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802.11 Frame Exchanges – Security #CWAP7

802.11 Frame Exchanges section account for 25% of syllabus for CWAP-403 exam. Potentially around 15 questions out of 60 in the exam can be expected from this section. This blog post focuses on the “security” component of 802.11 Frame Exchange. I will be focusing on other sections in the subsequent posts in the next week or two. Let’s begin! Authentication […]

How to Run and for little longer!

I’ve always wanted to write about “Running” as a focus on health/fitness regimen. Running is one of the best forms of cardio exercises which can improve overall health. I’ve been running for the past 10+ years. The maximum i’ve run is 22kms~13.1 miles for a half marathon. I normally don’t run any less than 3-5kms in a given run. Generally […]

WLAN Medium Contention – #CWAP6

Accounts for 10% of the CWAP knowledge domain areas, approx. 6/60 questions Medium Contention :Protocols that allow large number of devices to effectively share the wireless channel. All AP & STAs will contend with each other on a common transmission medium. CSMA / CA – The AP/STAs (802.11) use carrier sense multiple access with collision avoidance as opposed to collision […]

PHY Layer – CWAP#5

This chapter accounts for 10% of the Knowledge Domain in the CWAP exam. Approx. 6/60 questions! Exam Moment from the Book : It is not important, for the CWAP exam, that you know all the details of the variations of the PHY preambles; however, you should know that the preamble adds extra overhead to the communications and that older devices […]

Key 802.11 Frames – CWAP#3

This post covers the important 802.11 Frames which can help in performing the analysis and troubleshoot any issues related to WLAN networks. I have referenced Wireshark filters for the ease of each frame. Beacon (1000, Subtype : 8) (wlan.fc.type_subtype == 0x08) Used to announce the Basic Service Set (BSS) for the Client (STAs). Transmitted by AP every 100 time units.  […]