g1/0/1) and a VPN instance (associated with g1/0/1)

3. A company has an external SDN application that works with an HP VAN SDN Controller. The application programmer has tried testing several RESTful API calls but receives authentication errors. What does the administrator need to explain to the programmer?

A) Every RESTful API call must include an X-Auth token. The token can be obtained by sending a calf with valid credentials https.Controller_IP.8443/sdn/v2.0/auth
B) Every RESTful API call must include an X-Auth token. The token must be created by a valid certification authority (CA) and installed on both the controller and external application in advance.
C) The application must be installed with a certificate that is signed by the same certification authority (CA) that signed the VAN SDN Controller certificate.
D) Every RESTful API call must include a valid username and password. The only exception is when the AuthRequired parameter is set to false in restful conf file.

4. 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) 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.
B) Both SPBM and TRILL can use Equal Cost Multi-Path (ECMP) to load-balance unicasts.
provided that ECMP is enable at hardware level.
C) 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
D) 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.

5. Refer to the exhibit.

The HP Comware switch places VLAN 2, which is associated with 10 1.2.0/24, in OpenFlow instance 1. The switch supports IP routing and is configure with the default gateway IP address in VLAN 2. An SDN application has created the flow entry shown in the exhibit to route traffic from 10.1.2.0/24 to 10.1.3.0/24.
The exhibit does not show the output interface for the flow. Which output interface supports the needs of this scenario?

A) Controller
B) Any port in the controller VLAN
C) Any port that is a member of VLAN 2
D) Normal

Solutions: