HP HP0-Y49 Online Practice Questions and Exam Preparation

HP HP0-Y49 Online Questions & Answers

• Question 31:

  Refer to the Exhibit.

  Exhibit: HP Comware switch configuration.

  [Comware] vlan 100 [Comware-vlan100] quit [Comware] vlan 200 [Comware-vlan200] quit [Comware] interface g1/0/22 [Comware-GigabitEthernet1/0/22] port link-type trunk [Comware-GigabitEthernet1/0/22] port trunk permit vlan 100 200 [Comware-GigabitEthernet1/0/22] quit A network administrator configures the Comware switch, as shown in the exhibit. The network administrator then connects a cable from the Comware's g1/0/22 interface to port 5 on an HP ProVision switch.

  Which configuration will successfully establish connection for VLAN 1, 100, and 200 between the two switches?

  A. ProVision (config) # vlan 100 ProVision (config) # vlan 200 ProVision (config) # vlan 100 tagged 5 ProVision (config) # vlan 200 tagged 5
  B. ProVision (config) # vlan 100 ProVision (config) # vlan 200 ProVision (config) # interface 5 tagged 100 200
  C. ProVision (config) # vlan 100 ProVision (config) # vlan 200 ProVision (config) # interface 5 tagged 100 ProVision (config) # interface 5 tagged 200
  D. ProVision (config) # vlan 100 200 ProVision (config) # vlan 100 200 tagged 5
  A. ProVision (config) # vlan 100 ProVision (config) # vlan 200 ProVision (config) # vlan 100 tagged 5 ProVision (config) # vlan 200 tagged 5

• Question 32:

  Which statement is true concerning spanning tree protocols and HP switches?

  A. ProVision switches use non-standard default cost values
  B. Comware switches have spanning tree enabled, by default
  C. ProVision switches, by default, auto-sense edge ports
  D. Comware switches use their serial number as the switch identifier in the bridge ID
  C. ProVision switches, by default, auto-sense edge ports

• Question 33:

  A network administrator has a network of HP ProVision switches with operator and manager passwords configured. The network administrator uses the copy config startup-config tftp pc command on each switch to save all the switch configuration to a TFTP server. The network administrator copies the configuration from one HP ProVision 3800 switch to an identical HP ProVision 3800 switch. The new switch no longer prompts for an operator or manager passwords.

  What is the cause of this problem?

  A. The passwords must the saved by using a separate TFTP transfer with the copy passwords tftp pc command.
  B. The passwords cannot be restored they contain special characters misunderstood by the TFTP server.
  C. The passwords cannot be restored by default, to the startup-config file on the switch when executing the write memory command.
  C. The passwords cannot be restored by default, to the startup-config file on the switch when executing the write memory command.

• Question 34:

  Why does HP recommended using SSH instead of Telnet for remote device management?

  A. SSH connections are established almost five times faster.
  B. SSH encrypts the data you exchange with the switch.
  C. SSH must be enabled for TFTP file transfers.
  D. SSH provides a graphical shell for GUI management.
  B. SSH encrypts the data you exchange with the switch.

• Question 35:

  Match the description with the 802.11 standard (each option can only be used once).

  Hot Area:

  

  

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  Is backward compatible with another 802.11 standard

• Question 36:

  What is the maximum number of Watts that the IEEE 802.1af standard supports?

  A. 11.2
  B. 15.4
  C. 17.7
  D. 25.5
  B. 15.4

• Question 37:

  Which statement is true about BPDU-Protection on HP Comware switches?

  A. BPDU-Protection is enabled on the root switches globally and will detect rogue switches on downlink ports.
  B. BPDU-Protection is enabled on the root switches, downlink ports and will detect rogue switches on those ports.
  C. BPDU-Protection is enabled globally and will detect rogue switches on edge ports.
  D. BPDU-Protection is enabled per port and will detect rogue switches on those ports.
  C. BPDU-Protection is enabled globally and will detect rogue switches on edge ports.

• Question 38:

  Which HP Comware component allows a network administrator to adjust the logging process?

  A. SNMP management center
  B. Information center
  C. Logging process
  D. System logging center
  B. Information center

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  Acting as the system information hub, information center classifies and manages system information, offering a powerful support for network administrators and developers in monitoring network performance and diagnosing network problems. The following describes the working process of information center:

  Receives the log, trap, and debugging information generated by each module. Outputs the above information to different information channels according to the user-defined output rules. Outputs the information to different destinations based on the information channel-to-destination associations.

• Question 39:

  Which statement is true about wireless technologies?

  A. 802.11n uses MIMO technology to improve data rates
  B. 802.11g uses GIGO technology to improve security.
  C. 802.11b/g use an 802.11a-compatible frequency.
  D. 802.11a uses the less crowded 2.4 GHz range.
  A. 802.11n uses MIMO technology to improve data rates

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  IEEE 802.11n is an amendment to IEEE 802.11-2007 as amended by IEEE 802.11k-2008, IEEE 802.11r-2008, IEEE 802.11y-2008, and IEEE 802.11w-2009, and builds on previous 802.11 standards by adding multiple-input multiple-output (MIMO) and 40 MHz channels to the PHY (physical layer), and frame aggregation to the MAC layer. MIMO is a technology that uses multiple antennas to coherently resolve more information than possible using a single antenna. One way it provides this is through Spatial Division Multiplexing (SDM), which spatially multiplexes multiple independent data streams, transferred simultaneously within one spectral channel of bandwidth. MIMO SDM can significantly increase data throughput as the number of resolved spatial data streams is increased.

• Question 40:

  What is the default payload size for an 802.3 Ethernet frame on HP switches?

  A. 1500 bytes
  B. 1518 bytes
  C. 1522 bytes
  D. 9022 bytes
  A. 1500 bytes