I did not know how to study for the exam. I was also WLAN Regulations and Standards, WLAN Network Architecture and Design Concepts, etc topics which were a little difficult. Then i opted for CWNA-109 mock tests. The Wireless Network Administrator premium practice questions cover topics from all the syllabus. This gave me the exposure and also the tricks on how to solve the questions and approach them. I realized that practice is the only strategy that helps in clearing the certification exam.