Hi yousaf! An interesting base of information. Was very glad to see your topic and I like it a lot. This will be my first entry in the initiative, as a whole. Take a look at it when you can .

https://steemit.com/hive-108451/@blind-spot/steemit-crypto-academy-season-2-week-3-or-or-homework-post-for-decentralized-and-centralized-exchanges