Problem 1:

(a) Briefly explain each of the following wireless standards:

(i) WiFi
(ii) WiMAX
(iii) 3G.

Problem 2:

(b) Bluetooth is an industrial specification for wireless personal area networks. Bluetooth provides a way to connect and exchange information between devices like personal digital assistants (PDAs), mobile phones and laptops via a secure, globally unlicensed short range radio frequency. A future version of Bluetooth code-named, Lisbon, would provide improved security and usability features.

Briefly explain each of the following features of Lisbon:

(i) Extended Inquiry Response
(ii) Atomic Encryption Change
(iii) Sniff Subrating
(iv) Qos
(v) Simple Pairing.