Level 1: You need to give your full name (Cannot be changed) and you will be able to withdraw not more than 1 BTC
Level 2: KYC document like passport, drivers license, etc. and you will be able to withdraw not more than 10 BTC
Level 3: A picture of you holding your ID and you will be able to withdraw more than 10 BTC
Here are just examples I've made, you can use any exchange with only finishing the Level 1 verification and you can use any name you want but this is only for traders or investors that doesn't have big investments if your investments exceeds 1BTC then you need to complete the level 2 verification.