Designing Cisco Wireless Enterprise Networks
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Question: 1
Which two types of information must be included in the installation inventory portion of the postinstallation report? (Choose two.)
A. all AP, controller, and MSE administrator credentials
B. the names, locations, IP addresses, MAC addresses, etc. for every AP, controller, and MSE in the
C. a layout of the rack that the equipment is installed
D. results of the coverage audit performed with the site survey mapping tool
E. the number and type of all WLAN clients and tags

Answer: AB
Question: 2
A customer wants to implement a wireless network in a historic location, but is concerned about the
structural and aesthetic impact to the facility. Which benefit of using wireless mesh addresses these
A. Power is required only at the installation location.
B. The APs do not have LED lights.
C. More wireless channels can be supported.
D. APs do not need network connections.

Answer: D
Question: 3
An engineer is preparing for an indoor wireless LAN survey and is provisioning a survey kit. Which
three pieces of equipment should be included? (Choose three.)
A. external connector access point
B. integrated antenna access point
C. coax low-loss cable
D. battery operated power supply
E. range finder
F. Yagi antennas

Answer: BDE /
pg. 2

Question: 4
Which three options are benefits of U-APSD? (Choose three.)
A. optimized power-save mode periods
B. increased call capacity
C. bandwidth reservation
D. synchronization of the transmission and reception of voice frames
E. efficient roaming
F. priority bandwidth and polling

Answer: ABD
Unscheduled automatic power-save delivery (U-APSD) is a feature that has two key benefits:
The primary benefit of U-APSD is that it allows the voice client to synchronize the transmission and
reception of voice frames with the AP, thereby allowing the client to go into power-save mode
between the transmission/reception of each voice frame tuple. The WLAN client frame transmission
in the access categories supporting U-APSD triggers the AP to send any data frames queued for that
WLAN client in that AC. A U-APSD client remains listening to the AP until it receives a frame from the
AP with an end-of-service period (EOSP) bit set. This tells the client that it can now go back into its
power-save mode. This triggering mechanism is considered a more efficient use of client power than
the regular listening for beacons method, at a period controlled by the delivery traffic indication map
(DTIM) interval, because the latency and jitter requirements of voice are such that a WVoIP client
would either not be in power-save mode during a call, resulting in reduced talk times, or would use a
short DTIM interval, resulting in reduced standby times. The use of U-APSD allows the use of long
DTIM intervals to maximize standby time without sacrificing call quality. The U-APSD feature can be
applied individually across access categories, allowing U-APSD can be applied to the voice ACs in the
AP, but the other ACs still use the standard power save feature.
The secondary benefit of this feature is increased call capacity. The coupling of transmission
buffered data frames from the AP with the triggering data frame from the WLAN client allows the
frames from the AP to be sent without the accompanying interframe spacing and random backoff,
thereby reducing the contention experience by call.
Reference: vowlan_ch2.html#wp1045982

Question: 5
A customer has restricted the AP and antenna combinations for a design to be limited to one model
integrated antenna AP for carpeted spaces and one model external antenna AP, with high gain
antennas for industrial, maintenance, or storage areas. When moving between a carpeted area to an
industrial area, the engineer forgets to change survey devices and surveys several APs. Which option
is the best to reduce the negative impact of the design?
A. Deploy the specified access points per area type.
B. Resurvey and adjust the design.
C. Increase the Tx power on incorrectly surveyed access points. /
pg. 3

D. Deploy unsurveyed access points to the design.

Answer: B
Question: 6
An engineer is performing a predictive wireless design for a carpeted office space, which requires
voice capability and location services. Which two requirements are inputs to the design? (Choose
A. overlapping -67 dBm coverage from three access points
B. overlapping -75 dBm coverage from three access points
C. overlapping-72 dBm coverage from two access points
D. continuous -67 dBm coverage from one access pointE. continuous -72 dBm coverage from one
access point

Answer: A
For a voice network the APs are grouped closer together and have more overlap than a data-only
installation because voice clients need to roam to a better AP before dropping packets. Generally,
you should create smaller cells than for data-only networks and ensure the overlapping cell edges
are at or above -67 dBm.
ch3_WLAN.html#pgfId-1000250 /
pg. 4

For More Information: / /
pg. 5

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