802.11 Protocol Architecture
CWAP Exam Objectives Covered:
Explain and describe the frame exchange processes
involved in:
Active and Passive Scanning
802.11b/g mixed mode environments and
protection mechanisms
Explain Interframe Spacing
SIFS, PIFS, DIFS, EIFS
Contrast the differences between the frame
exchange processes in:
PCF vs. DCF access methods
Explain 802.11 Contention
CSMA/CA (half duplex)
Backoff timer operation
Virtual Carrier Sense (NAV)
Physical Carrier Sense (CCA)
Contention Window operation
Explain Slot Times
802.11a/b/g
Special operation in 802.11b/g mixed mode
environments
Contrast the differences between the frame
exchange processes in:
Infrastructure vs. Independent Service Sets
