Free CWNP CWAP-403 Actual Exam Questions

Which one of the following should be the first step when troubleshooting a WLAN issue?

Which one of the best following is an advantage of using display filters instead of capture-time
filters?

Protocol analyzers may present field values in either binary, decimal or hexadecimal. What precedes
a
hexadecimal value to indicate it is hexadecimal?

What should the To DS and From DS flags be to set to in an Association Response frame?

How does a VoIP Phone, using WMM Power Save, request data frames buffered at the AP?

Where would you look in a packet trace file to identify the configured Minimum Basic Rate (MBR) of
a BSS?

When performing protocol analysis, you notice a high number of RTS/CTS frames being transmitted
on an HT network. You suspect this may be due to HT protection mechanisms. Where in the Beacon
frame would you look to determine which one of the four HT protection modes the AP is operating
in?

In a Spectrum Analyzer the Swept Spectrogram plot displays what information?

A manufacturing facility has installed a new automation system which incorporates an 802.11
wireless network. The automation system is controlled from tablet computers connected via the
WLAN. However, the automation system has not gone live due to problem with the tablets
connecting to the WLAN. The WLAN vendor has been onsite to perform a survey and confirmed good
primary and secondary coverage across the facility. As a CWAP you are called in to perform Spectrum
Analysis to identify any interference sources. From the spectrum analysis, you did not identify any
interference sources but were able to correctly identify the issue. Which of the following issues did
you identify from the spectrum analysis?

Where, in a protocol analyzer, would you find an indication that a frame was transmitted as part of
an AMPDU?

As a wireless network consultant you have been called in to troubleshoot a high-priority issue for one
of your customers. The customer’s office is based on two floors within a multi-tenant office block. On
one of these floors (floor 5) users cannot connect to the wireless network. During their own testing
the customer has discovered that users can connect on floor 6 but not when they move to the floor
5. This issue is affecting all users on floor 5 and having a negative effect on productivity.
To troubleshoot this issue, you perform both Spectrum and Protocol Analysis. The Spectrum Analysis
shows the presence of Bluetooth signals which you have identified as coming from wireless mice. In
the protocol analyzer you see the top frame on the network is Deauthentication frames. On closer
investigation you see that the Deauthentication frames’ source addresses match the BSSISs of your
customers APs and the destination address is FF:FF:FF:FF:FF:FF:FF.
What do you conclude from this troubleshooting exercise?

What is the function of the PHY Preamble?

Which one of the following is not a valid acknowledgment frame?

A PHY Header is added to the PSDU at which sub-layer?

An RST frame should be acknowledged by which frame?