[QnA] at this point im too afraid to ask, How does centralized exchange like binance store and trade our asset

okay, call me a noob,

everytime u do trade in centralized exchange, for example you trade eth, if you search your erc20-eth wallet address, the transaction wont tracked on eth-erc20 blockchain explorer, so how and where does centralized exchange store and trade our asset?

does trading activity uses blockchain? if yes, which blockchain? does it stored and trade in binance network chain (their own network chain) with 1:1 ratio (just like "binance-peg token" in their dex) so they can save up fees and give low trading fees?