Tip 1 : You should know how to design a schema using any DB
Tip 2 : Do atleast 1 project
Tip 3 : Practice basic data structures like stack, string, heap etc
Tip 1 : Mention all the projects you have done
Tip 2 : Give the urls for github or other coding platforms
What is event loop?
What is redis?
What is indexing in mongo db?
Difference between scaling and sharding.
What is indexing?
How does it make the DB calls faster?
Discussion about projects I have done.

Here's your problem of the day
Solving this problem will increase your chance to get selected in this company
What is the purpose of the return keyword?