HP0-Y43 questions and answers

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Exam Code: HP0-Y43
Exam Name: HP (Implementing HP Network Infrastructure Solutions Exam)
One year free update, No help, Full refund!
Total Q&A: 62 Questions and Answers
Last Update: 2013-11-22

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NO.1 View the exhibits.
Exhibit 1
The frame has these characteristics:
-VLANID = 3
-802.1p = 3
-DSCP=32
-Source IP address = 10.1.1.5
Click here for Exhibit 2
The frame shown in Exhibit 1 arrives on an HP 5800 switch's GigabitEthernet port 1/0/1. QoS maps are at
their default settings. Based on the configuration shown in Exhibit 2, to which queue is the outbound
packet assigned?
A. 2
B. 3
C. 4
D. 5
Answer: D

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NO.2 What is the role of neighbor solicitation (NS) messages in the autoconfiguration of an IPv6 address.?
A. An IPv6 node sends an NS message to inform a node undergoing autoconfiguration that it is already
using a particular address.
B. An IPv6 node sends an NS message for its tentative address to determine whether another node is
using it.
C. An IPv6 node sends an NS message for the global prefix to prompt other IPv6 nodes to advertise the
addresses that they are using on that prefix.
D. An IPv6 node sends an NS message to prompt an IPv6 router on the link to advertise the global
prefixes associated with the link immediately.
Answer: B

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NO.3 A network includes a mix of IGMPv2 and IGMPv3 endpoints and must support the following source
specific multicasting applications:
-Source: 10.1.4.2 and Group: 232.0.5.5
-Source: 10.1.4.12 and Group 232.0.6.6
The network is already implementing PIM-SM and IGMPv3. In order to support these applications, the HP
10500 switches that act as routers for the endpoints in question must support another feature. Which step
must the network administrator perform on each of these switches?
A. Create an SSM policy that includes 232.0.5.5 and 232.0.6.6 within its range
B. Enable IGMPv2 backward compatibility mode
C. Configure two SSM maps, each of which mapsa source to its multicast group
D. Enable PIM SSM on the interfaces that connect to the endpoints
Answer: C

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NO.4 A company has a service level agreement (SLA) with its service provider. The SLA specifies a 2 Mbps
committed information rate (CIR) and 20 KB committed burst size (CBS). Lately, during peak usage times,
the company has been experiencing brief periods of poor performance on its external connection
(GigabitEthernet port 2/0/1 on an HP 5800 switch).
How can the network administrator configure the Comware switch to address this problem?
A. Configure a traffic classifier that selects all traffic and a car traffic behavior that sets the CIR to 2 Mbps
and the CBS to 20 KB. Create a QoS policy that maps the classifier to the action and apply this policy as
an inbound policy on port GigabitEthernet 2/0/1.
B. Enable Strict Priority (SP) scheduling on port GigabitEthernet 2/0/1 and ensure that all inbound traffic is
marked with the correct priority.
C. Configure generic traffic shaping (GTS) on the GigabitEthernet port 2/0/1, setting the CIR to 2 Mbps
and the CBS to 20 KB.
D. Configure a traffic classifier that selects all traffic and a car traffic behavior that sets the CIR to 2 Mbps
and the CBS to 20 KB. Create a OoS policy that maps the classifier to the action and apply this policy as
an outbound policy on port GigabitEthernet 2/0/1.
Answer: C

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NO.5 A customer requires an HP FlexCampus solution with a core that scales to 40/100G. Which HP switch
fabric meets this need?
A. the 7500's CLOS switch fabric
B. the 10500's CLOS switch fabric
C. the 7500's crossbar switch fabric
D. the 10500's crossbar switch fabric
Answer: B

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NO.6 How can a high density of ports and high throughput at the core of an HP FlexNetwork save customers
money?
A. Intelligence is offloaded from the edge switches, enabling customers to save money on the most
numerous switches in their solutions.
B. The customer can combine the data center and campus LAN core into a single entity, reducing power
and cooling costs.
C. The customer no longer needs to deploy modular switches at the distribution level and the edge,
deploying more cost-effective stackable switches instead.
D. The architecture can be simplified, eliminating expensive distribution devices and reducing power and
cooling costs.
Answer: D

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NO.7 Which switch is best suited to act at the edge of a medium to large HP FlexFabric solution?
A. 10500
B. 5500
C. 9500
D. 5830
Answer: D

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NO.8 A company has a network that includes HP 5800 and 12500 switches. Usage demands on the
company's FTP servers have increased, causing performance issues during peak usage times. While
analyzing link utilization, the network administrator noticed that the most heavily utilized links experience
bursts of congestion, causing them to drop traffic. The links then experience brief periods of low utilization
followed by another burst of congestion. This pattern continues periodically throughout the peak utilization
time.
What should the network administrator do to attempt to create a more efficient traffic pattern on these
links?
A. Configure an outbound traffic policing policy on the ports in question, setting the CIR at about sixty
percent of the ports' capacity and the PIR at about eighty percent.
B. Apply Weighted Fair Queuing (WFQ) or Weighted Round Robin (WRR) scheduling in preference to
Strict Priority (SP) scheduling on the ports in question.
C. Configure inbound traffic policing policies on ports at the core, setting the CIR at about sixty percent of
the ports' capacity and the PIR at about eighty percent. Apply outbound generic traffic shaping (GTS) on
ports facing the core ports, setting the CIR equal to the CIR on the core ports.
D. Apply a WRED table to the ports in question, optionally adjusting the table values to drop lower priority
traffic first.
Answer: D

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NO.9 View the exhibit.
The exhibit shows a network with HP 5400 zl and 8200 zl switches throughout the core and edge. What is
one advantage of implementing routing on edge switches?
A. Typically, it is easier to implement user-based VLAN assignments.
B. The topology has higher redundancy because edge switches can take over routing roles when
necessary.
C. Typically, the network can use fewer total VLANs when edge switches implement routing.
D. Typically, it is easier to ensure that routed links between edge and core switches are fully utilized.
Answer: D

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NO.10 View the exhibit.
A network administrator wants to configure an HP 5800 switch to place all incoming traffic on the
GigabitEthernet 1/0/1 port in priority queue 3. However, one exception applies. All traffic incoming on that
port that is destined to UDP port 55555 should be forwarded in priority queue 4 and marked with DSCP
32.
Based on the current configurations shown in the exhibit, which further steps must the network
administrator perform? (Select two.)
A. Configure port GigabitEthernet 1>0/1 to trust DSCP
B. Apply QoS policy Policy1 as on inbound policyon port GigabitEthernet 1/0/l
C. Apply QoS policy Policy2 as on inbound policyon port GigabitEthernet 1/0/1
D. Create a OoS Ip-dscp mapthat maps Ip value 4 to DSCP02
E. Undo OoS trust on port GigabitEthernet 1/0/1
Answer: B,E

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