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 Mobile Computing PYQ Questions Q1. Answer following in brief:  a) Explain Data dissemination issues in mobile networks.   Data dissemination issues in mobile networks refer to the challenges and considerations involved in distributing data efficiently and effectively to mobile devices. Some of the key issues include limited bandwidth, high latency, frequent disconnections, and varying network conditions. Strategies such as caching, prefetching, and adaptive data delivery algorithms are used to address these challenges and optimize data dissemination in mobile networks. b) Explain the WAP Architecture in brief. WAP (Wireless Application Protocol) Architecture is a protocol stack designed for wireless communication and mobile devices. It consists of multiple layers including the Wireless Application Environment (WAE), Wireless Session Protocol (WSP), Wireless Transaction Protocol (WTP), Wireless Transport Layer Security (WTLS), and others. The architecture enables mob...

 GGSIPU | B.TECH | 8th Semester | Mobile Computing | Unit 3 & 4 Unit 3 a) Discuss Mobile IP. What are modifications in TCP for Mobile environment? Mobile IP is a protocol that allows mobile devices to maintain connectivity while moving across different networks. It enables seamless mobility by assigning a unique IP address to the mobile device, which remains constant regardless of its location within the network. Mobile IP consists of three main entities: the mobile node (MN), the home agent (HA), and the foreign agent (FA). The MN is the mobile device itself, while the HA and FA are network entities responsible for managing the movement of the MN. The HA acts as the anchor point for the MN and is responsible for maintaining its permanent IP address, known as the home address. Whenever the MN moves to a foreign network, it registers its temporary care-of address with the FA in that network. The FA then forwards packets destined for the MN to its current care-of address. Now,...