HP0-Y47 Online Practice Questions and Answers

Questions 4

Match the characteristic to the routing protocol.

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Questions 5

For which use case is a basic or standard access control list (ACL) appropriate?

A. Controlling which devices can access other devices based on the MAC addresses

B. Controlling which devices can access other devices based on the IP protocol number

C. Controlling which devices can access other devices based on the IP addresses

D. Controlling which devices can access other devices based on the source VLAN tag

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Questions 6

A network administrator wants to configure Open Shortest Path (OSPF) MD5 authentication on VLAN 100 on an HP ProVision switch. The administrator has created a global MD5 key chain with an ID and key string that matches the neighbor's. which additional step must the administrator complete to accomplish this?

A. Set OSPF authentication to MD5 mode in the OSPF area settings

B. Activate MD5 key rotation globally

C. Enable MD5 key rotation globally

D. Assign this MD5 key to OSPF VLAN 100

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Questions 7

An HP Provision switch port is implementing MAC Authentication (MAC-Auth) to a RADIUS server. A device connects to the port, and the switch submits a RADIUS Access-Request to the server. What correctly describes how the switch determines the username and password for the request?

A. Depending on the configuration, the switch sends the device MAC address for the username or a configured username. It sends the device MAC address for the password or a configured password

B. The switch always sends the device MAC address as the username. It always sends "provision" for the password, and this password cannot be reconfigured.

C. The switch always sends the device MAC address as the username. Depending on the configuration, the password is the device MAC address or a configured password.

D. The switch always sends the device MAC address as the username and the password, and this behavior cannot be reconfigured.

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Questions 8

Refer to the exhibit. Exhibit 1

Exhibit 2

Exhibit 1 shows a simplified network topology. All infrastructure devices shown in the exhibit are successfully implementing (OSPF) on the interfaces. The exhibit also shows settings for OSPF areas. Exhibit 2 shows additional settings on IRF. The master within IRF 1 fails. Connectivity is disrupted for about one minute.

What can the network administrator do to prevent this issue occurring again?

A. Set up OSPF Bidirectional Forwarding Detection (BFD) on the routed link aggregation groups between the IRF virtual switches

B. Enable extended Link Access Control Detection Data Units (LACPDUs) on IRF 1 and IRF 4

C. On IRF 1, set up Bidirectional Forwarding Detection (BFD) Multi-Access Detection (MAD) with a dedicated link.

D. On each of the IRF virtual switches, enable opaque LSAs and set the OSPF graceful restart mode to IETF mode.

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Questions 9

A network administrator is configuring several HP Comware switches as an HP Intelligent Resilient Framework (IRF) virtual device. According to best practices at, which point during the IRF configuration process should the administrator activate the IRF ports?

A. After enabling the physical interfaces that are assigned to IRF ports and saving the settings

B. After configuring IRF ports but before assigning physical interfaces to them

C. After enabling the physical interfaces that are assigned to IRF ports but before saving the settings

D. Before configuring IRF ports or assigning physical interfaces to them

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Questions 10

Refer to the exhibit.

IRF 1, at the campus core campus core, enables Internet Group Management Protocol (IGMP) on its VLAN3 interface. IRF 1 is also part of a multicast routing solution with the data center infrastructure devices. How can a network administrator ensure that only endpoints that have registered for multicasts destined to 239.1.1.1 receive these multicasts?

A. On every campus IRF virtual switch, set VLAN 3 as the multicast VLAN

B. On IRF 1, enable IGMP snooping on VLAN3

C. On each access layer IRF virtual switch, enable IGMP snooping on VLAN 3

D. On each access layer IRF virtual switch, create a Layer 3 interface VLAN3. Enable IGMP on that interface

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Questions 11

Four HP 3800 Series Switches have formed a backplane stack in a ring topology. Member 1 is the commander the two stacking links on the member 1 fail. What happens?

A. If LACP Multi-Active Detection (MAD) is enabled and the stack connects to a ProVision switch on a link aggregation, member 2, 3 and 4 and shutdown the ports Otherwise, no ports are disabled

B. If LACP Multi-Active Detection (MAD) is enabled member 1 shuts down all of its ports. Otherwise, no ports are disabled

C. If the split policy is one-fragment-up member 1 shuts down all of its ports

D. If the switch policy is one-fragment-up members 2, 3, and 4 shut down all of their ports

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Correct Answer: C

Results of Disconnecting a Stacking Cable

If a stacking cable becomes disconnected from one of the switches in the stack, the effect depends on the stacking topology that is being used:

Mesh--The stack topology is temporarily changed to a ring. To recover, simply reconnect the stacking cable; the mesh topology and the previous stack configuration is restored.

Ring--There is little effect. The stack topology is temporarily changed to a chain topology. To recover, simply reconnect the stacking cable; the ring topology and the previous stack configuration is restored.

Chain--The following occurs:

The smaller section (fragment) of the stack that results from the disconnection becomes Inactive (the Stack Status value shown in the output of the show stacking command is Inactive).

If the two resulting fragments are the same size, the fragment that contains the Commander will be Active, and the other fragment becomes Inactive.

Both fragments will have a Commander and a Standby selected (if there is more than one switch in each fragment).

When the stacking cable is reconnected to reform the chain:

The Commander and Standby of the Active fragment retain those roles for the resulting stack. If the original Commander was not in that fragment, then the stack will have a new Commander when the stack is reformed. The switches in the Inactive fragment reboot and assume their new roles in the reformed chain.

Stack fragment - A stack that previously had more members (that is, some of its previous members are now missing). The fragment can be Active or Inactive based on the rules described.

Active Stack fragment - When a stack becomes fragmented, only one fragment remains Active; the other fragments become Inactive (all network ports are disabled). The active stack fragment inherits the MAC address and IP addressing of the stack for management. The fragment that has more switches in it will be the Active fragment. This allows more of the network ports to remain operational. If the fragments have the same number of switches in them, then the fragment that has the original Commander will be the Active fragment.

Inactive Stack fragment - The switches in this fragment do not actively switch packets. They are powered on, however, the network ceases to carry traffic. All user ports are disabled. Only the OOBM and stack ports remain active.

http://h20565.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c03018186

Questions 12

A company has a network with HP Provision switches. The network administrator is establishing remote mirroring session between two of the switches. The remote does not use the truncation option. What must the administrator check on any switches between the mirror source and destination?

A. The remote probe VLAN defined for the remote mirroring session extends across the switches.

B. All switches transmit the remote mirroring traffic as untagged traffic.

C. All switches transmit the remote mirroring traffic on single links, rather than link aggregations (or trunks).

D. The VLANs that carry the remote mirroring traffic support jumbo frames.

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Questions 13

A company is implementing 802.1X authentication. These are the requirements:

Employees who pass 802.1X authentication should be placed VLAN 3.

Guests and employees who cannot authenticate, or fail authentication, should be placed in VLAN4.

Different users might connect to port at different times, but only one device will connect to the port at the same time.

802.1X is enabled Globally on the switch (aaa port-access authenticator)

Which settings correctly configure the HP ProVision edge ports?