Q2) [15 marks] Wireless networks are pillars of mobile computing despite their known limitations. Many techniques and mechanisms have been introduced to developed nowadays networks and services.

1. What are the limitations of wireless networks?
2. IEEE 802.11 is a standard for WLANs. Describe the WLAN in your household and the standards which it supports?
3. Discuss multiple access techniques in 4G cellular networks.

# Note (I want the correct answer in a short time, maximum 20 minutes)