Answer to the question NUmber (1): The name of the topic i have learned this week is- *Data structure *Data structure Application *Link-list,tree,Queue, stack,graph. *Dynamic memory allocation. Ans of Question Number (2): Data structure is a foundation of computer science. It helps computing to store data Efficiently in short time and process data Cleverly. *Processing speed: To handle very large data, high-speed processing is required, but with growing data processor may fail to achive required processing speed. *Data Search: Getting a particular record from database should be quick and with optimum use of resources. *Multiple requests: To handle simultanous requests from multiple users Answer to the question Number (3): The Real life Application's Example- 1-Tree=Gallery 2:Graph=Facebook graph API 3:Queue=A car wash,Vehicles on Toll-tax bridge. 4:Stack=the tanis ball in their container,,stack of chairs.