PW0-205 Wireless LAN Analysis Test Exam Answer

Demo Question 26.

You are a administrator at EliteCertify.com. EliteCertify.com is currently experiencing random throughput problems around their entire 802.11b/g mixed mode deployment. Originally there were both 802.11b and 802.11g stations on the network, but throughput levels were adequate at any given time. To troubleshoot this problem, you set up a distributed wireless protocol analyzer, which notices a considerably greater percentage of 1 Mbps Data traffic being sent in random places across the network compared to the initial baseline testing. Only a minimal amount of 1 Mbps Data traffic was considered acceptable when the network was installed. What is a possible cause of this problem, and how would the analyzer detect the 1 Mbps traffic?

A. A wireless network management system has updated all access points to allow only use of the long slot time. The analyzer views the SERVICE field in the PLCP header to see the frames?transmission rates.
B. Due to changes in the office environment, some client stations are moving further away from the access points than when the baseline tests were performed. The analyzer views the SIGNAL field in the PLCP header to see the frames transmission rates.
C. An access point configured for 802.11b/g mixed mode has been reconfigured to send downstream traffic in a round-robin fashion when protection is enabled. The analyzer views the length of the preamble to determine the transmission rate of associated stations.
D. A new 802.11g station has a minimum transmission rate set at 1 Mbps. The analyzer views the Start Frame Delimiter (SF field in the PLCP header to see the frames?transmission rates.


Display Answer

Answer: B

Explanation: