In a wireless LAN, which of the following cannot happen?
A. Detection of collisions
B. data frame acknowledgement
C. Data transfer in many modes
D. wired network connectivity
Answer:A
In a wireless LAN, which of the following cannot happen?
A. Detection of collisions B. data frame acknowledgement C. Data transfer in many modes D. wired network connectivity
Explanation: In a wireless LAN without extensions, collision detection is impossible. In Wireless LANs, collision detection algorithms for multiple access, such as CSMA/CD, are employed.