Preparation tips for Amazon SDE 2 bar raiser round?

Hi, I have amazon LLD round scheduled next week. Can someone please suggest a list of topics/questions to definitely prepare?

What are some best means to prepare for an sde2 role?

8 YoE. Interviewing for a SDE 3 Embedded Engineer role at Amazon Chennai. I have solved Blind 75 and fair idea of system design. I have a coding telephone interview coming up next Thursday. Any tips to crack or at-least do decently?

I am preparing for a SDE-2 role in a product based company. There are many online blogs that tells me what to prepare but I am looking out from where I can learn all of these things.

DSA - ? LLD - ? HLD - ?

Also let me know in the comm...