Why is a high CRC error rate in L2 protocol analysis software NOT always a valid indicator of network
performance? (Choose 3)
As a WLAN consultant, you have been asked to troubleshoot a problem with a single wireless client station
(Station-Z). Your customer informs you that other wireless client stations are not having problems with
wireless connectivity, and that Station-Z is configured in the same manner as all other wireless client
stations on the network. Station-Z is showing an unusually high retransmission count in its client utility
statistics. Using a wireless protocol analyzer, where and how should you begin troubleshooting this
problem? (Choose 2)
Shown is a screenshot of a wireless protocol analyzer displaying the decode information for a single 802.11
encrypted data + CF-Poll frame. The infrastructure BSS on which this information was captured is using
WEP and this particular frame was sent from a client station (STA) to an access point (AP).As a protocol analyst, how would you explain the existence of this frame on the wireless medium given the
information in the decode?
When 802.11 standard compliant AES-CCMP security is being used with IPSec/ESP for layered security,
what will a WLAN protocol analyzer see as the security mechanism in use when a user browses to an
HTTPS secured web page?
Given: There are many differences between analyzing wireless and wired networks. In a wireless network,
there is no guarantee that one station can hear another station’s transmissions.
If no corrective actions are taken nor corrective mechanisms implemented when a “hidden node” problem
exists, which measurable statistics parameter will likely increase in a wireless protocol analyzer?
ABC Company’s WLAN administrator is getting complaints from one user that his WLAN throughput is
sluggish compared to other users in his area. The administrator takes his diagnostics laptop, which has a
wireless protocol analyzer installed, to the area where the complaining user works. The administrator uses
the PING utility to test connectivity from the complaining user’s wireless client station to another wireless
client station across the closest access point, while capturing the wireless frames. The administrator sees
what is displayed in this screenshot.From this screenshot, which statements can you conclude to be TRUE that are related to the complaining
user’s throughput problem? (Choose 2)
While at a government-operated facility, you are attempting to troubleshoot a WLAN performance problem
using a wireless protocol analyzer. When you start capturing frames, you see a proprietary layer 2 protocol
running over the ERP network as shown in this screenshot. The facility’s WLAN administrator confirms that
this protocol is proprietary and used for both data encryption and compression.
How will this information affect the steps you take to troubleshoot performance problems on this WLAN?