new ccna modules

new ccna modules.6.3.3 Explain the key terms Explain the key terms in this chapter and check your answers against the glossary. FHSS, DSSS, ISM, OFDM, beacons.ERP, RTS/CTS, CTStoself,DFC, TPC, -MIMO, preceding,transmitbeamfbrming, spatialmultiplexing,channelstateinformation,blockacknowledgments,DIFS,RIFSOWireless frame transmission:Discusses how frames are transmitted over a WLAN.Wireless frame headers: describes the frame headers used in wireless transmissions OFrame Types: An introduction to the use of frame types in managing and connecting networks.Wireless connectivity: Introduces wireless connectivity.Wireless Traffic and AP DiscoveryIn your daily life, you don't see yourself obeying traffic laws. At least you don't have the hope of having to comply. However, sometimes it is necessary for you to analyze traffic when troubleshooting network problems. For this reason, in order for you to fully grasp what wireless traffic entails, you need to understand the process of wireless traffic and AP discovery. In this chapter, you will learn how a client can discover an AP, associate with it, and send traffic.The first thing you should do is take the "Do I already know this?" test question. If you get 80% or more correct, you can go straight to the "Preparation Task". If you get less than 80% correct, you should take some time to review the entire chapter. Refer to Appendix A, "'Do I Know This Already? Test Questions AnswerCheck your answers with the "case".