Testking HP HP0-759
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Exam Number/Code: HP0-759
Exam Name: HP ProCurve Combined Security and Mobility Exam
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Question: 1
Which actions should be taken to test access point coverage during a site survey? Select
THREE.
A. Temporarily install an access point to test and measure signal to noise ratio levels.
B. Use a wireless enabled portable device running an SNR analyzer tool.
C. Configure all access points to use the same channel and enable bridge mode operation on all
access points. Test connectivity and roaming once the site AP’s are setup in bridge mode.
D. Enable and verify 802.1X security to insure proper signal encryption and strength.
E. Configure overlapping cells using non-overlapping channels and test for coverage.
F. Configure WEP keys on client and access points.
G. Configure a WDS link between two access points.
Answer: A, B, E
Question: 2
Site surveys are best done at the pre-sales stage in order to provide a customer with a rough
estimate of what their investment will be. What are some important results derived from a site
survey? Select TWO.
A. How far should the APs be spaced apart (what cell size is needed)?
B. Are there available dedicated power circuits for AP usage to limit noise feedback?
C. Base estimated cell radius of 33 meters supporting 60-90 users at 5.5 Mbps aggregate
bandwidth.
D. How many APs will be required in a given area (cell density)?
E. Use an Ultrasonic Wave Analyzer to test signal to noise ratio for proper placement of access
points.
Answer: A, D
Question: 3
Clients A and B attempt to communicate with access point C at the same time and a collision
occurs because they cannot detect each other’s transmissions. Which problem does this
illustrate?
A. fast transform
B. retransmission
C. key mis-match
D. hidden client
Answer: D
Question: 4
Given the complicated nature of wireless bridging, what must be considered before
implementation? Select THREE.
A. auto channel select must be enabled
B. circular links require spanning tree to be set
C. WDS links need to be set to same frequency channel
D. multiple hop links need to be reduced to less than three
E. multiple hop links may lead to long end-to-end latency figures
F. circular links can create IP loops leading to increased performance
G. WDS links need to be set to alternating frequency channels using 1, 6 and 11
Answer: B, C, E
Question: 5
A customer is located on the top floor of a three-story building. The second floor already has an
existing 802.11b network using channels 1, 6 and 11. The customer on the third floor wants to
install an 802.11b network and requires three access points.
Which channels should be used for the three access points? Select TWO.
A. AP-A: channel 1, AP-B: channel 6 and AP-C: channel 11
B. AP-A: channel 7, AP-B: channel 8 and AP-C: channel 9
C. AP-A: channel 11, AP-B: channel 1 and AP-C: channel 6
D. AP-A: channel 2, AP-B: channel 3 and AP-C: channel 4
E. AP-A: channel 6, AP-B: channel 11 and AP-C: channel 1
Answer: C, E
Question: 6
What is the valid range for client VLAN IDs on a ProCurve 420?
A. 1-64
B. 1-128
C. 1-2048
D. 1-4095
Answer: D
Question: 7
Two wireless stations are located in close proximity to the same access point. Which
mechanisms prevent them from transmitting at the same time? Select TWO.
A. CSMA-CD
B. SYN/ACK
C. CSMA-CA
D. MAC/LLC
E. RTS/CTS
Answer: C, E
Question: 8
While probing a wireless network using the wireless client utility on you computer, you can see
that several different SSIDs are shown to be available. Which procedure has your wireless card
just performed?
A. a passive scan
B. a WPA PSK refresh
C. an active scan
D. a WEP key refresh
Answer: C
Question: 9
A user is authenticated through a ProCurve 420 with VLANs enabled. However, the RADIUS
authentication server does not return a VLAN attribute. What will happen to the user? The user
will be _______.
A. placed in the Unauthorized VLAN
B. denied access completely
C. placed on the Management VLAN
D. placed in the access point’s Native VLAN
Answer: D
Question: 10
A customer has noticed that the throughput on his wireless network is not sufficient for his
business requirements. As a first step in trying to alleviate this problem, you decide to increase
the multicast rate on all of his access points to the maximum setting. This will help to improve real
throughput because the multicast rate is the _______.
A. rate at which WEP keys are refreshed
B. rate at which access points send out beacon frames to clients
C. rate at which control and management frames are transmitted to all associated clients
D. raw data rate at which packets are transmitted between a single client and access point
Answer: C
Question: 11
You are installing an access point that is transmitting at 16 dBm. It is connected to a directional
patch antenna with a rating of 6.5 dBi through a cable and connector set that is rated at 2.5 dBi.
What is the effective gain of this configuration?
A. 25 dB
B. 20 dB
C. 12 dB
D. 30 db
Answer: B
Question: 12
During a wireless implementation for a local college you plan to use omni-directional diversity
antennas for the internal public areas of the campus. You chose these antennas because they
provide RF coverage in ________ of the antenna.
A. a concentrated direction around the horizontal axis
B. all directions around the vertical axis
C. a particular direction along the vertical axis
D. all directions around the horizontal axis
Answer: B
Question: 13
When designing wireless networks, it is important to remember that government agencies limit
the power of RF based networks in certain radio bands. The emitted power of a radio transmitter
and any attached antenna is known as its ________.
A. Radiated Radio Frequency Power
B. WIreless System Power Radiation
C. Effective Isotropic Radiated Power
D. Effective Total Power Output
Answer: C
Question: 14
A customer has asked you to design a wireless network for his office using HP 420 Access
Points. In one area you decide to use a directional antenna to ensure that the wireless signal
propagates down a long hallway. If you wish to limit the radiated power to 1 Watt, what is the
highest gain directional antenna that you can use if the access point it is connected to is
transmitting at full power?
A. 2 dBm
B. 6.5 dBm
C. 10 dBm
D. 14 dBm
Answer: C
Question: 15
In designing a wireless network, the customer needs to have wireless coverage in their
warehouse facility for the automated picking and bar-coding inventory system. The warehouse is
a wide open space filled with tall, multi-bay steel racks that are filled with an inventory of large
metal pumps and valves. To get sufficient coverage down these long aisles, which antenna would
you recommend?
A. omni-directional mast
B. parabolic dish
C. directional patch
D. omni-directional dipole
Answer: C
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